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Journal of Biomedical Optics

Test–retest reliability of the prefrontal response to affective pictures based on functional near-infrared spectroscopy
Author(s): Yuxia Huang; Mengchai Mao; Zong Zhang; Hui Zhou; Yang Zhao; Lian Duan; Ute Kreplin; Xiang Xiao; Chaozhe Zhu
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Paper Abstract

Functional near-infrared spectroscopy (fNIRS) is being increasingly applied to affective and social neuroscience research; however, the reliability of this method is still unclear. This study aimed to evaluate the test–retest reliability of the fNIRS-based prefrontal response to emotional stimuli. Twenty-six participants viewed unpleasant and neutral pictures, and were simultaneously scanned by fNIRS in two sessions three weeks apart. The reproducibility of the prefrontal activation map was evaluated at three spatial scales (mapwise, clusterwise, and channelwise) at both the group and individual levels. The influence of the time interval was also explored and comparisons were made between longer (intersession) and shorter (intrasession) time intervals. The reliabilities of the activation map at the group level for the mapwise (up to 0.88, the highest value appeared in the intersession assessment) and clusterwise scales (up to 0.91, the highest appeared in the intrasession assessment) were acceptable, indicating that fNIRS may be a reliable tool for emotion studies, especially for a group analysis and under larger spatial scales. However, it should be noted that the individual-level and the channelwise fNIRS prefrontal responses were not sufficiently stable. Future studies should investigate which factors influence reliability, as well as the validity of fNIRS used in emotion studies.

Paper Details

Date Published: 17 January 2017
PDF: 15 pages
J. Biomed. Opt. 22(1) 016011 doi: 10.1117/1.JBO.22.1.016011
Published in: Journal of Biomedical Optics Volume 22, Issue 1
Show Author Affiliations
Yuxia Huang, Beijing Normal Univ. (China)
Mengchai Mao, Beijing Normal Univ. (China)
Zong Zhang, Beijing Normal Univ. (China)
Hui Zhou, Beijing Normal Univ. (China)
Yang Zhao, Beijing Normal Univ. (China)
Lian Duan, Beijing Normal Univ. (China)
Ute Kreplin, Massey Univ. (New Zealand)
Xiang Xiao, Beijing Normal Univ. (China)
Chaozhe Zhu, Beijing Normal University (China)

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