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The effect of selective attention upon neuronal activity in the posterior parietal and inferior temporal cortex. Takayuki SATO 1 1Department of Behavioral Physiology, Tokyo Metropolitan Institute for Neurosciences pp.804-813
Published Date 1986/10/10
DOI https://doi.org/10.11477/mf.1431905827
  • Abstract
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The changes in neuronal responses to visual stimulus in attentive behavior were compared between the two associative cortices, the posterior parietal cortex (PG) and the inferior temporal cortex (TE) of the macaque monkey. Neurons in the PG showed enhanced response to the light stimulus which was used as a target of saccardic eye movement or of hand reaching. They also showed the enhanced response to the light stimulus to which the animal must shift his attention without eye movement in a peripheral attention task.These phenomena suggest that the process of atten-tion in the parietal associative cortex related to selecting important sensory information or forming a wide range of behavior rather than forming a fixed movement. Visual responses of parietal neurons was also enhanced during attentive eye fixation, and this enhancement depended upon the gaze direction. However this enhancement did not appear during spontaneous eye positioning. The activity of these neurons seemed to be dependent not only on the convergent inputs from retina and eye position, but also on the process of attention or forming gazing behavior.


Copyright © 1986, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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