Forward modelling the rubber hand: illusion of ownership modifies motor-sensory predictions by the brain.
Forward modelling the rubber hand: illusion of ownership modifies motor-sensory predictions by the brain.
复制标题
向前建模橡胶手：所有权的幻觉会改变大脑的运动感官预测。
DOI：
10.1098/rsos.160407
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发表时间：
2016-08
影响因子：
3.5
通讯作者：
Ganesh G
中科院分区：
文献类型：
--
作者：
Aymerich-Franch L;Petit D;Kheddar A;Ganesh G
我们如何将观察到的身体部位归属于自己的问题，以及这种归属对我们的感觉运动过程的影响，是理解我们的大脑如何区分自我和他人的基础。先前的研究已经确定了所有权错觉与大脑的多感官整合和跨感官预测之间的相互作用。在这里，我们表明幻觉所有权还会改变大脑的运动感觉预测。在我们的初步实验中，我们观察到一个新的麻木错觉后，经典的橡胶手错觉（RHI），刷橡胶手后，诱导的RHI结果在一个人的真实的手的错觉麻木。先前的研究表明，自我产生的动作（如搔痒）会被所谓的前向模型的运动感觉预测所减弱。基于这一发现，我们研究了当橡胶手自己刷牙时，与由另一个人刷牙时相比，RHI后的麻木错觉是否不同。我们观察到，在所有其他条件保持不变的情况下，在自发刷牙过程中，真实的手的触觉感知较低（麻木感较高）。我们的研究结果表明，RHI重组的前向模型，使我们预测的触觉后果的自我产生的电机动作的橡胶手。
The question of how we attribute observed body parts as our own, and the consequences of this attribution on our sensory-motor processes, is fundamental to understand how our brain distinguishes between self and other. Previous studies have identified interactions between the illusion of ownership, and multi-sensory integration and cross-sensory predictions by the brain. Here we show that illusory ownership additionally modifies the motor-sensory predictions by the brain. In our preliminary experiments, we observed a new numbness illusion following the classical rubber-hand illusion (RHI); brushing only the rubber hand after induction of the RHI results in illusory numbness in one's real hand. Previous studies have shown that self-generated actions (like tickling) are attenuated by motor-sensory predictions by the so-called forward model. Motivated by this finding, here we examined whether the numbness illusion after the RHI is different when the rubber hand is brushed oneself, compared with when the brushing is performed by another. We observed that, all other conditions remaining the same, haptic perception in the real hand was lower (numbness higher) during self-generated brushing. Our result suggests that RHI reorganizes the forward model, such that we predict haptic consequences of self-generated motor actions on the rubber hand.
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影响因子：
4.6
作者：
Ikegami T;Ganesh G
通讯作者：
Ganesh G
DOI：
10.1098/rstb.2005.1622
发表时间：
2005-04-29
影响因子：
6.3
作者：
Friston, KJ
通讯作者：
Friston, KJ
影响因子：
3.2
作者：
Blakemore, SJ;Frith, CD;Wolpert, DM
通讯作者：
Wolpert, DM
影响因子：
2.5
作者：
Diedrichsen, Joern;Verstynen, Timothy;Ivry, Richard B.
通讯作者：
Ivry, Richard B.
影响因子：
1.7
作者：
Blakemore, SJ;Fonlupt, P;Decety, J
通讯作者：
Decety, J