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Visual signals for action and perception| old_uid | 1826 |
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| title | Visual signals for action and perception |
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| start_date | 2006/11/27 |
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| schedule | 11h-12h30 |
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| online | no |
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| summary | Currently there is considerable debate as to the nature of the pathways that are responsible for perception and motor performance. Milner & Goodale (1992) suggested that there are two separate visual pathways, one of which is dedicated to generating the signals for visually guided behavior. However, evidence from psychophysical experiments estimating the effect of visual illusions on size perception and grip aperture has been ambiguous. Here, I present a different approach for the comparison of perception and action, in which the variance and correlation of visual and motor behavior are estimated and compared on a trial-by-trial basis. This method is applied to the comparison of the perceived speed of moving targets with the speed of smooth pursuit eye movements. The results show that the precision of the signals underlying perception and pursuit are equal, and that the effect of adaptation on them is also the same. |
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| responsibles | Information non disponible |
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