前刺激微状态和身体信号独立地影响在歧视值的感知意识
Viviana Leupin1, Juliane Britz2
1Department of Psychology, University of Fribourg, University of Fribourg, Rue P.-A. Faucigny 2, Fribourg, CH-1700, Switzerland.
Brain topography
|August 28, 2025
概括
大脑和身体状态独立地影响视觉感知. 特定的脑电图微态 (如D) 和呼吸阶段 (如吸入) 与无意识和兴奋相对应,但没有相互作用.
科学领域:
- 神经科学
- 认知科学
- 心理学
背景情况:
- 感知意识受到大脑状态 (EEG微状态) 和身体信号 (心脏,呼吸循环) 的影响.
- 大脑和身体状态之间的相互作用在调节意识方面仍然不清楚.
研究的目的:
- 调查预刺激EEG微态和心脏/呼吸阶段是否共同或独立地影响对视觉刺激的意识.
- 确定大脑和身体状态对主观意识的具体贡献.
主要方法:
- 使用定向区分任务来评估对值视觉刺激的认识.
- 在考虑心脏和呼吸阶段时,分析了预刺激EEG微状态以确定有意识与无意识的试验.
- 进行了两种条件的统计比较.
主要成果:
- 在无意识的试验中,与注意力网络相关的正规微态D更频繁.
- 在吸入过程中,佳能微态A显示出更大的变异,表明兴奋增加.
- 在身体阶段和意识之间没有发现显著的相互作用,这表明独立的影响.
结论:
- 刺激前的大脑状态和身体阶段独立调节感知意识.
- 微观状态D预示着无意识, 而吸入与兴奋的增加有关.
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