Emotional expressions evoke a differential response in the fusiform face area

It is widely assumed that the fusiform face area (FFA), a brain region specialised for face perception, is not involved in processing emotional expressions. This assumption is based on the proposition that the FFA is involved in face identification and only processes features that are invariant acro...

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Main Authors: Bronson Blake Harry, Mark eWilliams, Chris eDavis, Jeesun eKim
Format: Article
Language:English
Published: Frontiers Media S.A. 2013-10-01
Series:Frontiers in Human Neuroscience
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fnhum.2013.00692/full
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author Bronson Blake Harry
Mark eWilliams
Chris eDavis
Jeesun eKim
author_facet Bronson Blake Harry
Mark eWilliams
Chris eDavis
Jeesun eKim
author_sort Bronson Blake Harry
collection DOAJ
description It is widely assumed that the fusiform face area (FFA), a brain region specialised for face perception, is not involved in processing emotional expressions. This assumption is based on the proposition that the FFA is involved in face identification and only processes features that are invariant across changes due to head movements, speaking and expressing emotions. The present study tested this proposition by examining whether the response in the human FFA varies across emotional expressions with functional magnetic resonance imaging and brain decoding analysis techniques (n = 11). A one versus all classification analysis showed that most emotional expressions that participants perceived could be reliably predicted from the neural pattern of activity in left and the right FFA, suggesting that the perception of different emotional expressions recruit partially non-overlaping neural mechanisms. In addition, emotional expressions could also be decoded from the pattern of activity in the early visual cortex (EVC), indicating that retinotopic cortex also shows a differential response to emotional expressions. These results cast doubt on the idea that the FFA is involved in expression invariant face processing, and instead indicate that emotional expressions evoke partially de-correlated signals throughout occipital and posterior temporal cortex.
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spelling doaj.art-fa9bda81f97f4cebb9b4707d9c21c9ec2022-12-22T00:45:02ZengFrontiers Media S.A.Frontiers in Human Neuroscience1662-51612013-10-01710.3389/fnhum.2013.0069238453Emotional expressions evoke a differential response in the fusiform face areaBronson Blake Harry0Mark eWilliams1Chris eDavis2Jeesun eKim3Bangor UniversityMacquarie UniversityUniversity of Western SydneyUniversity of Western SydneyIt is widely assumed that the fusiform face area (FFA), a brain region specialised for face perception, is not involved in processing emotional expressions. This assumption is based on the proposition that the FFA is involved in face identification and only processes features that are invariant across changes due to head movements, speaking and expressing emotions. The present study tested this proposition by examining whether the response in the human FFA varies across emotional expressions with functional magnetic resonance imaging and brain decoding analysis techniques (n = 11). A one versus all classification analysis showed that most emotional expressions that participants perceived could be reliably predicted from the neural pattern of activity in left and the right FFA, suggesting that the perception of different emotional expressions recruit partially non-overlaping neural mechanisms. In addition, emotional expressions could also be decoded from the pattern of activity in the early visual cortex (EVC), indicating that retinotopic cortex also shows a differential response to emotional expressions. These results cast doubt on the idea that the FFA is involved in expression invariant face processing, and instead indicate that emotional expressions evoke partially de-correlated signals throughout occipital and posterior temporal cortex.http://journal.frontiersin.org/Journal/10.3389/fnhum.2013.00692/fullEmotionsfMRIFusiform face areaface processingmultivariate pattern analysis
spellingShingle Bronson Blake Harry
Mark eWilliams
Chris eDavis
Jeesun eKim
Emotional expressions evoke a differential response in the fusiform face area
Frontiers in Human Neuroscience
Emotions
fMRI
Fusiform face area
face processing
multivariate pattern analysis
title Emotional expressions evoke a differential response in the fusiform face area
title_full Emotional expressions evoke a differential response in the fusiform face area
title_fullStr Emotional expressions evoke a differential response in the fusiform face area
title_full_unstemmed Emotional expressions evoke a differential response in the fusiform face area
title_short Emotional expressions evoke a differential response in the fusiform face area
title_sort emotional expressions evoke a differential response in the fusiform face area
topic Emotions
fMRI
Fusiform face area
face processing
multivariate pattern analysis
url http://journal.frontiersin.org/Journal/10.3389/fnhum.2013.00692/full
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