The role of hand size in body representation: a developmental investigation.
The role of hand size in body representation: a developmental investigation.
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DOI：
10.1038/s41598-022-23716-6
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发表时间：
2022-11-11
影响因子：
4.6
通讯作者：
中科院分区：
文献类型：
--
作者：
了解自己的身体尺寸是身体表征的一个重要方面，既可以影响环境，也可以限制身体所有权。然而，身体尺寸的表示可能有些可塑性，特别是考虑到儿童时期的身体成长。在这里，我们报告了一项关于手的大小在身体表征（身体所有权感、手位置的感知和自己的手大小的感知）中的作用的发展调查。使用橡胶手错觉范式，本研究在三个年龄组（6至7岁、12至13岁和成人；N = 229）中使用了不同的假手尺寸（典型尺寸的60%、80%、100%、120%或140%）。我们没有发现任何证据表明手的大小限制了所有权或位置：参与者所体现的手比自己的手大或小，并且确实判断自己的手在幻觉后改变了大小。儿童和青少年比成年人更多地体现出假手，更倾向于感觉自己的手已经改变了大小。青少年对多感官信息特别敏感。总之，我们发现自己身体尺寸的表征具有很大的可塑性，部分支持了儿童的表征比成人更宽松的假设。
Knowledge of one’s own body size is a crucial facet of body representation, both for acting on the environment and perhaps also for constraining body ownership. However, representations of body size may be somewhat plastic, particularly to allow for physical growth in childhood. Here we report a developmental investigation into the role of hand size in body representation (the sense of body ownership, perception of hand position, and perception of own-hand size). Using the rubber hand illusion paradigm, this study used different fake hand sizes (60%, 80%, 100%, 120% or 140% of typical size) in three age groups (6- to 7-year-olds, 12- to 13-year-olds, and adults; N = 229). We found no evidence that hand size constrains ownership or position: participants embodied hands which were both larger and smaller than their own, and indeed judged their own hands to have changed size following the illusion. Children and adolescents embodied the fake hands more than adults, with a greater tendency to feel their own hand had changed size. Adolescents were particularly sensitive to multisensory information. In sum, we found substantial plasticity in the representation of own-body size, with partial support for the hypothesis that children have looser representations than adults.
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影响因子：
3.7
作者：
Kilteni K;Normand JM;Sanchez-Vives MV;Slater M
通讯作者：
Slater M
影响因子：
4.6
作者：
Giurgola, Serena;Bolognini, Nadia;Nava, Elena
通讯作者：
Nava, Elena
影响因子：
2.6
作者：
Cowie, Dorothy;Sterling, Samantha;Bremner, Andrew J.
通讯作者：
Bremner, Andrew J.
影响因子：
4.6
作者：
Gottwald, Janna M.;Bird, Laura-Ashleigh;Cowie, Dorothy
通讯作者：
Cowie, Dorothy
影响因子：
6.2
作者：
Greenfield K;Ropar D;Smith AD;Carey M;Newport R
通讯作者：
Newport R