无意识信息影响行为表现的两种根本不同的机制:来自fMRI和计算建模的证据
Yongchun Wang1, Meilin Di2, Ya Li1
1School of Psychology, Shaanxi Normal University, Xi'an, 710062, China; Shaanxi Provincial Key Laboratory of Behavior & Cognitive Neuroscience, Xi'an, 710062, China.
NeuroImage
|July 6, 2024
概括
无意识的信息通过影响感觉运动或视觉处理来影响行动,这取决于刺激的相关性. 这项研究阐明了潜意识对表现的认知影响背后的独特机制.
科学领域:
- 认知神经科学 认知神经科学
- 神经成像是一种神经成像.
- 计算建模 计算建模
背景情况:
- 众所周知,无意识的信息会影响行动的执行,特别是在延迟行动指令的情况下.
- 这种损伤发生的确切水平 - 响应或感知 - 仍然是争论的主题.
- 了解这些机制对于理解无意识认知至关重要.
研究的目的:
- 调查无意识信息是否会在响应或感知层面上损害行动表现.
- 区分相关与无关无意识刺激的作用背后的神经机制.
- 调和关于无意识信息对认知任务的影响的相互矛盾的发现.
主要方法:
- 在前后设计中利用功能磁共振成像 (fMRI).
- 采用计算模型来分析行为数据.
- 检查了对无意识信息的反应中的大脑活动,具有不同的刺激-反应关联和相关性.
主要成果:
- 无关的无意识信息激活了与感觉运动处理相关的前叶 (叶).
- 相关的无意识信息激活了皮和皮,与视觉感知处理相关.
- 运动抑制区域显示了对无关,但不相关的刺激的兼容性调制,通过建模支持.
结论:
- 无意识的信息通过不同的神经通路影响行动表现,这取决于刺激的相关性.
- 研究结果区分了由无意识刺激引起的感觉运动和感知处理障碍.
- 这项研究为了解无意识认知如何影响行为提供了一个统一的框架.
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