An ERP investigation of age differences in the negativity bias for self-relevant and non-self-relevant stimuli

NEUROBIOLOGY OF AGING

卷:103

Article

Fields, Eric C.^1,2  Bowen, Holly J.³  Daley, Ryan T.¹  Parisi, Katelyn R.^1,2  Gutchess, Angela²  Kensinger, Elizabeth A.¹ 

[1] Boston Coll, Chestnut Hill, MA 02467 USA

[2] Brandeis Univ, Waltham, MA USA

[3] Southern Methodist Univ, Dallas, TX USA

关键词: Event-related potentials;    ERP;    Negativity bias;    Positivity effect;    Self;    Self-relevance;    LPP;   

DOI  :  10.1016/j.neurobiolaging.2021.02.009

来源: Elsevier

【 摘 要 】

As we age, we show increased attention and memory for positive versus negative information, and a key event-related potential (ERP) marker of emotion processing, the late positive potential (LPP), is sensitive to these changes. In young adults the emotion effect on the LPP is also quite sensitive to the selfrelevance of stimuli. Here we investigated whether the shift toward positive stimuli with age would be magnified by self-relevance. Participants read 2-sentence scenarios that were either self-relevant or non- self-relevant with a neutral, positive, or negative critical word in the second sentence. The LPP was largest for self-relevant negative information in young adults, with no significant effects of emotion for non-selfrelevant scenarios. In contrast, older adults showed a smaller negativity bias, and the effect of emotion was not modulated by self-relevance. The 3-way interaction of age, emotion, and self-relevance suggests that the presence of self-relevant stimuli may reduce or inhibit effects of emotion for non-self-relevant stimuli on the LPP in young adults, but that older adults do not show this effect to the same extent. (c) 2021 Elsevier Inc. All rights reserved.

【 授权许可】

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