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催产素在早期感知突出性归因期间调节神经活动

Andreia F Santiago¹, Maciej Kosilo², Carlotta Cogoni²

¹Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal; William James Center for Research, ISPA - Instituto Universitário, Lisbon, Portugal.

Psychoneuroendocrinology

|January 9, 2024

概括

鼻内催产素 (OT) 影响大脑对刺激的早期反应,不论社会背景或奖励如何. 这表明OTOT.

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
心理药理学心理药理学

背景情况:

催产素 (OT) 假设可以增强人类认知中的突出归因.
在社会与非社会背景下OT的具体作用及其对突出处理的时间影响仍然不清楚.
现有的理论建议社会突出性或一般方法撤回机制对OT的影响.

研究的目的:

调查鼻内催产素 (inOT) 是否对社会和非社会刺激的突出性归因有不同的影响.
检查inOT对神经突出处理的影响的时间进程.
测试关于OT在认知中的作用的竞争假设,包括三相模型.

主要方法:

一个双盲,安慰剂控制的,在54名男性参与者之间进行实验.
使用了一个修改的社会突出归因任务 (sSAT),结合了脑电图 (EEG).
给参与者提供了情绪化的社会 (恐惧的面孔) 和非情绪化的非社会 (果实) 刺激,通过货币强化概率来匹配动机突出性.

主要成果:

内鼻OT调节早期EEG组件 (N170振幅,P2b延迟),独立于刺激的社交性或强化概率.
与恐惧相关的社交性影响了多个EEG组件 (N170,P2b,P3b) 的突出处理.
后期调制的晚期EEG组件 (LPP) 的强化概率.

结论:

在早期感知过程中,催产素对神经活动的影响可能发生在不考虑社会或奖励背景的情况下.
结果部分支持OT的三相模型,表明早期的,独立于背景的突出处理.
该研究不支持早期突出处理的社会突出性或一般方法撤回假设.

关键词:

在ERP上,你会得到更多的信息.情绪情绪情绪情绪动机动机动机氧化素是一种氧化素.强化学习是一种强化学习.社会突出性的社会突出性

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