Smith, A. T., Singh, Krish Devi and Greenlee, M. W. 2000. Attentional suppression of activity in the human visual cortex. Neuroreport 11 (2) , pp. 271-277. |
Abstract
We have used fMRI to examine the nature of the changes that occur in the human visual cortex when an observer attends to a particular location in the visual image. Previous studies have shown that the magnitude of the response to a visual stimulus is increased when the observer attends to the stimulus. We show that, in addition, attention to a particular location results in a widespread suppression of activity levels at all other locations. This suggests that a key mechanism of attentional modulation may be that spontaneous (baseline) levels of neural activity are adjusted in a position-dependent manner across the entire visual field.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Psychology Neuroscience and Mental Health Research Institute (NMHRI) |
Subjects: | B Philosophy. Psychology. Religion > BF Psychology R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry |
Uncontrolled Keywords: | Attentional modulation, fMRI, Visual cortex |
Publisher: | Lippincott, Williams & Wilkins |
ISSN: | 0959-4965 |
Last Modified: | 04 Jun 2017 04:10 |
URI: | http://orca.cf.ac.uk/id/eprint/33916 |
Citation Data
Cited 190 times in Google Scholar. View in Google Scholar
Cited 183 times in Scopus. View in Scopus. Powered By Scopus® Data
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