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Temporal course of emotional negativity bias: an ERP study.
Neurosci Lett. 2006 May 01; 398(1-2):91-6.NL

Abstract

There is considerable evidence that people are especially sensitive to emotionally negative materials. However, the temporal course of the negativity bias is still unclear. To address this issue, we observed the changes of P2, late positive components (LPC) and lateralized readiness potential (LRP) under positive, negative and neutral conditions, with International Affective Picture System (IAPS) pictures as emotional stimuli. We found that the amplitude of P2 in the negative block was significantly larger than that in the positive block, indicating that the attentional negativity bias occured very early in emotion perception. The LPC amplitude evoked by negative pictures was larger than that by positive and neutral pictures, suggesting that the negativity bias also occurred in a later evaluation stage of emotion processing. The response-locked LRP interval was shortest in the block of negative pictures, indicating that the negative contents elicited a reaction priming effect. Above all, this research showed that emotional negativity bias could occur in several temporal stages distinguished by attention, evaluation and reaction readiness periods.

Authors+Show Affiliations

National Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Haidian District, Beijing 100875, China.No affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16446031

Citation

Huang, Yu-Xia, and Yue-Jia Luo. "Temporal Course of Emotional Negativity Bias: an ERP Study." Neuroscience Letters, vol. 398, no. 1-2, 2006, pp. 91-6.
Huang YX, Luo YJ. Temporal course of emotional negativity bias: an ERP study. Neurosci Lett. 2006;398(1-2):91-6.
Huang, Y. X., & Luo, Y. J. (2006). Temporal course of emotional negativity bias: an ERP study. Neuroscience Letters, 398(1-2), 91-6.
Huang YX, Luo YJ. Temporal Course of Emotional Negativity Bias: an ERP Study. Neurosci Lett. 2006 May 1;398(1-2):91-6. PubMed PMID: 16446031.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Temporal course of emotional negativity bias: an ERP study. AU - Huang,Yu-Xia, AU - Luo,Yue-Jia, Y1 - 2006/01/30/ PY - 2005/06/11/received PY - 2005/12/21/revised PY - 2005/12/21/accepted PY - 2006/2/1/pubmed PY - 2006/5/11/medline PY - 2006/2/1/entrez SP - 91 EP - 6 JF - Neuroscience letters JO - Neurosci Lett VL - 398 IS - 1-2 N2 - There is considerable evidence that people are especially sensitive to emotionally negative materials. However, the temporal course of the negativity bias is still unclear. To address this issue, we observed the changes of P2, late positive components (LPC) and lateralized readiness potential (LRP) under positive, negative and neutral conditions, with International Affective Picture System (IAPS) pictures as emotional stimuli. We found that the amplitude of P2 in the negative block was significantly larger than that in the positive block, indicating that the attentional negativity bias occured very early in emotion perception. The LPC amplitude evoked by negative pictures was larger than that by positive and neutral pictures, suggesting that the negativity bias also occurred in a later evaluation stage of emotion processing. The response-locked LRP interval was shortest in the block of negative pictures, indicating that the negative contents elicited a reaction priming effect. Above all, this research showed that emotional negativity bias could occur in several temporal stages distinguished by attention, evaluation and reaction readiness periods. SN - 0304-3940 UR - https://www.unboundmedicine.com/medline/citation/16446031/Temporal_course_of_emotional_negativity_bias:_an_ERP_study_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3940(05)01461-8 DB - PRIME DP - Unbound Medicine ER -