Defining vision: What homology thinking contributes

Biology and Philosophy 22 (5):675-689 (2007)
Abstract
The specialization of visual function within biological function is reason for introducing “homology thinking” into explanations of the visual system. It is argued that such specialization arises when organisms evolve by differentiation from their predecessors. Thus, it is essentially historical, and visual function should be regarded as a lineage property. The colour vision of birds and mammals do not function the same way as one another, on this account, because each is an adaptation to special needs of the visual functions of predecessors—very different kinds of predecessors in each case. Thus, history underlies function. We also see how homology thinking figures in the hierarchical classification of visual systems, and how it supports the explanation of visual function by functional role analysis
Keywords Philosophy   Evolutionary Biology   Philosophy of Biology
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DOI 10.1007/s10539-007-9088-4
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Convergence as Evidence.A. Currie - 2013 - British Journal for the Philosophy of Science 64 (4):763-786.
Homology Thinking.Marc Ereshefsky - 2012 - Biology and Philosophy 27 (3):381-400.
Flavour, Taste and Smell.Louise Richardson - 2013 - Mind and Language 28 (3):322-341.
Multiple Realization in Comparative Perspective.Mark B. Couch - 2009 - Biology and Philosophy 24 (4):505-519.

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