Andersen, Richard A. and Snyder, Lawrence H. and Bradley, David C. and Xing, Jing (1997) Multimodal Representation of Space in the Posterior Parietal Cortex and its use in Planning Movements. Annual Review of Neuroscience, 20 . pp. 303-330. ISSN 0147-006X http://resolver.caltech.edu/CaltechAUTHORS:ANDarn97
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Recent experiments are reviewed that indicate that sensory signals from many modalities, as well as efference copy signals from motor structures, converge in the posterior parietal cortex in order to code the spatial locations of goals for movement. These signals are combined using a specific gain mechanism that enables the different coordinate frames of the various input signals to be combined into common, distributed spatial representations. These distributed representations can be used to convert the sensory locations of stimuli into the appropriate motor coordinates required for making directed movements. Within these spatial representations of the posterior parietal cortex are neural activities related to higher cognitive functions, including attention. We review recent studies showing that the encoding of intentions to make movements is also among the cognitive functions of this area.
|Subject Keywords:||eye movements, navigation, monkey, spatial representation, optic flow|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Archive Administrator|
|Deposited On:||29 Jun 2005|
|Last Modified:||26 Dec 2012 08:40|
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