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Do adults make A-not-B errors in pointing?

Published online by Cambridge University Press:  30 October 2001

Philippe Vindras  and
Edouard Gentaz
Philippe Vindras
Affiliation:
Faculty of Psychology and Educational Sciences, University of Geneva, 1205 Geneva, [email protected]
Edouard Gentaz
Affiliation:
Cognition and Development Laboratory UMR 8605 CNRS, University René-Descartes, Paris V 92774 Boulogne-Billancourt Cedex, [email protected]
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Abstract

We discuss the assumptions put forward by Thelen et al. about motor planning processes. We examine the results of an experiment inspired by the authors' contention that the motor plans of both infants and adults are continuous and graded. We wondered whether adults, in an adapted version of the A-not-B error paradigm, would point between the A and B targets, as in some degraded conditions of pointing (Ghez et al. 1990), or would make A-not-B errors. Unexpectedly, we observed that adults tended to shift the direction of their pointings to B away from A, and did not make any A-not-B errors.

Type
Brief Report
Information
Behavioral and Brain Sciences , Volume 24 , Issue 1 , February 2001 , pp. 68 - 70
Copyright
© 2001 Cambridge University Press

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