乐观的人都是相似的:共享的神经表征支持乐观个体之间的插曲性未来思维
Kuniaki Yanagisawa1, Ryusuke Nakai2, Kohei Asano2,3
1Department of Psychology, Graduate School of Humanities, Kobe University, Nada-Ku, Kobe 657-8501, Japan.
概括
在未来思考过程中,乐观的人在中部前额叶皮层 (MPFC) 显示出共同的神经模式. 这种大脑活动有助于他们区分积极和消极的未来事件.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 人格心理学 人格心理学
背景情况:
- 乐观主义通过关注积极的结果,影响面向未来的认知.
- 了解乐观对未来思维的影响的神经基础至关重要.
研究的目的:
- 为了研究大脑如何代表个体差异,在乐观主义调节的插曲性未来思维中研究.
- 探索乐观主义对想象未来事件的影响背后的神经机制.
主要方法:
- 进行了两个功能性MRI (fMRI) 研究.
- 参与者接受了fMRI,同时执行了具有不同情绪价值的插曲性未来思考任务.
- 采用了人际代表性相似性分析和中部前额叶皮层 (MPFC) 活动的多维缩放.
主要成果:
- 乐观的个体在MPFC中表现出类似的神经表征,而不那么乐观的个体则表现出更多的特异性表征.
- MPFC活动清楚地将参考目标和情感价值映射到不同的维度上.
- 情感维度的权重与乐观度得分相关,表明乐观的人更清楚地区分积极的和消极的事件.
结论:
- 在乐观的人群中,MPFC中共享的神经处理支持偶发的未来思维.
- 乐观主义通过不同的神经表现来促进积极和消极的未来事件之间的心理差异化.
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