The search for knowledge has continued to expand to new domains since its start in the seventeenth century. Some of them have proved unusually resistant. Methods have had to proliferate to deal with the obstacles, for example in the social domain. There also have been ideological reactions. Surprisingly frequently, methods and activities that appear to be effective in dealing with such domains are classified as "preliminary" or are distinguished by a "point of view" that has yet to be transcended to (...) achieve "true" knowledge. One such activity is the acquisition of high quality experience. It is argued in the paper that it does not deserve being treated as a poor relative. It has a history of its own and can point to many successes, for example in the development of new values and emotions. Its only drawback seems to be that the search for high quality experiences has tended to be heuristic, or if one wishes, artistic. This situation is changing, however. In the paper the differences between the acquisition of knowledge and that of high quality experience are delineated. It is argued that facilitation of the latter's searches requires the development of interactions between entities that generate and structure experiences--i.e., of human collectives that stabilise sufficiently to execute a collective action in their environment. They are characterised by the use of coordinating languages. (shrink)

A recent hypothesis in empirical brain research on language is that the fundamental difference between animal and human communication systems is captured by the distinction between finite-state and more complex phrase-structure grammars, such as context-free and context-sensitive grammars. However, the relevance of this distinction for the study of language as a neurobiological system has been questioned and it has been suggested that a more relevant and partly analogous distinction is that between non-adjacent and adjacent dependencies. Online memory (...) resources are central to the processing of non-adjacent dependencies as information has to be maintained across intervening material. One proposal is that an external memory device in the form of a limited push-down stack is used to process non-adjacent dependencies. We tested this hypothesis in an artificial grammar learning paradigm where subjects acquired non-adjacent dependencies implicitly. Generally, we found no qualitative differences between the acquisition of non-adjacent dependencies and adjacent dependencies. This suggests that although the acquisition of non-adjacent dependencies requires more exposure to the acquisition material, it utilizes the same mechanisms used for acquiring adjacent dependencies. We challenge the push-down stack model further by testing its processing predictions for nested and crossed multiple non-adjacent dependencies. The push-down stack model is partly supported by the results, and we suggest that stack-like properties are some among many natural properties characterizing the underlying neurophysiological mechanisms that implement the online memory resources used in language and structured sequence processing. (shrink)

We introduce a set of biologically and computationally motivated design choices for modeling the learning of language, or of other types of sequential, hierarchically structured experience and behavior, and describe an implemented system that conforms to these choices and is capable of unsupervised learning from raw natural-language corpora. Given a stream of linguistic input, our model incrementally learns a grammar that captures its statistical patterns, which can then be used to parse or generate new data. The grammar constructed (...) in this manner takes the form of a directed weighted graph, whose nodes are recursively (hierarchically) defined patterns over the elements of the input stream. We evaluated the model in seventeen experiments, grouped into five studies, which examined, respectively, (a) the generative ability of grammar learned from a corpus of natural language, (b) the characteristics of the learned representation, (c) sequence segmentation and chunking, (d) artificial grammar learning, and (e) certain types of structure dependence. The model's performance largely vindicates our design choices, suggesting that progress in modeling language acquisition can be made on a broad front—ranging from issues of generativity to the replication of human experimental findings—by bringing biological and computational considerations, as well as lessons from prior efforts, to bear on the modeling approach. (shrink)

Modern human beings are most sharply distinguished from all other organisms alive today by their possession of symbolic reasoning, the cognitive capacity that makes possible the mental construction of alternative versions of the world. Scrutiny of the human fossil and archaeological records reveals that, while brain sizes expanded independently in several hominid lineages over the course of the Pleistocene, this qualitatively distinctive symbolic faculty only emerged in our own. What is more, this acquisition was made remarkably (...) recently: well within the 200,000-year tenure on Earth of our anatomically distinctive species Homo sapiens. The earliest anatomical Homo sapiens appear to have behaved in much the same manner as their non-symbolic contemporaries, although it is highly likely that they had acquired the neural wiring necessary for symbolic thought in the same event of developmental reorganization that gave Homo sapiens its strikingly derived bony morphology. Only subsequent to about 100,000 years ago do archaeological traces suggest that our forebears had actually begun to think symbolically. This implies that the new capacity was released by a purely cultural stimulus. I suggest that cultural trigger involved was the spontaneous invention of language by members of a small population isolate of Homo sapiens in Africa, at some time after about 100,000 years ago. Structured, rule-bound language is intricately intertwined with symbolic thought as we experience it today; and it is possible to conceive at least in principle how each could have fed back into the other to create a new dynamic. (shrink)

With this monograph on Kant and the problem of language, Raphaël Ehrsam develops a well-argued reconstruction of the architectonic place of language in Kant’s philosophy. The author terms his argument “genetic thesis”. On Ehrsam’s genetic thesis, in Kant’s philosophy the mastery of linguistic competences is indispensable to the acquisition of a priori theoretical and practical cognitions. The material of the book can be divided into three parts. In the first part (Introduction and Chapter One), Ehrsam frames the (...) subject by outlining his thesis and foregrounding Kant’s notions of acquisition and epigenesis. In the second part (Chapters Two - Five), he then articulates his thesis by reconstructing the functions played by specific linguistic instances in Kant’s theoretical and practical philosophy. The third part (Chapter Six) is devoted to sketching Kant’s thoughts on how the human being, both as an individual and a species, acquires linguistic competences. (shrink)

In recent years, the study of formal semantics and formal pragmatics has grown tremendously showing that core aspects of language meaning can be explained by a few principles. These principles are grounded in the logic that is behind - and tightly intertwined with - the grammar of human language. In this book, some of the most prominent figures in linguistics, including Noam Chomsky and Barbara H. Partee, offer new insights into the nature of linguistic meaning and pave (...) the way for the further development of formal semantics and formal pragmatics. Each chapter investigates various dimensions in which the logical nature of human language manifests itself within a language and/or across languages. Phenomena like bare plurals, free choice items, scalar implicatures, intervention effects, and logical operators are investigated in depth and at times cross-linguistically and/or experimentally. This volume will be of interest to scholars working within the fields of semantics, pragmatics, language acquisition and psycholinguistics. (shrink)

The false attribution of autonomy and related concepts to artificial agents that lack the attributed levels of the respective characteristic is problematic in many ways. In this article, we contrast this view with a positive viewpoint that emphasizes the potential role of such false attributions in the context of robotic language acquisition. By adding emotional displays and congruent body behaviors to a child-like humanoid robot’s behavioral repertoire, we were able to bring naïve human tutors to engage in (...) so called intent interpretations. In developmental psychology, intent interpretations can be hypothesized to play a central role in the acquisition of emotion, volition, and similar autonomy-related words. The aforementioned experiments originally targeted the acquisition of linguistic negation. However, participants produced other affect- and motivation-related words with high frequencies too and, as a consequence, these entered the robot’s active vocabulary. We will analyze participants’ non-negative emotional and volitional speech and contrast it with participants’ speech in a non-affective baseline scenario. Implications of these findings for robotic language acquisition in particular and artificial intelligence and robotics more generally will also be discussed. (shrink)

Language learning and language typology are often studied separately, and it is common for experts in one area to know rather little about the other. This is not merely an unfortunate historical coincidence; there are some powerful practical reasons why it is so. The detailed study of language learning typically involves the experimental investigation of groups of people who are at various stages in the learning process—i.e., children. Hence it prototypically takes place at university daycares in North (...) America, where the children are usually learning English. In contrast, the study of typology is concerned with probing the full extent of the diversity that natural human languages can exhibit, and with finding and explaining any limits to that diversity that exist. As a result, it prototypically involves doing fieldwork with small numbers of fully competent adult speakers of less-studied languages. This fieldwork is made possible either by the researcher traveling to the often-remote areas of the world where these less-studied languages are spoken, or by finding speakers who have come nearer to the researcher through immigration. As a result, the contexts in which language acquisition can readily be studied and the contexts in which language typology can effectively be studied rarely overlap. Indeed, it is an unfortunate reality of the world as we have made it that a very large number of the “local languages” spoken by aboriginal populations, which are of great interest to typologists, have no children learning them at all (Hale, Krauss et al. (shrink)

Articulate language is a form of communication unique to humans. Over time, a spectrum of researchers has proposed various frameworks attempting to explain the evolutionary acquisition of this distinctive human attribute, some deploring the apparent lack of direct evidence elucidating the phenomenon, whilst others have pointed to the contributions of palaeoanthropology, the social brain hypothesis and the fact that even amongst contemporary humans, social group sizes reflect brain size. Theologians have traditionally ignored evolutionary insights as an explanatory (...) paradigm for the origin of humankind. However, an increasing number are, of late, contributing to a worldview of humanity which accommodates both the epistemological realities of evolutionary biology as well as insights from theology. This includes reviewing and assessing the origins of articulate language and the physiological attributes necessary for its development. It is in this sense that the evolution of language is relevant from a theological perspective. The association between mental capacity and articulate language, already noted by Darwin, is relevant in explaining the larger group sizes found amongst humans, as is the incipient role played by the evolution of laughter in triggering the neuroendocrine system promoting bonding, to the eventual development of articulate language. Our aim is to review a selection of contemporary perspectives on the evolution of language, amongst others, reasons for the ease with which young children acquire language competency, and whether we may be hardwired for language from birth. Further reading is suggested in the footnotes.Contribution: This article is part of a special collection reflecting on the evolutionary building blocks of our past, present and future. It is based on historical thought and contemporary research with regards to the evolutionary emergence of language. It fits well with the intersectional and trans-disciplinary nature of this collection and journal. (shrink)

Mental-content verbs such as think, believe, imagine and hope seem to pose special problems for the young language learner. One possible explanation for these diYculties is that the concepts that these verbs express are hard to grasp and therefore their acquisition must await relevant conceptual development. According to a diVerent, perhaps complementary, proposal, a major contributor to the diYculty of these items lies with the informational requirements for identifying them from the contexts in which they appear. The experiments (...) reported here explore the implications of these proposals by investigating the contribution of observational and linguistic cues to the acquisition of mental predicate vocabulary. We Wrst demonstrate that particular observed situations can be helpful in prompting reference to mental contents, speciWcally, contexts that include a salient and/or unusual mental state such as a false belief. We then compare the potency of such observational support to the reliability of alternate or concomitant syntactic information (e.g., sentential complementation) in tasks where both children and adults are asked to hypothesize the meaning of novel verbs. The Wndings support the eYcacy of false belief situations for increasing the saliency of mental state descriptions, but also show that.. (shrink)

Following much work in linguistic theory, it is hypothesized that the language faculty has a modular structure and consists of two basic components, a lexicon of (structured) entries and a computational system of combinatorial operations to form larger linguistic expressions from lexical entries. This target article provides evidence for the dual nature of the language faculty by describing recent results of a multidisciplinary investigation of German inflection. We have examined: (1) its linguistic representation, focussing on noun plurals and (...) verb inflection (participles), (2) processes involved in the way adults produce and comprehend inflected words, (3) brain potentials generated during the processing of inflected words, and (4) the way children acquire and use inflection. It will be shown that the evidence from all these sources converges and supports the distinction between lexical entries and combinatorial operations. (shrink)

This paper explores a variety of different versions of the thesis that natural language is involved in human thinking. It distinguishes amongst strong and weak forms of this thesis, dismissing some as implausibly strong and others as uninterestingly weak. Strong forms dismissed include the view that language is conceptually necessary for thought (endorsed by many philosophers) and the view that language is _de facto_ the medium of all human conceptual thinking (endorsed by many philosophers and (...) social scientists). Weak forms include the view that language is necessary for the acquisition of many human concepts, and the view that language can serve to scaffold human thought processes. The paper also discusses the thesis that language may be the medium of _conscious_ propositional thinking, but argues that this cannot be its most fundamental cognitive role. The idea is then proposed that natural language is the medium for non-domain-specific thinking, serving to integrate the outputs of a variety of domain-specific conceptual faculties (or central-cognitive ‘quasi-modules’). Recent experimental evidence in support of this idea is reviewed, and the implications of the idea are discussed, especially for our conception of the architecture of human cognition. Finally, some further kinds of evidence which might serve to corroborate or refute the hypothesis are mentioned. The overall goal of the paper is to review a wide variety of accounts of the cognitive function of natural language, integrating a number of different kinds of evidence and theoretical consideration in order to propose and elaborate the most plausible candidate. (shrink)

This book explores issues at the core of modern linguistics and cognitive science. Why are all languages similar in some ways and in others utterly different? Why do languages change and change variably? How did the human capacity for language evolve, and how far did it do so as an innate ability? Simon Kirby looks at these questions from a broad perspective, arguing that they can be studied together. The author begins by examining how far the universal properties (...) of language may be explained by examining the way it is used, and how far by the way it is structured. He then considers what insights may be gained by combining functional and formal approaches. In doing so he develops a way of treating language as an adaptive system, in which its communicative and formal roles are both crucial and complementary. In order to test the effectiveness of competing theories and explanations, Simon Kirby develops computational models to show what universals emerge given a particular theory of language use or acquisition. He presents here both the methodology and the results. Function, Selection, and Innateness is important for its argument, its methodology, and its conclusions. It is a powerful demonstration of the value of looking at language as an adaptive system and goes to the heart of current debates on the evolution and nature of language. (shrink)

This paper focuses on the process of language acquisition in childhood. Departing from accounts—such as that of Jean Piaget, which considers cognitive development as the main condition of language acquisition—Taylor shows how deeply our linguistic capacity is rooted in a prior socio-affective realm of social spaces or communion. Beyond Taylor, the question arises as to whether one can identify different normative consequences for pedagogical practices, as well as for the status of childhood in social theory. The (...) implications of Taylor’s language theory for the relation between human and world will be suggested by connecting the intrinsic dimensions of linguistic communication to the theory of resonance.Ce commentaire traite du processus d’acquisition du langage pendant l’enfance. À la différence de Jean Piaget, qui considère le développement cognitif comme la principale condition permettant l’acquisition du langage, Taylor montre combien notre capacité linguistique est ancrée dans un espace socio-affectif, ou une communion, qui lui est antérieur. Au-delà de Taylor, cette différence soulève la question de ses conséquences normatives sur les pratiques pédagogiques ainsi que sur le statut de l’enfance dans la théorie sociale. En reliant les dimensions intrinsèques de la communication langagière à la théorie de la résonance, je proposerai certaines implications de la théorie du langage de Taylor pour la relation de l’être humain au monde. (shrink)

Ecological developmental biology considers the phenotype as actively produced through an environmentally informed process of individual development, rather than predetermined by the genotype. Accordingly, the genotype is viewed as one among many interactants that contribute formative elements; it is understood to do so no differently from the way other organism-internal and environmental resources do. Although the EcoDevo approach is evidently particularly apt to inform approaches to human development, which mostly takes shape in rich cultural environments, it is remarkable that, (...) at least within some highly influential circles of the linguistic sciences, the study of many distinctive human cognitive traits including language remains strongly anchored to a preformationist stance. This article brings an EcoDevo approach to the biologically focused study of language to argue that an aspect of language design commonly assumed to be “blueprinted,” namely, the lexicon-syntax interface, may instead be explained as a plastic effect of ongoing developmental processes in the mind of the child, in which designated aspects of the environment fulfill a key constructive role. (shrink)

Species evolve, very slowly, through selection of genes which give rise to phenotypes well adapted to their environments. The cultures, including the languages, of human communities evolve, much faster, maintaining at least a minimum level of adaptedness to the external, non- cultural environment. In the phylogenetic evolution of species, the transmission of information across generations is via copying of molecules, and innovation is by mutation and sexual recombination. In cultural evolution, the transmission of information across generations is by learning, (...) and innovation is by sporadic invention or borrowing from other cultures. This much is the foundational bedrock of evolutionary theory. But things get more complicated; there can be gene-culture co-evolution. Prior to the rise of culture, the physical environment is the only force shaping biological evolution from outside the organism, and cultures themselves are clearly constrained by the evolved biological characteristics of their members. But cultures become part of the external environment, and influence the course of biological evolution. For example, altruistic cultures with developed medical knowledge reduce the cost to the individual of carrying genes disposing to certain pathologies (such as diabetes); and such genes become more widespread in the populations maintaining such cultures. Assortative mating can affect biological evolution, and particular cultures may influence the factors which are sorted for in mating. (For a careful discussion of the effects of cultural evolution on natural selection, see Cavalli-Sforza and Bodmer, 1971:774- 804). This paper examines mechanisms involved in the co-evolution of a biological trait, the critical period for language acquisition, and a property of human cultures, the size of their languages. A gene/culture interaction will be shown that can be described as a kind of symbiosis, but perhaps more aptly as an `arms race'. In this introduction, we will sketch the basic mechanics of the interaction in very broad terms; the rest of the paper will explain and justify the details. The implications of our model for second language acquisition are given toward the end of the paper. (shrink)

Theory of Mind (ToM) is the cognitive achievement that enables us to report our propositional attitudes, to attribute such attitudes to others, and to use such postulated or observed mental states in the prediction and explanation of behavior. Most normally developing children acquire ToM between the ages of 3 and 5 years, but serious delays beyond this chronological and mental age have been observed in children with autism, as well as in those with severe sensory impairments. We examine data from (...) studies of ToM in normally developing children and those with deafness, blindness, autism and Williams syndrome, as well as data from lower primates, in a search for answers to key theoretical questions concerning the origins, nature and representation of knowledge about the mind. In answer to these, we offer a framework according to which ToM is jointly dependent upon language and social experience, and is produced by a conjunction of language acquisition with children's growing social understanding, acquired through conversation and interaction with others. We argue that adequate language and adequate social skills are jointly causally sufficient, and individually causally necessary, for producing ToM. Thus our account supports a social developmental theory of the genesis of human cognition, inspired by the work of Sellars and Vygotsky. How are we to decide whether to take reason to be an essentially private thing that can, however, turn on a public display when it chooses to do so, or, like conversing, to be an essentially social skill, which can, however, be retained a while through periods of solitary confinement? (Annette Baier, The Commons of the Mind, p. 5). The squirrel does not infer by induction that it is going to need stores next winter as well (Wittgenstein, On Certainty§ 287). The problem of thought and language thus extends beyond the limits of natural science and becomes the focal problem of historical human psychology, i.e. of social psychology. Consequently, it must be posed in a different way (Vygotsky, Thought and Language, p. 51). From the very first days of the child's development his activities acquire a meaning of their own in a system of social behaviour and, being directed towards a definite purpose, are refracted through the prism of the child's environment. The path from object to child and from child to object passes through another person. This complex human structure is the product of a developmental process deeply rooted in the links between individual and social history (Vygotsky, Mind in Society, p. 30). (shrink)

In his theoretical essays on language, Walker Percy criticizes contemporary linguistics for overlooking the deep, existential impact that language acquisition has on human life. This acquisition, for Percy, radically transforms the human being’s mode of existence. With the acquisition of language, the world and our role in it change. The meaning of the world comes to be revealed through the ongoing life of human discourse: through books, conversations, philosophical inquiry, and so (...) on. This chapter clarifies and elaborates on Percy’s critique by showing how it arises as a central insight in twentieth-century German phenomenology, particularly in the later work of Martin Heidegger and in the hermeneutic phenomenology of Heidegger’s student, Hans-Georg Gadamer. (shrink)

The last two centuries have been the centuries of the discovery of the cell evolution: in the XIX century of the germinal cells and in the XX century of two groups of somatic cells, namely those of the brain-mind and of the immune systems. Since most cells do not behave in this way, the evolutionary character of the brain-mind and of the immune systems renders human beings formed by two different groups of somatic cells, one with a deterministic (...) and another with an indeterministic (say Darwinian) behavior. An inherent consequence is that of the generation, during ontogenesis, of a dual biological identity. The concept of the dual biological identity may be used to explain the Kantian concept of the two metaphysical worlds, namely of the causal necessity and of the free will (Azzone, 2001). Two concepts, namely those of complex adaptive systems (CAS) and of emergence (Holland, 2002), are useful tools for understanding the mechanisms of adaptation and of evolution. The concept of complex adaptive systems indicates that living organisms contain series of stratified components, denoted as building blocks, forming stratified layers of increasing complexity. The concept of emergence implies the use of repeating patterns and of building blocks for the generation of structures of increasing levels of complexity, structures capable of exchanging communications both in the top-down and in the bottom-up direction. Against the concept of emergence it has been argued that nothing can produce something which is really new and endowed of causal efficacy. The defence of the concept of emergence is based on two arguments. The first is the interpretation of the variation-selection mechanism as a process of generation of information and of optimization of free energy dissipation in accord with the second principle of thermodynamics. The second is the objective evidence of the cosmological evolution from the Big Bang to the human mind and its products. Darwin has defended the concept of the continuity of evolution. However evolution should be considered as continuous when there is no increase of information and as discontinuous when there is generation of new information. Examples of such generation of information are the acquisition of the innate structures for language and the transition from absence to presence of morality. There are several discontinuity thresholds during both phylogenesis and ontogenesis. Morality is a relational property dependent on the interactions of human beings with the environment. Piaget and Kohlberg have shown that the generation of morality during childhood occurs through several stages and is accompanied by reorganization of the child mental organization. The children respect the conventions in the first stage and gradually generate their autonomous morality. The transition from absence to presence of morality, a major adaptive process, then, not only has occurred during phylogenesis but it occurs again in every human being during ontogenesis. The religious faith does not provide a logical justification of the moral rules (Ayala, 1987) but rather a psychological and anthropological justification of two fundamental needs of human beings: that of rendering Nature an understandable entity, and that of increasing the cooperation among members of the human societies. The positive effects of the altruistic genes in the animal societies are in accord with the positive effects of morality for the survival and development of the human societies. (shrink)

Theory of Mind is the cognitive achievement that enables us to report our propositional attitudes, to attribute such attitudes to others, and to use such postulated or observed mental states in the prediction and explanation of behavior. Most normally developing children acquire ToM between the ages of 3 and 5 years, but serious delays beyond this chronological and mental age have been observed in children with autism, as well as in those with severe sensory impairments. We examine data from studies (...) of ToM in normally developing children and those with deafness, blindness, autism and Williams syndrome, as well as data from lower primates, in a search for answers to key theoretical questions concerning the origins, nature and representation of knowledge about the mind. In answer to these, we offer a framework according to which ToM is jointly dependent upon language and social experience, and is produced by a conjunction of language acquisition with children's growing social understanding, acquired through conversation and interaction with others. We argue that adequate language and adequate social skills are jointly causally sufficient, and individually causally necessary, for producing ToM. Thus our account supports a social developmental theory of the genesis of human cognition, inspired by the work of Sellars and Vygotsky.How are we to decide whether to take reason to be an essentially private thing that can, however, turn on a public display when it chooses to do so, or, like conversing, to be an essentially social skill, which can, however, be retained a while through periods of solitary confinement? .The squirrel does not infer by induction that it is going to need stores next winter as well .The problem of thought and language thus extends beyond the limits of natural science and becomes the focal problem of historical human psychology, i.e. of social psychology. Consequently, it must be posed in a different way .From the very first days of the child's development his activities acquire a meaning of their own in a system of social behaviour and, being directed towards a definite purpose, are refracted through the prism of the child's environment. The path from object to child and from child to object passes through another person. This complex human structure is the product of a developmental process deeply rooted in the links between individual and social history. (shrink)

The fact that all languages known are digital poses the question of their origin. The answer developed here treats language as the interface of information theory and molecular development by showing previously unrecognized isomorphisms between the analog and digital features of language and life at the molecular level. Human language is a special case of signal transduction and hence is subject to the coding aspects of Shannon's theorems and the analog aspects of pattern recognition, each represented (...) by genotype and phenotype. Digital language acquisition is late in evolution and postnatal development and requires a neural reorganization by a mechanism of somatic network programming in response to the environment. Such a mechanism would solve the Chomsky conundrum of how children can learn any language without knowing rules of grammar too numerous to be encoded genotypically. BioEssays 25:489–500, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

Many people have argued that the evolution of the human language faculty cannot be explained by Darwinian natural selection. Chomsky and Gould have suggested that language may have evolved as the by-product of selection for other abilities or as a consequence of as-yet unknown laws of growth and form. Others have argued that a biological specialization for grammar is incompatible with every tenet of Darwinian theory – that it shows no genetic variation, could not exist in any (...) intermediate forms, confers no selective advantage, and would require more evolutionary time and genomic space than is available. We examine these arguments and show that they depend on inaccurate assumptions about biology or language or both. Evolutionary theory offers clear criteria for when a trait should be attributed to natural selection: complex design for some function, and the absence of alternative processes capable of explaining such complexity. Human language meets these criteria: Grammar is a complex mechanism tailored to the transmission of propositional structures through a serial interface. Autonomous and arbitrary grammatical phenomena have been offered as counterexamples to the position that language is an adaptation, but this reasoning is unsound: Communication protocols depend on arbitrary conventions that are adaptive as long as they are shared. Consequently, language acquisition in the child should systematically differ from language evolution in the species, and attempts to analogize them are misleading. Reviewing other arguments and data, we conclude that there is every reason to believe that a specialization for grammar evolved by a conventional neo-Darwinian process. (shrink)

The starting point of Joseph Margolis' last philosophical effort is represented by the problem of the human "gap" in animal continuity: "There appear to be no comparable variants of animal evolution [...] effected by anything like the culturally enabled creation". While we share with other animals more or less refined forms of societal life, acquiring a natural language remains a distinctively human character: although it is grounded in the completely natural favourable changes in the human vocal (...) apparatus and brain, the merely causal emergence of language in humans reacts back into human primates by transforming them into persons or selves. The artifactuality of persons appears to be at the same time a natural and emergent phenomenon, constituting the other side of the process of language acquisition both by early hominids and by human infants. In this perspective the largely informal, mongrel and approximate functionality of ordinary language is interpreted as a good tool for the cultural animal to cope with the world, while the collective dimension of human forms of life appears as the shared context of external and internal constitution of the human selves. (shrink)

This article considers natural signs and their role in the origin of language. Natural signs, sometimes called primary signs, are connected with their signified by causal relationships, concomitance, or likeliness. And their acquisition is directed by both objective reality and past experience (memory). The discovery and use of natural signs is a required prerequisite of existence for any living systems because they are indispensable to movement, the search for food, regulation, communication, and many other information-related activities. It is (...) argued that the birth of conventional signs, sometimes called secondary signs, was determined by a connotative use of natural signs and that, regulated and maintained by them, human language developed. At the same time, the origin and development of human language presupposes a ‘rational turn’ from the given and external reality of natural signs to the rationally constructed reality of artificial signs and rules that are internally maintained by the subjects’ deliberate activities, and actual and inherited social tradition (social memory). In view of this, language is defined as a dynamic system that must both be natural and artificial, empirical and a priori, inductive and deductive. This bilateral origin and regulation of language is the dual-inference of language. (shrink)

Debating on Second Language Acquisition is not merely in terms of concept but also the real phenomena which postulate each research result. It needs more investigation on SLA due to the various realities on how children and adults acquire and learn any language. This research aims to describe how children and adults acquire and learn their first and second language. Participants consisted of children and adults whose ages determined by the researcher based on the purposive sampling (...) technique. They were all six persons and chosen based on certain characteristics. Content analysis technique was applied in order to analyze all data gained. The result showed that since human alive inside mother’s womb especially at up to the age of three months, a fetus has tried to acquire sounds subconsciously. Language proficiency is really determined by three factors of Phased Process Approach namely Subconscious Acquisition, Conscious Acquisition, and Learning. The ideal time for learning something is begun from the age of 2 or 3 years old, by the fact that children have had the ability to bear a meaning on any input that they catch. The learning process has been begun within the process of acquisition. Based on the findings, it is clear that the children acquire the language step by step based on the development of the brain. Children acquire language is just the same as adult in acquiring the language although there will be some constraints faced by adult concern with the first language because adult has had the strong basis of the first language just than children. (shrink)

Philosophers are often beholden to a picture of language as a largely static, well-defined structure which is handed over from generation to generation by an arduous process of learning: language, on this view, is something that we are given, and that we can make use of, but which we play no significant role in creating ourselves. This picture is often maintained in conjunction with the idea that several distinctively human cognitive capacities could only develop via the (...) class='Hi'>language acquisition process, as thus understood. This paper argues that the phenomenon of homesign, i.e., spontaneous gesture systems devised by deaf children for the purpose of communicating with their non-signing peers, can shed valuable empirical light on these convictions. Contrary to grounding assumptions of Wittgensteinian, Gricean, and Peircean approaches to language, homesign shows how core properties of language—including semantic properties—can be built from the ground up in idiosyncratic ways to serve the communicative needs of individuals. (shrink)

Human languages vary in many ways but also show striking cross-linguistic universals. Why do these universals exist? Recent theoretical results demonstrate that Bayesian learners transmitting language to each other through iterated learning will converge on a distribution of languages that depends only on their prior biases about language and the quantity of data transmitted at each point; the structure of the world being communicated about plays no role (Griffiths & Kalish, , ). We revisit these findings and (...) show that when certain assumptions about the relationship between language and the world are abandoned, learners will converge to languages that depend on the structure of the world as well as their prior biases. These theoretical results are supported with a series of experiments showing that when human learners acquire language through iterated learning, the ultimate structure of those languages is shaped by the structure of the meanings to be communicated. (shrink)

Children learn their native language by exposure to their linguistic and communicative environment, but apparently without requiring that their mistakes be corrected. Such learning from “positive evidence” has been viewed as raising “logical” problems for language acquisition. In particular, without correction, how is the child to recover from conjecturing an over-general grammar, which will be consistent with any sentence that the child hears? There have been many proposals concerning how this “logical problem” can be dissolved. In this (...) study, we review recent formal results showing that the learner has sufficient data to learn successfully from positive evidence, if it favors the simplest encoding of the linguistic input. Results include the learnability of linguistic prediction, grammaticality judgments, language production, and form-meaning mappings. The simplicity approach can also be “scaled down” to analyze the learnability of specific linguistic constructions, and it is amenable to empirical testing as a framework for describing human language acquisition. (shrink)

Historical language change (), like evolution itself, is a fact; and its implications for the biological evolution of the human capacity for language acquisition () have been ably explored by many contemporary theorists. However, Christiansen & Chater's (C&C's) revolutionary call for a replacement of phylogenetic models with glossogenetic cultural models is based on an inadequate understanding of either. The solution to their lies before their eyes, but they mistakenly reject it due to a supposed Gene/;culture co-evolution (...) poses a series of difficult theoretical and empirical problems that will be resolved by subtle thinking, adequate models, and careful cross-disciplinary research, not by oversimplified manifestos. (shrink)

Gardner’s theory of multiple intelligences has been further developed to focus on the research of human cognitive activities. Thus, the concept of emotional intelligence, which is the topic of the current paper, was introduced by John D. Mayer, Peter Salovey and ‎Daniel Goleman. General intelligence can be defined as the capacity to carry out abstract reasoning to understand meanings, to recognize the similarities and differences between two concepts and to make generalizations. Emotional intelligence is not a part of general (...) intelligence. Emotional intelligence can be defined as an ability of a human to perceive oneself and interact with others with the help of obtained and processed emotional information. Language acquisition is mediated by the necessity to communicate with others. Consequently, the ability to manage the process of communication is of utmost importance in learning a language. Virtual learning environment reduces dramatically the immediate interaction of the participants of the process of education. It undoubtedly affects the process of acquisition and demands to reconsider the distribution of different learning activities. (shrink)

Four modes of language acquisition and communication are presented translating ancient Indian expressions on human consciousness, mind, their form, structure and function clubbing with the Sabdabrahma theory of language acquisition and communication. The modern scientific understanding of such an insight is discussed. . A flowchart of language processing in humans will be given. A gross model of human language acquisition, comprehension and communication process forming the basis to develop software for relevantmind-machine (...) modeling will be presented. The implications of such a model to artificial intelligence and cognitive sciences will be discussed. The essential nature and necessity of a physics, communication engineering , biophysical and biochemical insight as both complementary and supplementary to using mathematical and computational methods in delineating the theory of language processing in humans is put forward. (shrink)

A biophysical and biochemical perspective of Brahmajnaana will be advanced by viewing Upanishads and related books as “Texts of Science on human mind”. A biological and cognitive science insight of Atman and Maya, the results of breathing process; constituting and responsible for human consciousness and mental functions will be developed. The Advaita and Dvaita phases of human mind, its cognitive and functional states will be discussed. These mental activities will be modeled as brain-wave modulation and demodulation processes. (...) The energy-forms and their transformations as ideas/moods/experiences/thoughts/feelings/utterances/knowing/perception/experience/mood; and a theory of human cognition and communication will be advanced. The sameness of these and processes taking place and steps involved in human language acquisition and communication processes will be highlighted taking ideas from Sabdabrahma Siddhanta and Sphota Vaada, for which the basis is Brahmajnaana only. In fine, a physiological psychological and neurological model of human consciousness and function of mind based on Indian spiritual thought will be derived and discussed using concepts from modern science and technology. The application of these derivations in the fields of physiological psychology, mind-machine modeling, natural language comprehension branch of artificial intelligence and neurology to model and imitate human mental functions will be hinted. -/- . (shrink)

Rhythm is key to language acquisition. Across languages, rhythmic features highlight fundamental linguistic elements of the sound stream and structural relations among them. A sensitivity to rhythmic features, which begins in utero, is evident at birth. What is less clear is whether rhythm supports infants' earliest links between language and cognition. Prior evidence has documented that for infants as young as 3 and 4 months, listening to their native language supports the core cognitive capacity of object (...) categorization. This precocious link is initially part of a broader template: listening to a non-native language from the same rhythmic class as and to vocalizations of non-human primates provide English-acquiring infants the same cognitive advantage as does listening to their native language. Here, we implement a machine-learning approach to ask whether there are acoustic properties, available on the surface of these vocalizations, that permit infants' to identify which vocalizations are candidate links to cognition. We provided the model with a robust sample of vocalizations that, from the vantage point of English-acquiring 4-month-olds, either support object categorization or fail to do so. We assess whether supervised ML classification models can distinguish those vocalizations that support cognition from those that do not, and which class of acoustic features best support that classification. Our analysis reveals that principal components derived from rhythm-relevant acoustic features were among the most robust in supporting the classification. Classifications performed using temporal envelope components were also robust. These new findings provide in principle evidence that infants' earliest links between vocalizations and cognition may be subserved by their perceptual sensitivity to rhythmic and spectral elements available on the surface of these vocalizations, and that these may guide infants' identification of candidate links to cognition. (shrink)

Sabdabrahma Siddhanta, popularized by Patanjali and Bhartruhari will be scientifically analyzed. Sphota Vada, proposed and nurtured by the Sanskrit grammarians will be interpreted from modern physics and communication engineering points of view. Insight about the theory of language and modes of language acquisition and communication available in the Brahma Kanda of Vakyapadeeyam will be translated into modern computational terms. A flowchart of language processing in humans will be given. A gross model of human language (...) acquisition, comprehension and communication process forming the basis to develop software for relevant mind-machine modeling will be presented. The implications of such a model to artificial intelligence and cognitive sciences will be discussed. The essentiality and necessity of a physics, communication engineering , biophysical and biochemical insight as both complementary and supplementary to using mathematical and computational methods in delineating the theory of Sanskrit language is put forward. Natural language comprehension as distinct and different from natural language processing is pointed out. (shrink)

Opinions have varied wildly as to whether the roots of language run extremely deep in the human lineage, or, alternatively, whether this unprecedented capacity is a recent acquisition. The question has been exacerbated by the fact that language itself does not preserve, so that its possession by earlier hominids has had to be inferred from indirect material proxies. Here I argue that while most technological putative proxies from the Paleolithic are certainly evidence of highly complex cognitive (...) states among our precursors, virtually none of them can reliably be taken as witness to the specific symbolic cognitive style that human beings share today—and with which language is intricately intertwined. Symbolic reasoning can only be confidently inferred from explicitly symbolic objects. These latter only became integral to hominid societies within the tenure of anatomically modern Homo sapiens, and their appearance marked an extreme inflection in the tempo of change as seen in the archaeological record. I thus suggest that the neural capacity for symbolic reasoning and language was acquired during the major developmental reorganization that gave rise to the highly anatomically distinctive H. sapiens some 200 thousand years ago, but that that the new potential was not exploited until about 100 thousand years later, when it was released by what was necessarily a cultural stimulus. Most probably, this stimulus was the spontaneous invention of externalized structured language. This brings the origin of language into the realm of exaptation and emergence—both of them familiar evolutionary phenomena requiring no special explanation—and excludes the long-term fine-tuning of language and human reasoning by natural selection. (shrink)

In order for artificial intelligent systems to interact naturally with human users, they need to be able to learn from human instructions when actions should be imitated. Human tutoring will typically consist of action demonstrations accompanied by speech. In the following, the characteristics of human tutoring during action demonstration will be examined. A special focus will be put on the distinction between two kinds of motion events: path-oriented actions and manner-oriented actions. Such a distinction is inspired (...) by the literature pertaining to cognitive linguistics, which indicates that the human conceptual system can distinguish these two distinct types of motion. These two kinds of actions are described in language by more path-oriented or more manner-oriented utterances. In path-oriented utterances, the source, trajectory, or goal is emphasized, whereas in manner-oriented utterances the medium, velocity, or means of motion are highlighted. We examined a video corpus of adult–child interactions comprised of three age groups of children—pre-lexical, early lexical, and lexical—and two different tasks, one emphasizing manner more strongly and one emphasizing path more strongly. We analyzed the language and motion of the caregiver and the gazing behavior of the child to highlight the differences between the tutoring and the acquisition of the manner and path concepts. The results suggest that age is an important factor in the development of these action categories. The analysis of this corpus has also been exploited to develop an intelligent robotic behavior—the tutoring spotter system—able to emulate children's behaviors in a tutoring situation, with the aim of evoking in human subjects a natural and effective behavior in teaching to a robot. The findings related to the development of manner and path concepts have been used to implement new effective feedback strategies in the tutoring spotter system, which should provide improvements in human–robot interaction. (shrink)

The overall claim of this dissertation is that nativism and naturalism are incompatible. Further, given the strength of the nativist arguments against their empirical counterparts, the way is open for an inductive argument for the existence of God. The particular species of nativism currently occupying the role of a dominant research program is linguistic nativism, the view that a grammar or a mental language is innately housed in the human mind. Thus, the argument will focus on showing that (...) the capacity of human beings to acquire natural languages provides evidence for the failure of naturalism and, in so doing, opens the way for a theistic research program. -/- In the first part of the argument in chapters two through four, I argue that nativism is incompatible with naturalism. Nativism is the view that there is something more than a general learning mechanism within the human mind prior to experience. Those things might be beliefs, concepts, or other domain-specific mechanisms. According to nativists, their innate presence in the mind explains the capacity, knowledge, or some other cognitive competence of human beings in their mature state. Nativists include Plato, Descartes, and Leibniz. In contrast, empiricists, including Aristotle, John Locke, and David Hume denied that there is much more than a general-purpose learning mechanism in the mind. They claimed that a combination of a general learning mechanism and the data available from the environment adequately explains the beliefs, concepts, and capacities we acquire. Historically, nativists could not postulate the presence of innate beliefs, concepts, or mechanisms without also embracing a form of non-naturalism. Consequently, most naturalists endorsed versions of empiricism proposed by Locke and Hume. -/- Just as there are nativists and empiricists about concepts and beliefs, there are nativists about language. Indeed, the problem of language acquisition—how a small child has the capacity to learn language—generated a revival in interest in nativism in the 1960s led by linguist, Noam Chomsky. Linguistic nativists claim that language acquisition is only possible if human beings possess certain capacities, structures, concepts, or beliefs. The two dominant nativists at the time were Noam Chomsky and Jerry Fodor. Chomsky proposed an innate Universal Grammar housed in a domain-specific device in the human brain. Fodor went much further and postulated that an entire language of thought is present in the human mind. Empiricists, on the other hand, claim that the linguistic data extant in the environment of a language learner combined with a general-purpose learning mechanism provides a sufficient explanation for language acquisition in humans. I argue that though nativist arguments against empiricism are at least sufficient to fend off empiricist objections, linguistic nativism turns out to be incompatible with naturalism. Thus, nativists ought to adopt a form of non-naturalism. The bulk of the dissertation will be spent defending this claim. -/- In the second part of the dissertation, I will argue that in place of naturalism, nativists ought to adopt theism. I will suggest that theism uniquely explains human linguistic capacities without facing problems that plague other forms of non-naturalism. Thus, the arguments for nativism turn out to be arguments for theism. Finally, I argue that the entailment does not go the other way. It is not the case that theism entails nativism. Instead, the theist is able to choose from a range of options. (shrink)

If human language must be squeezed through a narrow cognitive bottleneck, what are the implications for language processing, acquisition, change, and structure? In our target article, we suggested that the implications are far-reaching and form the basis of an integrated account of many apparently unconnected aspects of language and language processing, as well as suggesting revision of many existing theoretical accounts. With some exceptions, commentators were generally supportive both of the existence of the bottleneck (...) and its potential implications. Many commentators suggested additional theoretical and linguistic nuances and extensions, links with prior work, and relevant computational and neuroscientific considerations; some argued for related but distinct viewpoints; a few, though, felt traditional perspectives were being abandoned too readily. Our response attempts to build on the many suggestions raised by the commentators and to engage constructively with challenges to our approach. (shrink)

This collection of articles and associated discussion papers focuses on a problem that has attracted increasing attention from linguists and psychologists throughout the world during the past several years. Reduced to essentials, the problem is that of discovering the character of the mental capacities that make it possible for human beings to attain knowledge of their language on the basis of fragmentary and haphazard early linguistic experience. A fundamental assumption running through all of these contributions is that (...) people possess strong innate predispositions that are critical for success in this task. (shrink)

In this book, Luce Irigaray - philosopher, linguist, psychologist and psychoanalyst - proposes nothing less than a new conception of being as well as a means to ensure its individual and relational development from birth. Unveiling the mystery of our origin is probably what most motivates our quests and plans. Now such a disclosure proves to be impossible. Indeed we were born of a union between two, and we are forever deprived of an origin of our own. Hence our ceaseless (...) search for roots: in our genealogy, in the place where we were born, in our culture, religion or language. But a human being cannot develop starting from roots as a tree does, it must take on responsibility for its own being and existence without continuity with its origin and background. How can we succeed in doing that? First by cultivating our breathing, which is not only the means thanks to which we come into the world, but which also allows us to transcend mere survival towards a spiritual becoming. Taking on our sexuate belonging is the second element which makes us able to assume our natural existence. Indeed this determination at once brings us energy and provides us with a structure which contributes to our individuation and our relations with other living beings and the world. Our sexuation can also compensate for our absence of roots by compelling us to unite with the other sex so that we freely approach the copulative conjunction from which we were born; that is, the mystery of our origin. This does not occur through a mere sexual instinct or drive, but requires us to cultivate desire and love with respect for our mutual difference(s). In this way we become able to give rise to a new human being, not only at a natural but also at an ontological level. (shrink)

This article addresses a classical question: Can a machine use language meaningfully and if so, how can this be achieved? The first part of the paper is mainly philosophical. Since meaning implies intentionality on the part of the language user, artificial systems which obviously lack intentionality will be `meaningless'. There is, however, no good reason to assume that intentionality is an exclusively biological property and thus a robot with bodily structures, interaction patterns and development similar to those of (...) human beings would constitute a system possibly capable of meaning – a conjecture supported through a Wittgenstein-inspired thought experiment. The second part of the paper focuses on the empirical and constructive questions. Departing from the principle of epigenesis stating that during every state of development new structure arises on the basis of existing structure plus various sorts of interaction, a model of human cognitive and linguistic development is proposed according to which physical, social and linguistic interactions between the individual and the environment have their respective peaks in three consecutive stages of development: episodic, mimetic and symbolic. The transitions between these stages are qualitative, and bear a similarity to the stages in phylogenesis proposed by Donald and Deacon. Following the principle of epigenetic development, robotogenesis could possibly recapitulate ontogenesis, leading to the emergence of intentionality, consciousness and meaning. (shrink)

This paper describes many connections between the wisdom literature of the Ancient Greeks and the work of contemporary scholars, intellectuals and professionals in many fields. Whether or not they use the word nous to refer to the highest power of the human soul, I show that their views converge on the existence of such a power. The paper begins with a brief summary of Greek educational texts, including Greek mythology, Homer, tragedy, and Plato’s dialogues, showing that they are designed (...) to educate the power of mind. Usually without realizing it, many later schools of thought can be shown to come to conclusions that are consistent with the insights of one school of thought or cultural practice among the Ancient Greeks. Many other ancient cultures also had a holistic view of the cosmos, the human soul, and the best human life. (shrink)

Referring to entities is one of the key functions of language; learning to understand and use the relevant referential expressions is one of children’s major linguistic achievements. The 13 chapters of this volume bring together a wealth of information on the acquisition of referential processes in infants, pre-schoolers and school-age children drawing on data from more than 25 languages ranging from Italian to Inuktitut, and from Norwegian to Turkish. This book presents the state-of-the-art of corpus and experimental research (...) on the acquisition of reference. The breadth of aspects of referential acquisition will make the volume appealing to a wide audience of researchers, including linguists and psycholinguists working on phonological, morpho-syntactic, and discourse-pragmatic aspects of language development. The cross-linguistic perspective adopted by several of the contributors will be of particular interest to researchers investigating the relevance of typological differences. The state-of-the-art approach makes the research accessible to specialist and non-specialist researchers alike, and will provide an invaluable resource for graduate-level courses. (shrink)

With regard to the new directions in the Humanities, here I am going to consider and examine the approach of al-Farabi as a medieval thinker in introducing a new outlook to “language” in difference with the other views. Thereby, I will explore his challenges in the frame of “philosophical humanism” as a term given by Arkoun (1970) and Kraemer (1984) to the humanism of the Islamic philosophers and their circles, mainly in the tenth and eleventh centuries. Al-Farabi’s conception of (...) philosophical humanism, in which philosophy is thick and religion is thin, makes its agony with the other versions of humanism and also orthodox Islam. It means that his introduction of a humanistic understanding of language should be placed in such a multi-level contested environment. According to al-Farabi, language as a universal category has relation with reason that logic should function as its proper instrument. As a result, there is no specific privileged predetermined language, but the position of any language is shaped by its relation with human reason and formal logic that is something human-made. And such a conception means language in human terms. Key Terms: Al-Farabi; Language; Philosophical Humanism; Arabic: Greek . (shrink)

The opposition in which many phenomenologists of religion stand to the above remarks is clear. Religious consciousness of the world, in being tied to the language of a particular faith, requires conceptual mastery for its emergence. Linguistic and non-linguistic skills in the use of concepts must be developed through fledgling attempts and repeated practice. In noticing this, attention has been called to the fact that such consciousness is far from being man's natural inheritance. It is acquired through instruction and (...) learning, and the concepts which generate Christian consciousness of the world make demands upon a person which go straight against his grain. Using the Christian concepts as tools in handling the various situations along life's way requires strenuous and repeatedly renewed effort. There remains a certain Christian distance from ordinary ways of doing commerce with the world. The way, after all, is said to be narrow. So to become conscious of the world in a Christian manner is to submit oneself to the rigors of the concepts. It is to permit one's life to be guided and ruled thereby in his regard for the world.In making these observations, it becomes clear, too, that the Christian life and consciousness is one in which a man chooses to be enmeshed. It is a matter of human decision. In so choosing, a man makes his life determinate; he gives it shape. The specificity or concreteness demanded in and with the language of faith should be contrasted with the rather diffuse and indeterminate character of the religious awareness thought to be so deep and abiding by phenomenologists. Because of its lack of particularity in contour, this notion of religious consciousness is virtually inconsequential. That which is increasingly common to all men begins to wane in significance within the life of the single individual. Comparatively speaking, the choice to reduplicate Christian avenues of thinking and acting is replete with ramifications and differences which are clearly discernible. By virtue of the specificity required, however, it is also the case that one must renew that decision daily, seek to nurture it, train and discipline himself in it. Making the faith one's own, abiding in it day and night--these lead down different pathways. But the distinctive patterns of living and thinking add up after a while with a cumulative effect. Through the acquisition and practice in exercising'Christian concepts, one earns a consciousness of the world which is Christian in scope and nature. (shrink)

What is the place of language in human cognition? Do we sometimes think in natural language? Or is language for purposes of interpersonal communication only? Although these questions have been much debated in the past, they have almost dropped from sight in recent decades amongst those interested in the cognitive sciences. Language and Thought is intended to persuade such people to think again. It brings together essays by a distinguished interdisciplinary team of philosophers and psychologists, (...) who discuss various ways in which language may be implicated in human cognition. The editors have provided an introduction which lays out the basic terms and history of the debate, and a consolidated bibliography which will provide a valuable reference resource for all those interested in this area. The volume will be of great interest to all researchers and students interested in language and its place in cognition. (shrink)

People with Down syndrome often exhibit deficiencies in wayfinding activities, particularly route learning (e.g., Courbois et al., 2013 ; Davis et al., 2014 ; Farran et al., 2015 ). Evidence concerning more sophisticated survey learning has been sparse. In the research reported here, two experiments are reported that evaluated survey learning of youth with DS and typically developing children (TD) matched on mental age. In Experiment 1, participants learned two overlapping routes consisting of three turns each through a virtual environment (...) depicting 9 square city blocks. Following acquisition, they were tested on multiple measures of survey knowledge: finding a shortcut, identifying the direction of landmarks not currently visible from their location in the environment, and recognizing a bird’s-eye representation of the overall environment. Under these conditions, which should provide relatively optimal opportunities for survey learning, the participants with DS performed comparably to TD participants matched on non-verbal ability on all of our measures of survey learning. Hence, we concluded that people with DS can acquire some survey knowledge when tasked with learning a small environment and given the opportunity to do so. In Experiment 2, the experimenter navigated participants through a large, relatively complex, virtual environment along a circuitous path, beginning and ending at a target landmark. Then, the participants were placed at a pre-specified location in the environment that they had viewed previously and instructed to navigate to the same target (a door) using the shortest possible path from their current location. They completed the task three times: once after being shown the environment one time, once after three exposures, and once after five exposures. Results indicated that the participants with DS exhibited significantly less skill at identifying the shortcut than did the TD participants, with differences emerging as the number of exposures increased. Participants with DS were also less able to recall landmarks at the end of the experiment. Overall, however, the performance of both groups was relatively poor in both experiments – with the performance of participants with DS being worse as conditions became less optimal. These results were discussed in terms of underlying mechanisms that may account for variations in survey learning as environmental complexity increases. (shrink)