Comparison of neural activity preceding reaches to auditory and visual stimuli in the parietal reach region
Abstract
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.
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.Additional details
- Eprint ID
- 102234
- Resolver ID
- CaltechAUTHORS:20200401-101843496
- National Eye Institute
- Sloan-Swartz Center for Theoretical Neurobiology
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- James G. Boswell Foundation
- Office of Naval Research (ONR)
- NIH
- Created
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2020-04-01Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field