This paper explores the mechanisms of and motivations for two unconventional comparative constructions in Mandarin: [bi Ni hai Ni] and [bi Ni hai Nj]. They are unconventional in that the item expressing the dimension along which the comparison is made is a noun rather than an adjective. It is shown that [bi Ni hai Ni] emerges (i) by analogy with the conventional comparative construction [bi N hai A] and (ii) by inheriting the nominal feature from an existing construction [Adverb N], (...) which is corroborated by a collexeme analysis. At a more schematic level, the extension A > N observed in [bi N hai A] > [bi Ni hai Ni] may have been modeled on the existing development from [Adverb A] to [Adverb N]. Analogical extension and inheritance also underlie the subsequent development from [bi Ni hai Ni] to [bi Ni hai Nj]. This study not only shows how language changes in a constructional network (including node creation and network reconfiguration), but also sheds light on the nature of horizontal links. It also demonstrates how a synchronically perceived relation between constructions may impact a later, similar language change. (shrink)

Language Change in the Wake of Empire: Syriac in Its Greco-Roman Context. By Aaron Michael Butts. Linguistic Studies in Ancient West Semitic, vol. 11. Winona Lake, IN: Eisenbrauns, 2016. Pp. xvii + 292. $59.50.

Bayesian probability is normally defined over a fixed language or eventspace. But in practice language is susceptible to change, and thequestion naturally arises as to how Bayesian degrees of belief shouldchange as language changes. I argue here that this question poses aserious challenge to Bayesianism. The Bayesian may be able to meet thischallenge however, and I outline a practical method for changing degreesof belief over changes in finite propositional languages.

Previous studies provided evidence for a connection between language processing and language change. We add to these studies with an exploration of the influence of lexical-distributional properties of words in orthographic space, semantic space, and the mapping between orthographic and semantic space on the probability of lexical extinction. Through a binomial linear regression analysis, we investigated the probability of lexical extinction by the first decade of the twenty-first century (2000s) for words that existed in the first decade (...) of the nineteenth-century (1800s) in eight data sets for five languages: English, French, German, Italian, and Spanish. The binomial linear regression analysis revealed that words that are more similar in form to other words are less likely to disappear from a language. By contrast, words that are more similar in meaning to other words are more likely to become extinct. In addition, a more consistent mapping between form and meaning protects a word from lexical extinction. A nonlinear time-to-event analysis furthermore revealed that the position of a word in orthographic and semantic space continues to influence the probability of it disappearing from a language for at least 200 years. Effects of the lexical-distributional properties of words under investigation here have been reported in the language processing literature as well. The results reported here, therefore, fit well with a usage-based approach to language change, which holds that language change is at least to some extent connected to cognitive mechanisms in the human brain. (shrink)

The settler-colonial and republican principles of early U.S. politics tend to be studied as paradoxical ambitions of American nation-building. This article argues that early republican thought in the United States developed through what I call ‘ideological code-switching’, a vernacular practice that allowed popular actors to strategically vacillate between anti-colonial and neo-colonial discourses as complementary principles of revolutionary change. I illustrate these claims by tracing a genealogy of anti- and neo-colonial thought from the founding of the United States to its (...) transnational emergence in the U.S.-Mexico borderlands. I demonstrate that ideological code-switching first appeared as a rhetorical strategy among the Federalist debates, where Publius argued for the feasibility of expansionist republics via a hemispheric account of American exceptionalism. These appeals to hemispheric unity remained salient into the nineteenth century among groups like the ‘Republicans of ‘Nacogdoches’, a militia comprised of Indigenous, Mestizo, and White actors that mobilized an attack on Spain and founded the Republic of Texas in April of 1813. Drawing on archival research, I turn to the U.S.-Mexico borderlands as an example of the way marginalized groups instrumentalized links between anti- and neo-colonial politics to envision their position in the rapidly evolving landscapes of transnational revolution. (shrink)

Both language and genes evolve by transmission over generations with opportunity for differential replication of forms. The understanding that gene frequencies change at random by genetic drift, even in the absence of natural selection, was a seminal advance in evolutionary biology. Stochastic drift must also occur in language as a result of randomness in how linguistic forms are copied between speakers. Here we quantify the strength of selection relative to stochastic drift in language evolution. We use (...) time series derived from large corpora of annotated texts dating from the 12th to 21st centuries to analyse three well-known grammatical changes in English: the regularization of past-tense verbs, the introduction of the periphrastic ’do’, and variation in verbal negation. We reject stochastic drift in favour of selection in some cases but not in others. In particular, we infer selection towards the irregular forms of some past-tense verbs, which is likely driven by changing frequencies of rhyming patterns over time. We show that stochastic drift is stronger for rare words, which may explain why rare forms are more prone to replacement than common ones. This work provides a method for testing selective theories of language change against a null model and reveals an underappreciated role for stochasticity in language evolution. (shrink)

Within a Complex Dynamic Systems Theory (CDST) framework, this longitudinal qualitative study explored the complex patterns and identified the degree of variability in three learners’ developmental process. Learners’ listening performance was tracked and examined every 6 weeks, followed by retrospective interviews and self-reflections every 7 weeks over the 43-month span. A series of CDST techniques were adopted for data analysis, including using min–max graphs to trace the minimum and maximum scores on the EFL learners’ listening developmental indices over time. Monte-Carlo (...) and Loess smoothing analyses were applied to gauge for degrees of variability. The results suggest that: (1) Min–max graphs and smoothed Loess curves depict flux developmental processes of learners’ L2 listening; (2) learners differed from each other in the degree of inter-individual variability in their listening developmental trajectory; and (3) occurrence of unanticipated patterns confirm that learners demonstrated personalized intra-individual variability within their unique listening developmental process. Results indicate that variability is a pattern characteristic of CDST both between and within individuals, and inform us about how Chinese EFL listeners’ language develops. We conclude by discussing the implications for researchers and practitioners who are concerned with learners’ developmental trajectories and unexpected changing patterns in the process of foreign language learning. (shrink)

Juri Lotman’s well-known distinction of primary modeling system versus secondary modeling system is a lasting legacy of his that has been adhered to, modified, and refuted by semioticians of culture and nature. Adherence aside, modifications and refutations have focused on the issue whether or not language is a primary modeling system, and, if not, what alternatives can be made available to replace it. As Sebeok would concur, for both biosemiosis and anthroposemiosis, language can only be a secondary modeling (...) system on top of the biological experience of Umwelt or human sensory system. This paper proposes to explore the possibility of a “preverbal” modeling system suggested by Lotman’s spatial concept of semiosphere, and discuss its implications in cross-cultural dialogue. (shrink)

This paper shows the relevance of an evolutionary model for the study of language change. We focus on a cognitive and usage-based approach to language change, namely the Theory of Utterance Selection developed by Croft (2000). Croft's evolutionary approach takes its inspiration from neo-Darwinian evolutionary theory, particularly the Generalized Theory of Selection developed by Hull (1988), a philosopher of science. Language is viewed as a system of use governed by convention, and language change (...) results from breaking with convention and propagating this innovation through the linguistic community until it becomes a new convention. Crucially, altered replication can be equated with language innovation, and propagation of individual changes is the linguistic counterpart of the differential perpetuation or selection of replicators. We will argue within the framework of Cognitive Linguistics (Geeraerts & Cuyckens, 2007) for a more systematic integration of cognitive and social factors in the explanation of language change. The mechanisms for language innovation are cognitive, as the pnnciples of cognitive efficiency like prototypicality constitute the main motivations for language change and metaphor and metonymy the main cognitive mechanisms of semantic change. The mechanisms for propagation are essentially social, including processes such as accommodation, identity and prestige. All of these mechanisms occur in individual communicative acts and operate like an "invisible hand" (Keller, 1994). We illustrate the sociocognitive evolutionary model of language change with some case studies on semantic change in Portuguese. (shrink)

The changes known as the loss of inflexions in English (11th- 15th centuries, included) were prompted with the introduction of a new mode of thinking. The mode of thinking, for the Anglo-Saxons, was a dynamic way of conceiving of things. Things were considered events happening. With the contacts of Anglo-Saxons with, first, the Romano-British; second, the introduction of Christianity; and finally with the Norman invasion, their dynamic way of thinking was confronted with the static conception of things coming from the (...) Mediterranean. The history of English from the 11th to the 15th century meant the introduction, confrontation and adoption of a new mental conception of things, the static way of conceiving of things, both modes of thinking defining the language today. (shrink)

Iconicity, the resemblance between the form of a word and its meaning, has effects on behavior in both communicative symbol development and language learning experiments. These results have invited speculation about iconicity being a key feature of the origins of language, yet the presence of iconicity in natural languages seems limited. In a diachronic study of language change, we investigated the extent to which iconicity is a stable property of vocabulary, alongside previously investigated psycholinguistic predictors of (...) change. Analyzing 784 English words with data on their historical forms, we found that stable words are higher in iconicity, longer in length, and earlier acquired during development, but that the role of frequency and grammatical category may be less important than previously suggested. Iconicity is revealed as a feature of ultra-conserved words and potentially also as a property of vocabulary early in the history of language origins. (shrink)

This book takes an exciting perspective on language change, by explaining it in terms of Darwin's evolutionary theory. Looking at a number of developments in the history of sounds and words, Nikolaus Ritt shows how the constituents of language can be regarded as mental patterns, or 'memes', which copy themselves from one brain to another when communication and language acquisition take place. Memes are both stable in that they transmit faithfully from brain to brain, and active (...) in that their success at replicating depends upon their own properties. Ritt uses this controversial approach to challenge established models of linguistic competence, in which speakers acquire, use, and shape language. In Darwinian terms, language evolution is something that happens to, rather than through, speakers, and the interests of linguistic constituents matter more than those of their human 'hosts'. This book will stimulate debate among evolutionary biologists, cognitive scientists and linguists alike. (shrink)

Language change can be conceptualized as a cyclical process of continuous renewal of the involved elements which somehow change their nature, with respect to phonological or lexico-grammatical features. A crucial aspect of such diachronic evolution is that cyclical change takes place systematically and follows regular and unidirectional patterns of development. Once the change is complete, the same developmental path will be undertaken by new linguistic items in the same cyclical fashion. In this paper, we illustrate (...) the concept of cyclical change by discussing two examples of linguistic cycles. A first instance of cyclical development is displayed at the phonological level by the diachronic changes in the obstruent consonant system taking place from Indo-European to German through the First and the Second Sound Shift: the cycle is completed in the Cimbrian dialects. A second instance is provided by the diachronic process known as Jespersen’s cycle ([1917] 1966): sentential negation, initially expressed through a single negative marker, is later reinforced by an additional one; eventually, this second element becomes the only negative marker available in the sentence while the original marker is deleted. The discussion of the negative cycle takes also into consideration the results of an empirical research conducted on two varieties of an Italo-Romance dialect spoken in northern Italy. (shrink)

This study investigates the effects of visual mnemonics and the methods of presenting learning materials on learning visually similar characters for Chinese-as-second-language (CSL) learners. In supporting CSL learners to build robust orthographic representations in Chinese, addressing the challenges of visual similarity of characters (e.g., 理 and 埋) is an important issue. Based on prior research on perceptual learning, we tested three strategies that differ in the extent to which they promote interrelated attention to the form and meaning of characters: (...) (1) Stroke Sequence, aform-emphasisstrategy, (2) Key-images, aform+meaningstrategy utilizing visual code, (3) Pithy Formulas with Key-images, aform+meaningstrategy combining visual and verbal codes. A pretest–posttest equivalent-group design was adopted. The independent variables were the learning strategy, the method of presenting character pairs (visually similar vs. dissimilar), and testing time. The dependent variables were learners’ proportions of accurate responses to reading and writing Chinese characters through a posttest (immediately performed after learning) and a delayed posttest (1 week after learning); a learner experience survey was also administered to investigate learners’ opinions on each strategy. Sixty-six non-beginning learners of Chinese participated; they were randomly assigned to one of the two groups in which participants learned ten charactersviathe three strategies, respectively, differing between whether the characters were presented in similar pairs or dissimilar pairs. Data were analyzedviathree-way ANCOVAs. The Pithy Formulas with Key-images and the Key-images generally yielded higher writing accuracy than Stroke Sequence immediately after learning. Notably, the advantage of the Pithy Formulas with Key-images (verbal and visual) over the Key-images (visual) on writing was specific to the participants that learned with visually similar pairs rather than those that learned with dissimilar pairs. All strategies were effective for reading, yet learners’ experience ratings favored the twoform+meaningstrategies over the strategy that focused primarily onform.Suggestions for future research and pedagogical implications on learning visually similar characters were offered. (shrink)

Theories of language production have long been expressed as connectionist models. We outline the issues and challenges that must be addressed by connectionist models of lexical access and grammatical encoding, and review three recent models. The models illustrate the value of an interactive activation approach to lexical access in production, the need for sequential output in both phonological and grammatical encoding, and the potential for accounting for structural effects on errors and structural priming from learning.

Both children and adults predict the content of upcoming language, suggesting that prediction is useful for learning as well as processing. We present an alternative model which can explain prediction behaviour as a by-product of language learning. We suggest that a consideration of language acquisition places important constraints on Pickering & Garrod's (P&G's) theory.

This paper uses the strengthened liar paradox as a springboard to illuminate two more general topics: i) the negation operator and the speech act of denial among speakers of English and ii) some ways the potential for acceptable language change is constrained by linguistic meaning. The general and special problems interact in reciprocally illuminating ways. The ultimate objective of the paper is, however, less to solve certain problems than to create others, by illustrating how the issues that form (...) the topic of this paper are more intricate than previously realised, and that they are related in delicate and somewhat surprising ways. (shrink)

Over half a century ago, George Zipf observed that more frequent words tend to be older. Corpus studies since then have confirmed this pattern, with more frequent words being replaced and regularized less often than less frequent words. Two main hypotheses have been proposed to explain this: that frequent words change less because selection against innovation is stronger at higher frequencies, or that they change less because stochastic drift is stronger at lower frequencies. Here, we report the first (...) experimental test of these hypotheses. Participants were tasked with learning a miniature language consisting of two nouns and two plural markers. Nouns occurred at different frequencies and were subjected to treatments that varied drift and selection. Using a model that accounts for participant heterogeneity, we measured the rate of noun regularization, the strength of selection, and the strength of drift in participant responses. Results suggest that drift alone is sufficient to generate the elevated rate of regularization we observed in low‐frequency nouns, adding to a growing body of evidence that drift may be a major driver of language change. (shrink)

Humans can attribute beliefs to others. However, it is unknown to what extent this ability results from an innate biological endowment or from experience accrued through child development, particularly exposure to language describing others' mental states. We test the viability of the language exposure hypothesis by assessing whether models exposed to large quantities of human language display sensitivity to the implied knowledge states of characters in written passages. In pre‐registered analyses, we present a linguistic version of the (...) False Belief Task to both human participants and a large language model, GPT‐3. Both are sensitive to others' beliefs, but while the language model significantly exceeds chance behavior, it does not perform as well as the humans nor does it explain the full extent of their behavior—despite being exposed to more language than a human would in a lifetime. This suggests that while statistical learning from language exposure may in part explain how humans develop the ability to reason about the mental states of others, other mechanisms are also responsible. (shrink)

Traditional theories construe approximate truth or truthlikeness as a measure of closeness to facts, singular facts, and idealization as an act of either assuming zero of otherwise very small differences from facts or imagining ideal conditions under which scientific laws are either approximately true or will be so when the conditions are relaxed. I first explain the serious but not insurmountable difficulties for the theories of approximation, and then argue that more serious and perhaps insurmountable difficulties for the theory of (...) idealization force us to sever its close tie to approximation. This leads to an appreciation of lawlikeness as a measure of closeness to laws, which I argue is the real measure of idealization whose main purpose is to carve nature at its joints. (shrink)

A discussion of the relation of dialectical transitions in Hegel's speculative logic to changes in categories and grammar in the empirical historical languages.

The primary aim of this article is to find out what different linguists say about the role of intentions in the study and explanations of language change. I try to investigate if in the explanation of language change, “having an intention” does any explanatory work. If intentions play a role, how do they do it, at which point it is salutary to invoke them, and what do they contribute to the explanation of language change? (...) My main claim is that speakers’ intentions have a role to play only on higher linguistic levels, e.i., in speakers’ communicative strategies. Since this is a celebration for Kathy Wilkes and her contribution to goal-directed behaviour, in the Concluding remarks I go back to her remarks on language and intentions and see how they fi t my discussion in this paper. (shrink)

***Translated a Korean-language book to English with Dr. Chang-Seong Hong*** Venerable Hyun-Eung's Enlightenment and History is the first book of Buddhist philosophy of history published in South Korea; possibly the first of its kind in the world. In this book of telling points and clear visions, Hyun-Eung discusses East Asian Buddhist traditions in light of Western-philosophical perspectives and presents his views on the theory and praxis in contemporary Buddhism in a way that Western readers can easily understand. East Asian (...) Buddhist philosophy has had little introduction to English-speaking societies compared with the philosophies of other traditions in Buddhism. This book provides penetrating insight into such major issues of East Asian Mahayana Buddhism as enlightenment, compassion, emptiness, and sudden enlightenment in the Zen traditions. Hyun-Eung s approach is creative, clear, logical, and methodologically modernized. Hyun-Eung s Buddhist philosophy of history is not a mere product of armchair philosophy. He wrote most essays in this book during the 1980 s while South Korea was undergoing serious political turmoil as it tried to overthrow a government backed by military generals. This book presents a philosophy that evolved from his contemplations on the real issues of South Korean society. Defining the ideal form of life as the life of bodhisattva in Mahayana Buddhism, Hyun-Eung summarizes the theme of this book as follows: My book Enlightenment and History is a collection of essays that interpret Buddhist doctrines under a new light. In particular, this book interprets bodhisattva as the combination of bodhi (enlightenment) and sattva (life, history), and defines the life of bodhisattva as enlightenment s becoming history and history s becoming enlightenment. This is the representative of all the new interpretations in this book. Also, I classify the issue of fact judgments on how to understand facts and phenomena as the area of bodhi (enlightenment) and the issue of value judgments on how to live life as the area of sattva (history), and thereby I make their logical differences clear. However, at the same time, I claim that harmonizing these two areas into one area of life is the model of a nice and practical life, which is the bodhisattva that Mahayana Buddhism praises. From Introduction. (shrink)

The Hwa Yen school of Mahāyāna Buddhism bloomed in China in the 7th and 8th centuries A.D. Today many scholars regard its doctrines of Emptiness, Totality, and Mind-Only as the crown of Buddhist thought and as a useful and unique philosophical system and explanation of man, world, and life as intuitively experienced in Zen practice. For the first time in any Western language Garma Chang explains and exemplifies these doctrines with references to both oriental masters and Western philosophers. The (...) Buddha's mystical experience of infinity and totality provides the framework for this objective revelation of the three pervasive and interlocking concepts upon which any study of Mahāyāna philosophy must depend. Following an introductory section describing the essential differences between Judeo-Christian and Buddhist philosophy, Professor Chang provides an extensive, expertly developed section on the philosophical foundations of Hwa Yen Buddhism dealing with the core concept of True Voidness, the philosophy of Totality, and the doctrine of Mind-Only. A concluding section includes selections of Hwa Yen readings and biographies of the patriarchs, as well as a glossary and list of Chinese terms. (shrink)

Cognitive Science, Volume 46, Issue 4, April 2022.

I discuss a stochastic model of language learning and change. During a syntactic change, each speaker makes use of constructions from two different idealized grammars at variable rates. The model incorporates regularization in that speakers have a slight preference for using the dominant idealized grammar. It also includes incrementation: The population is divided into two interacting generations. Children can detect correlations between age and speech. They then predict where the population’s language is moving and speak according (...) to that prediction, which represents a social force encouraging children not to sound out-dated. Both regularization and incrementation turn out to be necessary for spontaneous language change to occur on a reasonable time scale and run to completion monotonically. Chance correlation between age and speech may be amplified by these social forces, eventually leading to a syntactic change through prediction-driven instability. (shrink)

Lexicalized theories of syntax often assume that verb-structure regularities are mediated by lemmas, which abstract over variation in verb tense and aspect. German syntax seems to challenge this assumption, because verb position depends on tense and aspect. To examine how German speakers link these elements, a structural priming study was performed which varied syntactic structure, verb position, and verb overlap.structural priming was found, both within and across verb position, but priming was larger when the verb position was the same between (...) prime and target. Priming was boosted by verb overlap, but there was no interaction with verb position. The results can be explained by a lemma model where tense and aspect are linked to structural choices in German. Since the architecture of this lemma model is not consistent with results from English, a connectionist model was developed which could explain the cross-linguistic variation in the production system. Together, these findings support the view that language learning plays an important role in determining the nature of structural priming in different languages. (shrink)

Information processing in neural systems can be described and analyzed at multiple spatiotemporal scales. Generally, information at lower levels is more fine-grained but can be coarse-grained at higher levels. However, only information processed at specific scales of coarse-graining appears to be available for conscious awareness. We do not have direct experience of information available at the scale of individual neurons, which is noisy and highly stochastic. Neither do we have experience of more macro-scale interactions, such as interpersonal communications. Neurophysiological evidence (...) suggests that conscious experiences co-vary with information encoded in coarse-grained neural states such as the firing pattern of a population of neurons. In this article, we introduce a new informational theory of consciousness: Information Closure Theory of Consciousness (ICT). We hypothesize that conscious processes are processes which form non-trivial informational closure (NTIC) with respect to the environment at certain coarse-grained scales. This hypothesis implies that conscious experience is confined due to informational closure from conscious processing to other coarse-grained scales. Information Closure Theory of Consciousness (ICT) proposes new quantitative definitions of both conscious content and conscious level. With the parsimonious definitions and a hypothesize, ICT provides explanations and predictions of various phenomena associated with consciousness. The implications of ICT naturally reconcile issues in many existing theories of consciousness and provides explanations for many of our intuitions about consciousness. Most importantly, ICT demonstrates that information can be the common language between consciousness and physical reality. (shrink)

Using educational robots to integrate computational thinking with cross-disciplinary content has gone beyond Science, Technology, Engineering, and Mathematics, to include foreign-language learning and further cross-context target-language acquisition. Such integration must not solely emphasise CT problem-solving skills. Rather, it must provide students with interactive learning to support their target-language interaction while reducing potential TL anxiety. This study aimed to validate the effects of the proposed method of pair programming along with question-and-response interaction in a board-game activity on young (...) learners’ CT skills and TL learning across contexts. Two Grade 6 classes, one with 16 students who were studying Chinese as a Second Language and the other with 16 students who were studying English as a Foreign Language, participated in the activity. A series of instruments on achievement assessment, questionnaires on CT skills and TL anxiety, and sequential learning behaviour analysis were used to critically examine the results. The main conclusion is that the EFL group showed better social skills of cooperation on CT and lower TL learning anxiety, while the CSL group demonstrated better problem-solving skills in CT, but presented more behaviours of trial-and-error loops. Results not only contribute suggestions for cross-disciplinary learning but also provide support for cross-context instruction beyond educational coursework. (shrink)

Like other sciences, biosemiotics also has its time-honoured archive, consisting, among other things, of writings by those who have been invented and revered as ancestors of the discipline. One such example is Jakob von Uexküll who has been hailed as a precursor of semiotics, developing his theory of “sign” and “meaning” independently of Saussure and Peirce. The juxtaposition of “sign” and “meaning” is revelatory because one can equally legitimately claim Uexküll as a hermeneutician in the same way as others having (...) claimed him as a semiotician. Such a novel temptation can be justified by Uexküll’s prolonged obsession with Sinn and Bedeutung since his first book in 1909. This paper attempts to reconstruct the immediate intellectual horizon of Uexküll’s historicity, a discursive space traversed by his contemporaries Frege and Husserl, in order to see how Uexküll’s discussions of Zeichen and Gegenstand, Sinn and Bedeutung, were informedby other philosophers of language, and to establish Uexküll as a phenomenological hermeneutician in the tradition of Husserl, Heidegger and Gadamer. To forestall and counter possible criticism that hermeneutics is primarily concerned with textual interpretation, while Uexküll is at most an interpreter of animal life, the paper will discuss his unfinished parody of the Platonic dialogue Meno, which is entitled Die ewige Frage: Biologische Variationen über einen platonischen Dialog (1943). It is through such textual practice that one witnesses the emergence of an Uexküll who embodies at once the addressee exercising his understanding of ancient texts as well as the second addresser recoding his explanation to another group of targeted addressees. This textual practice already goes beyond the confines of biology and in fact involves the linguistic pragmatics of rhetoric and speech act. (shrink)

Language learning requires linguistic input, but several studies have found that knowledge of second language rules does not seem to improve with more language exposure. One reason for this is that previous studies did not factor out variation due to the different rules tested. To examine this issue, we reanalyzed grammaticality judgment scores in Flege, Yeni-Komshian, and Liu's study of L2 learners using rule-related predictors and found that, in addition to the overall drop in performance due to (...) a sensitive period, L2 knowledge increased with years of input. Knowledge of different grammar rules was negatively associated with input frequency of those rules. To better understand these effects, we modeled the results using a connectionist model that was trained using Korean as a first language and then English as an L2. To explain the sensitive period in L2 learning, the model's learning rate was reduced in an age-related manner. By assigning different learning rates for syntax and lexical learning, we were able to model the difference between early and late L2 learners in input sensitivity. The model's learning mechanism allowed transfer between the L1 and L2, and this helped to explain the differences between different rules in the grammaticality judgment task. This work demonstrates that an L1 model of learning and processing can be adapted to provide an explicit account of how the input and the sensitive period interact in L2 learning. (shrink)