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Colour generalisation by domestic chicks

Published online by Cambridge University Press:  20 August 2002

R. Baddeley ,
D. Osorio  and
C. D. Jones
R. Baddeley
Affiliation:
School of Biological Sciences, University of Sussex, Brighton BN1 9QG, United [email protected]@[email protected] http://www.biols.susx.ac.uk/Home/Roland_Baddeley/
D. Osorio
Affiliation:
School of Biological Sciences, University of Sussex, Brighton BN1 9QG, United [email protected]@[email protected] http://www.biols.susx.ac.uk/Home/Roland_Baddeley/
C. D. Jones
Affiliation:
School of Biological Sciences, University of Sussex, Brighton BN1 9QG, United [email protected]@[email protected] http://www.biols.susx.ac.uk/Home/Roland_Baddeley/
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Abstract

We present data on colour generalisation by chicks relevant to Tenenbaum and Griffiths' (T&G) Bayesian framework. Chicks were trained with either one or two colours, and tested for interpolation and extrapolation. T&G's framework predicts an observed lack of extrapolation on the red to yellow line in colour space. A modification incorporating stimulus uncertainty deals with a prototype effect, where an intermediate is preferred to exemplars. After training to complementary colours, chicks do not generalise across an intermediate grey as T&G predict. [Tenenbaum & Griffiths]

Type
Brief Report
Information
Behavioral and Brain Sciences , Volume 24 , Issue 4 , August 2001 , pp. 654
Copyright
© 2001 Cambridge University Press

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