fMRI scanner noise interaction with affective neural processes

Skouras, Stavros, Gray, Marcus, Critchley, Hugo and Koelsch, Stefan (2013) fMRI scanner noise interaction with affective neural processes. PLoS ONE, 8 11: e80564.1-e80564.13. doi:10.1371/journal.pone.0080564

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Author Skouras, Stavros
Gray, Marcus
Critchley, Hugo
Koelsch, Stefan
Title fMRI scanner noise interaction with affective neural processes
Journal name PLoS ONE   Check publisher's open access policy
ISSN 1932-6203
Publication date 2013-11-18
Sub-type Article (original research)
DOI 10.1371/journal.pone.0080564
Open Access Status DOI
Volume 8
Issue 11
Start page e80564.1
End page e80564.13
Total pages 13
Editor Andrea Antal
Place of publication San Francisco, CA, United States
Publisher Public Library of Science
Language eng
Formatted abstract
The purpose of the present study was the investigation of interaction effects between functional MRI scanner noise and affective neural processes. Stimuli comprised of psychoacoustically balanced musical pieces, expressing three different emotions (fear, neutral, joy). Participants (N=34, 19 female) were split into two groups, one subjected to continuous scanning and another subjected to sparse temporal scanning that features decreased scanner noise. Tests for interaction effects between scanning group (sparse/quieter vs continuous/noisier) and emotion (fear, neutral, joy) were performed. Results revealed interactions between the affective expression of stimuli and scanning group localized in bilateral auditory cortex, insula and visual cortex (calcarine sulcus). Post-hoc comparisons revealed that during sparse scanning, but not during continuous scanning, BOLD signals were significantly stronger for joy than for fear, as well as stronger for fear than for neutral in bilateral auditory cortex. During continuous scanning, but not during sparse scanning, BOLD signals were significantly stronger for joy than for neutral in the left auditory cortex and for joy than for fear in the calcarine sulcus. To the authors' knowledge, this is the first study to show a statistical interaction effect between scanner noise and affective processes and extends evidence suggesting scanner noise to be an important factor in functional MRI research that can affect and distort affective brain processes.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Authors' prepress title: "Functional MRI Scanner Noise Interaction with Affective Neural Processes".

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
Centre for Advanced Imaging Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 9 times in Thomson Reuters Web of Science Article | Citations
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Created: Wed, 20 Nov 2013, 01:26:05 EST by Anna Cotroneo on behalf of Centre for Advanced Imaging