Cognitive modules, synaesthesia and the constitution of psychological natural kinds

Author: Gray, Richard

Source: Philosophical Psychology, Volume 14, Number 1, 1 March 2001 , pp. 65-82(18)

Publisher: Routledge, part of the Taylor & Francis Group

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Abstract:

Fodor claims that cognitive modules can be thought of as constituting a psychological natural kind in virtue of their possession of most or all of nine specified properties. The challenge to this considered here comes from synaesthesia. Synaesthesia is a type of cross-modal association: input to one sensory modality reliably generates an additional sensory output that is usually generated by the input to a distinct sensory modality. The most common form of synaesthesia manifests Fodor's nine specified properties of modularity, and hence, according to Segal (1997), it should be understood as involving an extra module. Many psychologists believe that synaesthesia involves a breakdown in modularity. After outlining how both theories can explain the manifestation of the nine alleged properties of modularity in synaesthesia, I discuss the two concepts of function which initially motivate the respective theories. I argue that only a teleological concept of function is properly able to adjudicate between the two theories. The upshot is a further application of so-called externalist considerations to mental phenomena.

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/09515080120033562

Affiliations: Department of Philosophy, University of Edinburgh, David Hume Tower, George Square, EH8 9JX, UK

Publication date: March 1, 2001

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