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Compensation for time delays is better achieved in time than in space

Published online by Cambridge University Press:  14 May 2008

Myrka Zago
Affiliation:
Scientific Institute Santa Lucia, 00179 Rome, Italy
Francesco Lacquaniti
Affiliation:
University of Rome “Tor Vergata” and Scientific Institute Santa Lucia, 00179 Rome, Italy. m.zago@hsantalucia.it lacquaniti@caspur.it

Abstract

Mechanisms of visual prediction based on spatial extrapolation work only for targets moving at constant speed, but do not easily accommodate accelerating or decelerating motion. We argue that mechanisms based on temporal extrapolation deal with both uniform and non-uniform motion. We provide behavioural examples from interception of falling objects and suggest possible neurophysiological substrates of time extrapolation.

Type
Open Peer Commentary
Copyright
Copyright ©Cambridge University Press 2008

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