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青手幻觉:扭曲的手形状在倒置的呈现方式

Shuichiro Taya¹, Achille Pasqualotto²

¹Hiyoshi Psychology Laboratory, Keio University, Japan.

|March 3, 2025

概括

青手幻觉 (FHI) 使倒置的手照片看起来更短. 这项研究量化了FHI,没有发现主导手效应,这表明感知常数减弱.

科学领域:

心理学心理学心理学
神经科学是一个神经科学.
视觉感知视觉感知视觉感知

背景情况:

青手幻觉 (FHI) 描述了视觉扭曲,其中一个手的倒置图像似乎被缩短的手指压.
了解FHI可能会提供对视觉感知和大脑对身体图像的处理的见解.

研究的目的:

量化测量青手幻觉的大小.
为了调查手的优势是否影响青手幻觉的强度.

主要方法:

这项研究采用了恒定刺激的方法来测量扭转与直立手的图像中感知到手指的缩短.
参与者看了一张手指伸出的手的背部照片.

主要成果:

与直立图像相比,倒置手图像中的手指被认为平均比直立图像短约5%.
在主导和非主导手之间,青手幻觉的强度没有显著差异.

结论:

青手幻觉可以可靠量化,显示出一致的感知扭曲.
这些发现表明,青手幻觉不受手掌优势的影响.
一个提出的假设是,FHI是由于从不同寻常的角度观察手的感知常数减少而产生的.

关键词:

青手幻觉青手幻觉多感官互动是多感官的互动.感知的一致性感知的一致性感知推理感知推理空间感知空间感知视觉幻觉是一种视觉幻觉.

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