Change detection of gradual changes of facial expressions: an fMRI Study

Luis Carlo Bulnes , Kris Baetens, Laurens Van Der Cruyssen, axel cleeremans, Frank Van Overwalle, Marie Vandekerckhove

Onderzoeksoutput: Unpublished abstract

Samenvatting

A key question in emotional and affective consciousness research is how perceptual processing of emotionally relevant material relates to subjective experience and "feelings". This neuroimaging study focuses on the neural correlates of detection of facial expressions and its relationship to subsequent subjective ratings. We presented video morphs of gradual changes of facial expressions (from a neutral to a happy or an angry face) to track the moment where subjects become aware of a new facial display. Subsequently, subjects were invited to (1) identify the change they had detected (accuracy) and to (2) rate the vividness of the detected change (subjective experience). The two questions were presented in random order on every trial after the detection task. A control condition consisted of an abrupt change where faces changed of texture. Preliminary findings reveal that decreased subjective experience of vividness during the perceptual processing in the detection task recruits the anterior prefrontal cortex, an area that has been linked to metacognitive ability, thus to subjective experience. We will discuss the implications of our findings in the context of emotional consciousness as well as present remaining results concerning the antecedents of emotional change detection.
Originele taal-2English
StatusUnpublished - 2014
EvenementTransfer of Knowledge Conference of the European Social Cognition Network 2 - Louvain-la-Neuve, Belgium
Duur: 3 sep 20147 sep 2014

Conference

ConferenceTransfer of Knowledge Conference of the European Social Cognition Network 2
Land/RegioBelgium
StadLouvain-la-Neuve
Periode3/09/147/09/14

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