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Altered task-special connectivity of hippocampus during rt-fMRI neurofeedback training of emotion regulation

Published: 04 June 2020 Publication History

Abstract

Real-time functional magnetic resonance imaging neurofeedback (rt-fMRI NF) provides an effective method for emotion regulation, which has the great potential in clinical treatment. Previous studies mainly use functional connection analysis to obtain information transmission between different brain regions. However, When the neurofeedback task changes, the connection between whole brain and a specific seed region is unknown. Psychophysiological interaction (PPI) is the efficient way which can explore the task-specific connection strength under different conditions. In this study, we designed an experiment that used rt-fMRI NF to regulate emotions in healthy people, all the subjects were divided into experimental group and control group. They were provided with the blood oxygenation level dependent (BOLD) signal from hippocampus or intraparietal sulcus. We performed PPI to analyze connection with left hippocampus under different psychological conditions after NF training for both groups. Results show that when "regulate" compared to "view" in experimental group, the significantly connection areas with left hippocampus were right superior and middle frontal gyrus, cingulate gyrus, temporal lobe, left postcentral and occipital regions, there was no connection significantly in the control group. These results demonstrate the feasibility of using the hippocampus as a feedback brain region for emotion regulation. In general, PPI reveals the interaction between different brain regions and psychological factors, which might be an objective way of assessing the success of neurofeedback.

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    ICIAI '20: Proceedings of the 2020 the 4th International Conference on Innovation in Artificial Intelligence
    May 2020
    271 pages
    ISBN:9781450376587
    DOI:10.1145/3390557
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    • The Hong Kong Polytechnic: The Hong Kong Polytechnic University
    • Xi'an Jiaotong-Liverpool University: Xi'an Jiaotong-Liverpool University

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    New York, NY, United States

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    Published: 04 June 2020

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    Author Tags

    1. emotion regulation
    2. hippocampus
    3. neurofeedback
    4. psychophysiological interaction
    5. real-time functional magnetic resonance imaging

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