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Neuropsychologia. 2009 May;47(6):1409-20. doi: 10.1016/j.neuropsychologia.2008.12.028. Epub 2008 Dec 30.

Parietal encoding of action in depth.

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1
Department of Physiology and Pharmacology and CSFM, SAPIENZA, University of Rome, Rome, Italy.

Abstract

The posterior parietal cortex is a crucial node in the process of coordinates transformation for the visual control of eye and hand movements. This conviction stems from both neurophysiological studies in the behaving monkey and from the analysis of the consequences of parietal lobe lesions in humans. Despite an extensive literature concerning varying aspects of the composition and control of eye and hand movements, there is little information about the physiological processes responsible for encoding target distance and hand movement in depth or about their control and impairment in parietal patients. This review is an attempt to provide a comprehensive picture from the fragmentary material existing on this issue in the literature. This should serve as a basis for discussion of what we consider to be a prototypical function of the dorsal visuomotor stream in the primate brain, that of encoding eye and hand movement in depth.

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