TY - GEN
T1 - Underlying modulators of frontal global field potentials in emotion regulation
T2 - 9th International IEEE EMBS Conference on Neural Engineering, NER 2019
AU - Fang, Feng
AU - Houston, Michael
AU - Walker, Sasha
AU - Nguyen, Thinh
AU - Potter, Tom
AU - Zhang, Yingchun
N1 - Funding Information:
This work was supported by University of Houston. Feng Fang, Michael Houston, Sasha Walker, Thinh Nguyen and Tom Potter are with the Department of Biomedical Engineering, University of Houston, Houston, TX 77204 USA. Yingchun Zhang is with the Department of Biomedical Engineering, University of Houston, Houston, TX 77204 USA. (phone: 713-743-6127; Fax: 713-743-0226; e-mail: yzhang94@uh.edu).
Publisher Copyright:
© 2019 IEEE.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019/5/16
Y1 - 2019/5/16
N2 - Simultaneous EEG-fMRI has been applied across many functional brain studies to observe the spatiotemporal patterns of cortical activity that support complex cognitive tasks. Emotion regulation becomes a major topic of interest among these studies, with a particular focus of the late positive potential (LPP), which appears over parietal areas during emotion processing. While prefrontal areas have been linked to the LPP, the manner of their involvement remains poorly understood. In this study, EEG-informed fMRI was applied to investigate the cortical areas that modulate the frontal LPP during emotion regulation. Simultaneous EEG and fMRI data were collected during reappraisal-based emotion regulation, with EEG data analyzed from 400-600ms after task onset. Group Independent Component Analysis (ICA) was applied to denoise the EEG signal and extract common features across trials for all subjects and conditions. Extracted features were then used as regressors in general linear model (GLM)-based fMRI analysis. Results indicate that the septum pellucidum, right insula and right subcallosal gyrus are involved in the modulation of the LPP amplitude in prefrontal regions, as it is seen during reappraisal. Results align with previous emotion reappraisal studies and provide evidence for the use of IC-based EEG-informed fMRI in the study of emotional regulation.
AB - Simultaneous EEG-fMRI has been applied across many functional brain studies to observe the spatiotemporal patterns of cortical activity that support complex cognitive tasks. Emotion regulation becomes a major topic of interest among these studies, with a particular focus of the late positive potential (LPP), which appears over parietal areas during emotion processing. While prefrontal areas have been linked to the LPP, the manner of their involvement remains poorly understood. In this study, EEG-informed fMRI was applied to investigate the cortical areas that modulate the frontal LPP during emotion regulation. Simultaneous EEG and fMRI data were collected during reappraisal-based emotion regulation, with EEG data analyzed from 400-600ms after task onset. Group Independent Component Analysis (ICA) was applied to denoise the EEG signal and extract common features across trials for all subjects and conditions. Extracted features were then used as regressors in general linear model (GLM)-based fMRI analysis. Results indicate that the septum pellucidum, right insula and right subcallosal gyrus are involved in the modulation of the LPP amplitude in prefrontal regions, as it is seen during reappraisal. Results align with previous emotion reappraisal studies and provide evidence for the use of IC-based EEG-informed fMRI in the study of emotional regulation.
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U2 - 10.1109/NER.2019.8716997
DO - 10.1109/NER.2019.8716997
M3 - Conference contribution
AN - SCOPUS:85066757983
T3 - International IEEE/EMBS Conference on Neural Engineering, NER
SP - 949
EP - 952
BT - 9th International IEEE EMBS Conference on Neural Engineering, NER 2019
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 20 March 2019 through 23 March 2019
ER -