Two prevailing paradigms explain the diversity of sex-determining modes in reptiles. Many researchers, particularly those who study reptiles, consider genetic and environmental sex-determining mechanisms to be fundamentally different, and that one can be demonstrated experimentally to the exclusion of the other. Other researchers, principally those who take a broader taxonomic perspective, argue that no clear boundaries exist between them. Indeed, we argue that genetic and environmental sex determination in reptiles should be seen as a continuum of states represented by species (...) whose sex is determined primarily by genotype, species where genetic and environmental mechanisms coexist and interact in lesser or greater measure to bring about sex phenotypes, and species where sex is determined primarily by environment. To do otherwise limits the scope of investigations into the transition between the two and reduces opportunities to use studies of reptiles to advance understanding of vertebrate sex determination generally. © 2004 Wiley Periodicals, Inc. (shrink)

I begin the paper by outlining one classic argument for the guise of the good: that we must think that desires represent their objects favourably in order to explain why they can make actions rational (Quinn 1995; Stampe 1987). But what exactly is the conclusion of this argument? Many have recently formulated the guise of the good as the view that desires are akin to perceptual appearances of the good (Oddie 2005; Stampe 1987; Tenenbaum 2007). But I argue that (...) this view fails to capitalize on the above argument, and that the argument is better understood as favouring a view on which desires are belief-like states. I finish by addressing some countervailing claims made by Avery Archer (2016). (shrink)

We agree with Vaesen that there is evidence for cognitive differences between humans and other primates. However, it is too early to draw firm conclusions about the uniqueness of the cognitive mechanisms underlying human tool use. Tests of causal understanding are in their infancy, as is the study of animals more distantly related to humans.

What does it mean to be of a particular gender? I answer this question with an account of genders as dynamic categories, exploring the analogy between what genders are (e.g., men or women) and what genres are (e.g., Novels, Ballads, or Hip-Hop). For instance, due to its relation to other and earlier pieces, we recognize, e.g., a particular song as Hip-Hop. However, the piece will also develop that genre further. Likewise, e.g., the category of men emerges, persists and transforms through (...) a specific sort of response of individuals to earlier supposed men, which emerges in social interactions. Drawing on critical and (trans-)feminist theory, phenomenologist, enactivist, and systems theoretical approaches, I show that gender categories themselves develop in a dynamic between three elements: (1) at any given time, there is an enactment class of individuals ambiguously belonging to the category in question; (2) these individuals are, in an embodied and intersubjective way, enacted as practical reinterpretations of earlier members of that category; (3) this unfolds in a matrix of hermeneutic and material relations, which loop with both the class and the enaction. Thereby, that an individual is gendered, emerges between two levels of enaction, that of bodily people and that of the dynamic between them. As what an individual is gendered in enaction, however, is constituted by relations within and beyond that situation. This responsive realization gives rise to feedbacking histories of acts, people, relations, and enactment classes, thus explaining how gender can be both solid and open to change. (shrink)

Este texto pretende propor um breve comentário sobre o início do ensaio O Olho e o Espírito de Merleau-Ponty. Fazendo um recorte no movimento mais amplo de reconfiguração ontológica sugerido no ensaio, busca-se aqui indicar como a análise do corpo feita pelo filósofo aponta já para um outro tipo de ser, conduzindo ao reconhecimento de uma imbricação interna entre o subjetivo e o objetivo. Procura-se mostrar que o corpo já revela a estrutura reversível que se reconhecerá em todo o percebido, (...) marca da ontologia de Merleau-Ponty assentada na relação entre o visível e o invisível. (shrink)

This anthology is intended as a core text for courses in aesthetics or philosophy of art. It contains a wealth of readings from both classic and contemporary sources, and aims to present substantial selections from those texts rather than mere "snippets." Readings are organized historically within four broad themes so that students can see how concepts of art have evolved and been debated. Each reading is introduced by the authors, who suggest connections between the reading and others in the anthology. (...) Unlike other anthologies on the market, The Philosophy of Art is both comprehensive and affordable, making it the ideal book for course use. (shrink)

There is extensive evidence that adults, children, and some non-human species, represent routine events in the form of hierarchically structured 'action scripts,' and show superior recall and imitation of information at relatively high-levels of this hierarchy. Here we investigate the hypothesis that a 'hierarchical bias' operates in human cultural transmission, acting to impose a hierarchical structure onto descriptions of everyday events, and to increasingly describe those events in terms of higher hierarchical levels. Descriptions of three everyday events expressed entirely in (...) terms of basic low-level actions were transmitted along ten chains each containing four adult human participants. It was found that the proportion of low-level information showed a significant linear decrease with transmission generation, while the proportions of medium- and high-level information showed significant linear increases, consistent with the operation of a hierarchical bias. The findings additionally provide support for script theory in general, and are discussed in relation to hierarchical imitation in non-human primates. (shrink)

Critics of Darwinian cultural evolution frequently assert that whereas biological evolution is blind and undirected, cultural change is directed or guided by people who possess foresight, thereby invalidating any Darwinian analysis of culture. Here I show this argument to be erroneous and unsupported in several respects. First, critics commonly conflate human foresight with supernatural clairvoyance, resulting in the premature rejection of Darwinian cultural evolution on false logical grounds. Second, the presence of foresight is perfectly consistent with Darwinian evolution, and is (...) found in biology, in the form of open, teleonomic processes such as genetically-biased behavioural learning. Finally, empirical evidence from the social sciences suggests that cultural change appears far less guided and directed, and human foresight far less accurate, than is commonly assumed. (shrink)

PurposeThe ability to hear ourselves speak has been shown to play an important role in the development and maintenance of fluent and coherent speech. Despite this, little is known about the developing speech motor control system throughout childhood, in particular if and how vocal and articulatory control may differ throughout development. A scoping review was undertaken to identify and describe the full range of studies investigating responses to frequency altered auditory feedback in pediatric populations and their contributions to our understanding (...) of the development of auditory feedback control and sensorimotor learning in childhood and adolescence.MethodRelevant studies were identified through a comprehensive search strategy of six academic databases for studies that included real-time perturbation of frequency in auditory input, an analysis of immediate effects on speech, and participants aged 18 years or younger.ResultsTwenty-three articles met inclusion criteria. Across studies, there was a wide variety of designs, outcomes and measures used. Manipulations included fundamental frequency, formant frequency, frequency centroid of fricatives, and both fundamental and formant frequencies. Study designs included contrasts across childhood, between children and adults, and between typical, pediatric clinical and adult populations. Measures primarily explored acoustic properties of speech responses. Some studies additionally examined the association of these acoustic responses with clinical measures, and neural measures using electrophysiology and magnetic resonance imaging.ConclusionFindings indicated that children above 4 years generally compensated in the opposite direction of the manipulation, however, in several cases not as effectively as adults. Overall, results varied greatly due to the broad range of manipulations and designs used, making generalization challenging. Differences found between age groups in the features of the compensatory vocal responses, latency of responses, vocal variability and perceptual abilities, suggest that maturational changes may be occurring in the speech motor control system, affecting the extent to which auditory feedback is used to modify internal sensorimotor representations. Varied findings suggest vocal control develops prior to articulatory control. Future studies with multiple outcome measures, manipulations, and more expansive age ranges are needed to elucidate findings. (shrink)

A popular interpretation of linguistic theories has it that they should describe the brain at a high level of abstraction. One way this has been understood is as the requirement that the theory’s derivational structure reflect (by being isomorphic to) relevant structural properties of the language user’s brain. An important criticisrn of this idea, made originally by Crispin Wright against Gareth Evans in the 1980s, still has purchase, notwithstanding attempts to reply to it, notably by Martin Davies and, indirectly, Christopher (...) Peacocke. Wright’s objection seems to have been forgotten rather than seen off. (shrink)

This paper shows how critical realism can be used to integrate empirical data and philosophical analysis within ‘empirical bioethics’. The term empirical bioethics, whilst appearing oxymoronic, simply refers to an interdisciplinary approach to the resolution of practical ethical issues within the biological and life sciences, integrating social scientific, empirical data with philosophical analysis. It seeks to achieve a balanced form of ethical deliberation that is both logically rigorous and sensitive to context, to generate normative conclusions that are practically applicable to (...) the problem, challenge, or dilemma. Since it incorporates both philosophical and social scientific components, empirical bioethics is a field that is consistent with the use of critical realism as a research methodology. The integration of philosophical and social scientific approaches to ethics has been beset with difficulties, not least because of the irreducibly normative, rather than descriptive, nature of ethical analysis and the contested relation between fact and value. However, given that facts about states of affairs inform potential courses of action and their consequences, there is a need to overcome these difficulties and successfully integrate data with theory. Previous approaches have been formulated to overcome obstacles in combining philosophical and social scientific perspectives in bioethical analysis; however each has shortcomings. As a mature interdisciplinary approach critical realism is well suited to empirical bioethics, although it has hitherto not been widely used. Here I show how it can be applied to this kind of research and explain how it represents an improvement on previous approaches. (shrink)

This paper critically examines what Nicholas Wolterstorff has to say in Divine Discourse in response to the two questions in the title. It tries to show that his argument for the conclusion that God can have the obligations of a speaker is defective. It also tries to show that his argument for the conclusion that some actual person is entitled to believe that God has spoken to her is incomplete. The paper's conclusion is that Wolterstorff's arguments fail to establish, or (...) to provide strong grounds for accepting, a positive answer to either of the questions in its title. (shrink)