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Trends Cogn Sci. 2001 Mar 1;5(3):109-113.

Do action systems resist visual illusions?

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Neuropsychology Research Group, Dept of Psychology, University of Aberdeen, AB24 2UB, Aberdeen, UK


Arguments about the relative independence of visual modules in the primate brain are not new. Recently, though, these debates have resurfaced in the form of arguments about the extent to which visuomotor reaching and grasping systems are insensitive to visual illusions that dramatically bias visual perception. The first wave of studies of illusory effects on perception and action have supported the idea of independence of motor systems, but recent findings have been more critical. In this article, I review several of these studies, most of which (but not all) can be reconciled with the two-visual-systems model.


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