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Visuomotor delays when hitting running spiders.

By Jeroen B.J. Smeets, Eli Brenner and Marc H.E. de Lussanet


In general, information about the environment (for instance a target) is not instantaneously available for the nervous system. A minimal delay for visual information to affect the movement of the hand is about 110 ms. However, if the movement of a target is predictable, humans can pursue it with zero delay. To make this prediction, information about the speed of the target is necessary. Our results show that this information is used with a delay of about 200 ms. We discuss that oculomotor efference is a likely source of information for this prediction

Topics: Cognitive Psychology, Neurophysiology, Psychophysics
Publisher: Éditions EDK, Paris.
Year: 1998
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