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Behavioral and Cognitive Neuroscience Reviews
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Insights into Seeing and Grasping: Distinguishing the Neural Correlates of Perception and Action

Mikhail A. Lebedev

Steven P. Wise

National Institute of Mental Health

Vision contributes to both perception and visuomotor control, and it has been suggested that many higher brain structures specialize in one or the other function. An alternative view, presented here, is that most higher brain areas participate in both visuomotor and perceptual functions. In the anterior frontal cortex, for example, the activity of one population of neurons reflects perceptual reports about a visual stimulus, whereas the activity of an intermingled population reflects movements aimed at the same stimulus. Similarly, posterior parietal and inferior temporal areas appear to function in both visual perception and visuomotor control. Visuomotor signals in higher order cortical areas could contribute to the perception of one’s own action. They also might reflect the existence of two systems for visual information processing: one stressing accuracy for the control of movement and the other generating hypotheses about the world.

Key Words: consciousness • illusion • parietal • prefrontal • premotor

Behavioral and Cognitive Neuroscience Reviews, Vol. 1, No. 2, 108-129 (2002)
DOI: 10.1177/1534582302001002002
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