A neuromodulatory role for the human amygdala in processing emotional facial expressions

Clicks: 4
ID: 295254
1998
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Abstract
Localized amygdalar lesions in humans produce deficits in the recognition of fearful facial expressions. We used functional neuroimaging to test two hypotheses: (i) that the amygdala and some of its functionally connected structures mediate specific neural responses to fearful expressions; (ii) that the early visual processing of emotional faces can be influenced by amygdalar activity. Normal subjects were scanned using PET while they performed a gender discrimination task involving static grey-scale images of faces expressing varying degrees of fear or happiness. In support of the first hypothesis, enhanced activity in the left amygdala, left pulvinar, left anterior insula and bilateral anterior cingulate gyri was observed during the processing of fearful faces. Evidence consistent with the second hypothesis was obtained by a demonstration that amygdalar responses predict expression-specific neural activity in extrastriate cortex.
Reference Key
openalex_W2112300402 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors J. P. Morris
Journal Brain research
Year 1998
DOI
10.1093/brain/121.1.47
URL
https://doi.org/10.1093/brain/121.1.47
Keywords Keywords not found

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