Authors
M.J. Banissy
D.A. Sauter
J. Ward
J.E. Warren
V. Walsh
S.K. Scott
Date (dd-mm-yyyy)
2010
Title
Suppressing sensorimotor activity modulates the discrimination of auditory emotions but not speaker identity
Journal
The Journal of Neuroscience
Volume
30
Publication Year
2010
ISSN
0270-6474
Issue number
41
Document type
Article*
Faculty
Faculty of Social and Behavioural Sciences (FMG)
Abstract
Our ability to recognize the emotions of others is a crucial feature of human social cognition. Functional neuroimaging studies indicate that activity in sensorimotor cortices is evoked during the perception of emotion. In the visual domain, right somatosensory cortex activity has been shown to be critical for facial emotion recognition. However, the importance of sensorimotor representations in modalities outside of vision remains unknown. Here we use continuous theta-burst transcranial magnetic stimulation (cTBS) to investigate whether neural activity in the right postcentral gyrus (rPoG) and right lateral premotor cortex (rPM) is involved in nonverbal auditory emotion recognition. Three groups of participants completed same-different tasks on auditory stimuli, discriminating between the emotion expressed and the speakers' identities, before and following cTBS targeted at rPoG, rPM, or the vertex (control site). A task-selective deficit in auditory emotion discrimination was observed. Stimulation to rPoG and rPM resulted in a disruption of participants' abilities to discriminate emotion, but not identity, from vocal signals. These findings suggest that sensorimotor activity may be a modality-independent mechanism which aids emotion discrimination.
URL
go to publisher's site
Permalink
https://hdl.handle.net/11245/1.369929
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