Final Technical Report for Grant N00014-90-J-1070, 1 October 1989-30 September 1992.

Abstract

The work in this project was directed at trying to understand the brain mechanisms that subserve higher visual functions. The approach used involved examining the activity of neurons in the brains of nonhuman primates while they are performing visual tasks that they have been trained to do. One of our primary interests is how populations of neurons create representations that support short term visual memories. To examine this question, we trained monkeys to perform matching tasks in which they are shown visual stimuli that they must remember for short periods. We have found that many neurons in visual cerebral cortex are selectively activated during periods when the animal is keeping a particular stimulus in mind. The activity of these neurons is likely to provide the basis for short term memories, and understanding the origin of this activity and its interactions with sensory signals will be an important step in understanding how the brain implements higher functions such as visual search.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1992
Accession Number
ADA299549

Entities

People

  • John H. Maunsell

Organizations

  • University of Rochester

Tags

DTIC Thesaurus Topics

  • Animals
  • Biological Sciences
  • Brain
  • Cerebral Cortex
  • Cognitive Neuroscience
  • Cognitive Science
  • Computational Neuroscience
  • Information Processing
  • Macaque Monkeys
  • Monkeys
  • Nervous System
  • Neural Pathways
  • Neurosciences
  • Parallel Computing
  • Parallel Processing
  • Perception
  • Visual Cortex

Fields of Study

  • Biology
  • Psychology

Readers

  • Neuroscience
  • Team-Based Human-Centered Cognitive Task Decision Making and Information Performance.