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Comparison of neural activity preceding reaches to auditory and visual stimuli in the parietal reach region

Cohen, Yale E. and Batista, Aaron P. and Andersen, Richard A. (2002) Comparison of neural activity preceding reaches to auditory and visual stimuli in the parietal reach region. Neuroreport, 13 (6). pp. 891-894. ISSN 0959-4965. doi:10.1097/00001756-200205070-00031.

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We examined the responses of neurons in the parietal reach region (PRR) during reaches to the remembered locations of auditory or visual stimuli. We found that the firing rate of PRR neurons contained information about the location of auditory and visual stimuli. For neurons tested with visual stimuli, the amount of information remained constant throughout the task. In contrast, for neurons tested with auditory stimuli, the amount of target-location information increased as the trial evolved. During the reach period of the task, the amount of information that was carried by neurons tested with auditory stimuli was not statistically different from the amount carried by neurons tested with visual stimuli. We interpret these data to suggest that the type of information that PRR neurons encode evolves throughout a task.

Item Type:Article
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Andersen, Richard A.0000-0002-7947-0472
Additional Information:© 2002 Lippincott, Williams & Wilkins. Received 27 February 2002; accepted 11 March 2002. We thank C. Buneo for experimental assistance, J. Linden, C. Buneo, K. Shenoy, G. Gifford, and A. Grunewald for helpful discussions, 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, the Bantrell Fellowship, the James G. Boswell Neuroscience Professorship, and the Office of Naval Research.
Funding AgencyGrant Number
National Eye InstituteUNSPECIFIED
Sloan-Swartz Center for Theoretical NeurobiologyUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
James G. Boswell FoundationUNSPECIFIED
Office of Naval Research (ONR)UNSPECIFIED
Subject Keywords:Auditory, Information, Monkey, Posterior parietal cortex, Reach
Issue or Number:6
Record Number:CaltechAUTHORS:20200401-101843496
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:102234
Deposited By: Tony Diaz
Deposited On:01 Apr 2020 18:09
Last Modified:16 Nov 2021 18:10

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