Action sounds update the mental representation of arm dimension: contributions of kinaesthesia and agency.
Action sounds update the mental representation of arm dimension: contributions of kinaesthesia and agency.
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DOI：
10.3389/fpsyg.2015.00689
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发表时间：
2015
影响因子：
3.8
通讯作者：
Bianchi-Berthouze N
中科院分区：
文献类型：
--
作者：
Tajadura-Jiménez A;Tsakiris M;Marquardt T;Bianchi-Berthouze N
听觉反馈几乎伴随着我们所有的行为，但它对身体表征的贡献却研究不足。最近的研究表明，动作声音的听觉距离会重新校准手臂上感知到的触觉距离，这表明动作声音可以改变手臂长度的心理表征。然而，什么因素在这种重新校准中起作用的问题仍然没有解决。在这项研究中，我们调查了其中的两个因素，动觉和代理感。在两个实验中，我们要求参与者在伸展手臂的同时用手臂敲击一个表面。我们操纵敲击声音，使其与敲击位置的距离增加一倍，以及他们与动作的同步性，这是众所周知的，会影响声音的代理感。动觉线索操纵有额外的条件，参与者没有取代他们的手臂，但不断轻拍无论是接近（实验1）或远离（实验2）从他们的身体躯干。结果表明，无论是在动作的声音和动觉线索信号手臂位移时的声源发生位移的感觉机构是必要的观察感知触觉距离的变化在arm.In特别是，这些线索导致在手臂上的感知触觉距离被认为是较小的，相比参考位置上的距离。此外，我们的研究结果提供了第一个证据，有意识地感知的变化，手臂代表性引起的动作声音，并表明，所观察到的变化，感知触觉距离与经验丰富的手臂伸长。我们讨论了所观察到的影响的背景下，向前内部模型的感觉运动整合。我们的研究结果表明，这些模型的预测相关的动作声音必须符合动觉线索，以听觉输入改变身体表征。
Auditory feedback accompanies almost all our actions, but its contribution to body-representation is understudied. Recently it has been shown that the auditory distance of action sounds recalibrates perceived tactile distances on one’s arm, suggesting that action sounds can change the mental representation of arm length. However, the question remains open of what factors play a role in this recalibration. In this study we investigate two of these factors, kinaesthesia, and sense of agency. Across two experiments, we asked participants to tap with their arm on a surface while extending their arm. We manipulated the tapping sounds to originate at double the distance to the tapping locations, as well as their synchrony to the action, which is known to affect feelings of agency over the sounds. Kinaesthetic cues were manipulated by having additional conditions in which participants did not displace their arm but kept tapping either close (Experiment 1) or far (Experiment 2) from their body torso. Results show that both the feelings of agency over the action sounds and kinaesthetic cues signaling arm displacement when displacement of the sound source occurs are necessary to observe changes in perceived tactile distance on the arm. In particular, these cues resulted in the perceived tactile distances on the arm being felt smaller, as compared to distances on a reference location. Moreover, our results provide the first evidence of consciously perceived changes in arm-representation evoked by action sounds and suggest that the observed changes in perceived tactile distance relate to experienced arm elongation. We discuss the observed effects in the context of forward internal models of sensorimotor integration. Our results add to these models by showing that predictions related to action sounds must fit with kinaesthetic cues in order for auditory inputs to change body-representation.
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影响因子：
4.6
作者：
Canzoneri, Elisa;Marzolla, Marilena;Amoresano, Amedeo;Verni, Gennaro;Serino, Andrea
通讯作者：
Serino, Andrea
影响因子：
2.4
作者：
LI, XF;LOGAN, RJ;PASTORE, RE
通讯作者：
PASTORE, RE
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：
2.6
作者：
de Vignemont, Frederique
通讯作者：
de Vignemont, Frederique
影响因子：
2
作者：
Canzoneri, Elisa;Ubaldi, Silvia;Serino, Andrea
通讯作者：
Serino, Andrea