Body ownership can be experimentally investigated with the rubber hand illusion (RHI), in which watching a rubber hand stroked synchronously with one's own hidden hand induces a feeling of ownership over the rubber hand. The aim of this study was to investigate response to the RHI in high (N = 21) and low (N = 19) hypnotizable individuals in normal waking state and in hypnosis. Response to the RHI was measured via a question on the illusory feeling of ownership and with proprioceptive drift. The Highs expressed an overall feeling of more ownership over the rubber hand in both the normal waking state and hypnosis, although both groups gave higher ownership scores after synchronous than after asynchronous stroking and the difference between conditions was similar across groups. Conversely, the proprioceptive drift appeared to be differentially modulated by hypnosis and hypnotic suggestibility: it was increased in the Highs and decreased in the Lows after hypnosis induction. These findings hint at an interplay between hypnotic suggestibility and hypnosis in modulating response to the RHI. The selective breakdown of proprioceptive drift among the Lows suggests resistance to recalibrate one's own limb in hypnosis.

译文

身体所有权可以通过橡胶手幻觉 (RHI) 进行实验研究,在这种幻觉中,看着橡胶手与自己的隐藏手同步抚摸会产生对橡胶手的所有权感。这项研究的目的是调查在正常清醒状态和催眠状态下,高 (n   =   21) 和低 (n   =   19) 可催眠个体对RHI的反应。对RHI的反应是通过一个关于虚幻的所有权感觉和本体感受漂移的问题来衡量的。在正常的清醒状态和催眠状态下,尽管两组在同步后的所有权得分均高于异步抚摸后的所有权得分,并且两组之间的条件差异相似,但高点总体上表示对橡胶手拥有更多所有权。相反,本体感受漂移似乎受到催眠和催眠暗示性的不同调节: 催眠诱导后,它在高点增加,在低点减少。这些发现暗示了催眠暗示和催眠在调节对RHI的反应中的相互作用。在低点之间本体感受漂移的选择性分解表明,在催眠过程中抵制重新校准自己的肢体。

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