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The Parietal Reach Region Codes the Next Planned Movement in a Sequential Reach Task

Batista, Aaron P. and Andersen, Richard A. (2001) The Parietal Reach Region Codes the Next Planned Movement in a Sequential Reach Task. Journal of Neurophysiology, 85 (2). pp. 539-544. ISSN 0022-3077. doi:10.1152/jn.2001.85.2.539.

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Distinct subregions of the posterior parietal cortex contribute to planning different movements. The parietal reach region (PRR) is active during the delay period of a memory-guided reach task but generally not active during a memory-guided saccade task. We explored whether the reach planning activity in PRR is related to remembering targets for reaches or if it is related to specifying the reach that the monkey is about to perform. Monkeys were required to remember two target locations and then reach to them in sequence. Before the movements were executed, PRR neurons predominantly represented the reach about to be performed and only rarely represented the remembered target for the second reach. This indicates the area plays a role in specifying the target for the impending reach and may not contribute to storing the memory of subsequent reach targets.

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Andersen, Richard A.0000-0002-7947-0472
Additional Information:© 2001 The American Physiological Society. Received 28 March 2000; Accepted 21 September 2000; Published online 1 February 2001; Published in print 1 February 2001. We thank C. Buneo and Y. Cohen for experimental assistance, M. Sahani for helpful discussions, M. J. Nichols for comments on the manuscript, B. Gillikin for assistance with animals, and C. Reyes for administrative assistance. This work was supported by the National Eye Institute, the Sloan Center for Theoretical Neurobiology, and the Office of Naval Research. The costs of publication of this article were defrayed in part by the payment of page charges. The article must therefore be hereby marked “advertisement” in accordance with 18 U.S.C. Section 1734 solely to indicate this fact.
Funding AgencyGrant Number
National Eye InstituteUNSPECIFIED
Sloan-Swartz Center for Theoretical NeurobiologyUNSPECIFIED
Office of Naval Research (ONR)UNSPECIFIED
Issue or Number:2
Record Number:CaltechAUTHORS:20200401-131439195
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Official Citation:The Parietal Reach Region Codes the Next Planned Movement in a Sequential Reach Task. Aaron P. Batista and Richard A. Andersen. Journal of Neurophysiology 2001 85:2, 539-544; doi: 10.1152/jn.2001.85.2.539
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:102242
Deposited By: Tony Diaz
Deposited On:01 Apr 2020 22:05
Last Modified:16 Nov 2021 18:10

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