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在角尾背投影中增加关联性可塑性可以改善对情绪的视觉感知
Sara Borgomaneri1, Marco Zanon2,3, Paolo Di Luzio2
1Centro studi e ricerche in Neuroscienze Cognitive, Dipartimento di Psicologia "Renzo Canestrari", Alma Mater Studiorum Università di Bologna, Cesena Campus, Cesena, Italy. sara.borgomaneri@unibo.it.
Nature communications
|September 22, 2023
概括
加强后上角 (pSTS) 和视觉皮层之间的连接,可以增强面部的情感感知. 神经通路中的这种可塑性是识别面部情绪表情的关键.
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
- 视觉感知 视觉感知 视觉感知
背景情况:
- 后上角 (pSTS) 对于处理情感面部表情至关重要.
- 视觉识别中的递归处理在决策模型中越来越被认可.
- 在psts-to-v1/v2连接中的可塑性对情感感知的影响仍然不清楚.
研究的目的:
- 调查诱导从pSTS到早期视觉皮层 (V1/V2) 的回入连接中的可塑性是否会影响面部情绪的感知.
- 为了确定加强pSTS-to-V1/V2连接是否提高了感知情感面部表情的能力.
主要方法:
- 采用了电生理学记录和非侵入性神经刺激技术的组合.
- 操纵了pSTS和V1/V2.2之间的回入连接的可塑性.
- 测量了情绪感知和相应的电生理活动中的行为变化.
主要成果:
- 加强pSTS-to-V1/V2连接有选择性地改善了面部情绪的感知.
- 观察到pSTS和V1/V2中的电生理活动增加,特别是V1/V2,与感知改善相关.
- 观察到的效应取决于特定的时间刺激参数,这些参数遵循赫布斯原则.
结论:
- 从psts到v1/v2的背向投影对于从面部刺激中感知情绪至关重要.
- 这些通路的功能可塑性可以通过有针对性的关联性可塑性操纵来实现.
- 这项研究提供了神经可塑性在感知面部情绪等复杂的社会线索中的作用的证据.
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