刺激前的β功率介于不同皮层区域的明确和隐含的感知偏差
Carina Forster1,2, Tilman Stephani3,4, Martin Grund3
1Max Planck Institute for Human Cognitive and Brain Sciences, Department of Neurology, Leipzig, Germany. carinaforster0611@gmail.com.
Communications psychology
|June 21, 2025
概括
大脑中的前刺激β振荡预测了感知中的偏差,影响了我们根据期望和过去经验来处理感官信息的方式. 这些大脑节奏是理解决策中的隐性和显式偏见的关键.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 心理学 心理学 心理学
背景情况:
- 感知受到先前的期望和行动的影响.
- 假设刺激前的大脑振荡可以实现这些偏差.
- 了解偏差的神经相关性对于认知神经科学至关重要.
研究的目的:
- 在体感检测中调查隐性 (先前选择) 和显式偏差的刺激前神经相关物.
- 检查前刺激振荡在调解这些偏差中的作用.
- 区分显式与隐式偏见的神经机制.
主要方法:
- 两项脑电图 (EEG) 研究,分别有43名和39名参与者.
- 身体感官接近值检测任务.
- 使用指引刺激概率 (挥发性和稳定的环境) 操纵显式偏差和通过先前选择隐式偏差.
主要成果:
- 行为分析证实了决策标准和信心评级的调整,这些调整是基于指引的概率和先前的选择.
- 在不同的皮层区域 (感官和更高层次) 的前刺激β功率分别预测了显式和隐式偏差.
- 贝塔振荡部分介导了先前选择和刺激概率对检测反应的影响.
结论:
- 在特定的大脑区域的前刺激β振荡作为神经相关的显式和隐式偏差体感知觉的神经相关.
- 贝塔功率的不同神经来源是不同类型的感知偏差的基础.
- 这一发现为预期驱动感知的神经机制提供了洞察力.
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