催眠暗示与身体意识的感官调节对比
C Apelian1,2, D B Terhune3,4, F De Vignemont1
1Département d'études Cognitives, Institut Jean Nicod, ENS, EHESS, CNRS, PSL University, Paris, France.
PloS one
|September 12, 2023
概括
认知因素,如催眠暗示,显著改变身体的感知,甚至比感官输入. 这项研究探讨了自上而下的和自下而上的影响如何塑造我们对身体尺寸的感觉.
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
- 身体感知 身体感知
背景情况:
- 身体意识整合了感官输入,但也受到认知因素的影响.
- 认知影响对身体表现的确切作用尚不清楚.
研究的目的:
- 系统地比较感官 (自下而上) 和认知 (自上而下) 操纵对身体部位大小估计的影响.
- 调查催眠暗示与体感幻觉对身体表现的影响.
主要方法:
- 使用重复测量设计,采用拉克纳幻觉 (双肌振动) 来进行自下而上的刺激,并使用催眠暗示来进行自上而下的影响.
- 通过感知和运动任务评估了参与者的估计身体部位大小.
- 一个虚假的拉克纳幻觉作为一个主动控制条件.
主要成果:
- 催眠暗示与假条件相比,在感知和运动任务中显著诱导了幻觉.
- 催眠暗示效应的规模超过了拉克纳幻觉的影响.
- 拉克纳幻觉只在相对于假设条件的感知任务中表现出显著的影响.
- 幻觉的大小与任务和条件相关,表明共享的潜在机制.
结论:
- 认知因素,特别是催眠暗示,对身体表现有很大的影响.
- 独立但相互作用的神经过程可能是身体表现中的感知和行动的基础.
- 这项研究强调了认知过程在塑造身体意识的低层面方面发挥的重要作用.
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