神经机制调解乐观偏见的神经机制
Tali Sharot1, Alison M Riccardi, Candace M Raio
1Department of Psychology, New York University, New York 10003, USA.
Nature
|October 26, 2007
概括
我们的大脑通过增加像杏仁体和面皮前带皮层这样的情绪中心的活动来产生乐观偏见,当我们设想积极的未来事件时.
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
- 情感科学是一种情感科学.
背景情况:
- 人类表现出普遍的乐观偏见,尽管缺乏证据,但始终期待未来的积极结果.
- 这种偏见表现为低估负面生活事件 (例如,离婚) 和高估积极前景 (例如,职业成功).
- 了解乐观偏见的神经基础至关重要,特别是考虑到它与与抑郁症相关的悲观主义的反向关系.
研究的目的:
- 研究负责产生人类乐观主义偏见的神经机制.
- 确定特定的大脑区域参与预期积极的未来事件.
- 探索大脑活动,特征乐观和情绪调节之间的关系.
主要方法:
- 利用神经成像技术测量大脑激活模式.
- 当参与者想象积极的与负面的未来事件时,他们比较了神经反应.
- 特定区域的相关大脑活动与特征乐观的个体差异.
主要成果:
- 在想象积极的未来事件时,观察到杏仁体和面额前带状皮层 (rACC) 的增强激活.
- 这些区域对于处理情绪突出性至关重要,并与乐观偏见有关.
- 在rACC中的活动与个体特征乐观程度直接相关.
结论:
- 乐观偏见是由特定的大脑区域参与情绪突出监测的介导.
- 情绪和自传信息的有效整合和调节支持健康个体对未来事件的积极预测.
- 与乐观偏见相关的神经模式与抑郁症中观察到的不同,突出了乐观和悲观的不同机制.
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