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Frontal Brain Asymmetry and Negative Emotion Regulation

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2008, v.20 no.4, pp.203-221
https://doi.org/10.22172/cogbio.2008.20.4.001


Abstract

This research examined the role of midfrontal EEG asymmetry in the regulation of negative emotions. Frontal brain asymmetry(FBA), heart rate(HR), respiratory sinus asymmetry(RSA), and skin conductance level(SCL) were recorded during baseline, relaxation, worry induction, anticipation of impromptu speech task and recovery. The relative left activation group showed lower distress rating than the right activation group at the end of the anticipation period and after the speech task. Participants with relatively higher left activation showed lower HR, and higher RSA than those with relatively higher right activation group during worry and anticipation task. The relatively higher right activation delayed recovery from higher HR and lower RSA due to speech task. Compared with baseline, relaxation increased left midfrontal cortex activity, but both worrying and anticipation decreased left midfrontal EEG activity. Worrying and anticipation was associated with greater HR, lower RSA and greater SCR compared with both baseline and relaxation. These findings support the role of FBA in the negative emotion regulation. Implications and limitations of the research are discussed.

keywords
중전두피질 비대칭성, 걱정, 불안, 심박률, 호흡공동부정맥, 피부전도반응, EEG, FBA, HR, RSA, SCL, worry, anticipation, negative emotion regulation

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