Perceived hand size and perceived hand weight

IF 2.8 1区心理学 Q1 PSYCHOLOGY, EXPERIMENTAL

Cognition Pub Date : 2024-10-30 DOI:10.1016/j.cognition.2024.105998

Denise Cadete, Vincenzo P. Marino, Elisa R. Ferrè, Matthew R. Longo

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引用次数: 0

Abstract

The dimensions of objects and our body parts influence our perception of the weight of objects in our surroundings. It has been recently described a dramatic underestimation of the perceived weight of the hand. However, little is known on how perceived size informs the perceived weight of our own body parts. Here we investigated the effects of embodying an enlarged and a shrunken hand on perceived hand weight. We manipulated hand size using a visual-tactile illusion with magnifying and minifying mirrors. We then measured perceived hand weight using a psychophysical matching task in which participants estimate if a weight hanged on their wrist feels heavier or lighter than the experienced weight of their hand. Our results indicated that participants tended to underestimate the weight of their hand more when embodying a smaller hand, and less so when embodying a larger hand. That is, the perceived size of the hand plays a role in shaping its perceived weight. Importantly, our results revealed that the perception of the weight of body parts is processed differently from the perception of object weight, demonstrating resistance to the size-weight illusion. We suggest a model based on constant density to elucidate the influence of hand size in determining hand weight.

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感知手的大小和感知手的重量。

物体和身体部位的尺寸会影响我们对周围物体重量的感知。最近有研究表明，人们对手掌重量的感知被严重低估。然而，人们对感知尺寸如何影响我们对自身身体部位重量的感知却知之甚少。在这里，我们研究了放大和缩小的手对手部重量感知的影响。我们利用放大镜和缩小镜的视觉触觉错觉来操纵手的大小。然后，我们使用心理物理匹配任务来测量感知到的手的重量，在这个任务中，参与者要估计挂在他们手腕上的砝码感觉比他们手的经验重量更重还是更轻。我们的结果表明，当参与者的手较小时，他们往往更容易低估自己手的重量，而当他们的手较大时，低估的程度则较低。也就是说，感知到的手的大小对其感知重量有影响。重要的是，我们的研究结果表明，对身体部位重量的感知与对物体重量的感知是不同的，这表明了对大小-重量错觉的抵抗力。我们提出了一个基于恒定密度的模型，以阐明手的大小在决定手的重量方面的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Cognition PSYCHOLOGY, EXPERIMENTAL-

CiteScore

6.40

自引率

5.90%

发文量

283

期刊介绍： Cognition is an international journal that publishes theoretical and experimental papers on the study of the mind. It covers a wide variety of subjects concerning all the different aspects of cognition, ranging from biological and experimental studies to formal analysis. Contributions from the fields of psychology, neuroscience, linguistics, computer science, mathematics, ethology and philosophy are welcome in this journal provided that they have some bearing on the functioning of the mind. In addition, the journal serves as a forum for discussion of social and political aspects of cognitive science.