Evidence map›Paper›PMID 40045100›Full record

ArticleCognitive, affective & behavioral neuroscience2025

Acute psychological stress promotes implicit aggression: Evidence from behavior and ERPs.

Yu Zhang, Xiaoyu Chen, Yuncheng Jia, Yixin Duan, Meihe Liu, Qingyu Xu, Lingrong Jia, Lili Wu

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Article in Cognitive, affective & behavioral neuroscience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Yu Zhang *Department of Developmental Psychology of Armyman, School of Psychology, Army Medical University, Chongqing, 400038, China.
Xiaoyu Chen *Research Center of Brain and Cognitive Neuroscience, Liaoning Normal University, Dalian, China.
Yuncheng Jia *College of National Culture and Cognitive Science, Guizhou Minzu University, Guiyang, China.
Yixin DuanResearch Center of Brain and Cognitive Neuroscience, Liaoning Normal University, Dalian, China.
Meihe LiuResearch Center of Brain and Cognitive Neuroscience, Liaoning Normal University, Dalian, China.
Qingyu XuResearch Center of Brain and Cognitive Neuroscience, Liaoning Normal University, Dalian, China.
Lingrong JiaResearch Center of Brain and Cognitive Neuroscience, Liaoning Normal University, Dalian, China.
Lili WuDepartment of Developmental Psychology of Armyman, School of Psychology, Army Medical University, Chongqing, 400038, China. wulili080241@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Acute stress affects explicit aggressive behavior through two distinct behavioral patterns: "fight or flight" and "tend and befriend". However, the impact of acute stress on implicit aggression remains less explored. We investigated the effect of acute stress on implicit aggression with event-related potentials (ERPs; N2, P2, P3, and N400) measures. A total of 55 healthy individuals were randomly allocated to either the Trier Social Stress Test (TSST) group (N = 31, 14 females) or a neutral control group (N = 24, 15 females). Following this, participants completed the Single Target-Implicit Association Test (ST-IAT) while electroencephalogram (EEG) data were collected. We found that acute stress strengthens the associations between self-related words and aggressive words relative to nonaggressive words. At the neural level, N2 and N400 components amplitudes were significantly smaller following the TSST relative to the control group. The compatible task in the ST-IAT elicited a larger P2 amplitude than that in the incompatible task. Our results support the model of "fight or flight" where humans choose to attack or escape to survive under stress.

Indexed as

AggressionBrainEvoked PotentialsStress, PsychologicalAdultElectroencephalographyFemaleHumansMaleYoung AdultAcute stressEvent-related potentialsFight or flightImplicit aggression

Identifiers

PMID40045100

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