Report on Grant AFOSR-91-0333 (Tennessee University).
Abstract
Three research goats were accomplished during this third year. (1) Analysis of data indicated that the responsiveness of primary somatosensory (SI) cortical neurons is unattended if when behavioral conditions become unpredictable. This observation fits with the hypothesis that during stereotyped behavior, neuronal responsiveness is gated so that the CNS may partially engage in other activities. (2) SI cortical neurons that respond to vibratory go-cues for wrist movement with the greatest fidelity have their activity modulated just prior to movement onset. This observation fits with the hypothesis that prior to active movement, sensory inputs that are no longer behaviorally relevant are gated so as not to interfere with monitoring movement parameters by the primate CNS. (3) SI cortical neurons that may bind together other SI neurons with their rhythmic activity have this activity disrupted at go-cue onset and just prior to movement onset. This observation fits with the hypothesis that prior to behaviorally significant events, the activity of these neurons that may tonically gate other SI neurons is suppressed to allow the monitoring sensory events and the initiation of movements.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 21, 1994
- Accession Number
- ADA288794
Entities
People
- Randall J. Nelson
Organizations
- University of Tennessee