快速退出威胁动物是特定于运动的,并通过类似反射的神经处理进行介导
Henry Railo1, Nelli Kraufvelin1, Jussi Santalahti2
1Department of Psychology and Speech Language Pathology, University of Turku, Assistentinkatu 7, 20014 Finland; Turku Brain and Mind Centre, University of Turku, Finland.
NeuroImage
|November 3, 2023
概括
人类对像蛇和蜘蛛这样的威胁动物表现出快速的退出反应,这种反应是由早期的注意力过程中介导的. 后来对威胁特征的有意识关注可以减缓逃生行为.
科学领域:
- 认知心理学 认知心理学
- 神经科学是一个神经科学.
- 动物行为 动物行为
背景情况:
- 威胁自动吸引人类的注意力.
- 人类对威胁的自动行为反应仍然未被证明.
- 动物的基本行为包括对危险刺激的反应.
研究的目的:
- 研究人类对威胁性刺激的自动行为反应.
- 检查注意力过程在快速戒断中的作用.
- 探索威胁感知和响应的个体差异.
主要方法:
- 利用了一种新的自然主义范式,用可怕 (蛇,蜘蛛) 和不可怕 (鸟,蝶) 动物的图像.
- 测量了手臂撤回速度和加速度.
- 采用脑电图 (EEG) 来记录神经活动,特别是早期的感官放大和早期的后阴性 (EPN).
主要成果:
- 与鸟类和蝶图像相比,参与者在蛇和蜘蛛图像中表现出更快,更加速的手臂撤退.
- 退出行为是特定的,在方法或按任务中没有差异.
- 感知厌恶的个体差异与戒断速度相关.
- 早期的感官放大 (40-110毫秒) 与更快的戒断有关.
- 较强的EPN (200-240毫秒) 与更慢的戒断相关,这表明注意力脱节问题.
结论:
- 从威胁动物的快速行为退出是由反射式的注意力处理介导的.
- 早期的注意力放大促进了快速逃跑.
- 后来对威胁特征的有意识关注可能会阻碍退出速度.
- 这些发现提供了对威胁回避背后的神经认知机制的洞察.
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