Event‐related alpha power in early stage of facial expression processing in social anxiety: Influence of language context

Author:

Song Sutao12ORCID,Liu Aixin23ORCID,Gao Zeyuan2,Tian Xiaodong1,Zhu Lingkai1,Shang Haiqing2,Gao Shihao2,Zhang Mingxian24,Zhao Shimeng2,Xiao Guanlai2,Zheng Yuanjie1,Ge Ruiyang5

Affiliation:

1. School of Information Science and Engineering Shandong Normal University Jinan China

2. School of Education and Psychology University of Jinan Jinan China

3. Department of Psychology Soochow University Suzhou China

4. Center for Study of Applied Psychology, School of Psychology South China Normal University Guangzhou China

5. Department of Psychiatry University of British Columbia Vancouver British Columbia Canada

Abstract

AbstractAccurate interpretation of the emotional information conveyed by others' facial expressions is crucial for social interactions. Event‐related alpha power, measured by time‐frequency analysis, is a frequently used EEG index of emotional information processing. However, it is still unclear how event‐related alpha power varies in emotional information processing in social anxiety groups. In the present study, we recorded event‐related potentials (ERPs) while participants from the social anxiety and healthy control groups viewed facial expressions (angry, happy, neutral) preceded by contextual sentences conveying either a positive or negative evaluation of the subject. The impact of context on facial expression processing in both groups of participants was explored by assessing behavioral ratings and event‐related alpha power (0–200 ms after expression presentation). In comparison to the healthy control group, the social anxiety group exhibited significantly lower occipital alpha power in response to angry facial expressions in negative contexts and neutral facial expressions in positive contexts. The influence of language context on facial expression processing in individuals with social anxiety may occur at an early stage of processing.

Funder

Natural Science Foundation of Shandong Province

Publisher

Wiley

Subject

Experimental and Cognitive Psychology,Neuropsychology and Physiological Psychology,Biological Psychiatry,Cognitive Neuroscience,Developmental Neuroscience,Endocrine and Autonomic Systems,Neurology,Experimental and Cognitive Psychology,Neuropsychology and Physiological Psychology,General Neuroscience

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