Lomonosov Moscow State University, Neuro- and Pathopsychology Department, Moscow 125009, Russia; Neurodata Lab LLC, Research and Development Department, Miami 33137, FL, US.
Lomonosov Moscow State University, Neuro- and Pathopsychology Department, Moscow 125009, Russia.
Conscious Cogn. 2018 Oct;65:216-227. doi: 10.1016/j.concog.2018.09.005. Epub 2018 Sep 12.
The aim of this study was to investigate the temporal dynamics of two multisensory body illusions: a static rubber hand illusion (RHI) and a moving virtual hand illusion (VHI). We explored the onset and fading of these illusions. A sense of ownership questionnaire and proprioceptive drift were used for illusion estimation. Novel kinematic analysis was applied for the VHI. Positive dynamics of ownership were found in the RHI but not in the VHI. The general dynamics of proprioceptive drift were similar in both illusions: during the onset phase of artificial hand representation proprioceptive drift gradually increased, and during the fading phase - it gradually decreased. Kinematic analysis of the VHI revealed several motion features (such as jerk, smoothness, velocity), predicted illusion measures, and probably reflected that participants with higher motor abilities and better adaptation to new sensory conditions may have better multisensory integration mechanisms that are responsible for the ownership illusion.
静态橡胶手错觉（RHI）和动态虚拟手错觉（VHI）。我们探索了这些错觉的出现和消失。使用所有权问卷和本体感觉漂移来评估错觉。对 VHI 进行了新的运动学分析。在 RHI 中发现了所有权的积极动态，但在 VHI 中没有发现。在这两种错觉中，本体感觉漂移的一般动态相似：在人工手表示的出现阶段，本体感觉漂移逐渐增加，而在消失阶段，本体感觉漂移逐渐减少。VHI 的运动学分析揭示了一些运动特征（如急动度、平滑度、速度），预测了错觉指标，可能反映出运动能力较高、对新感觉条件适应能力较好的参与者可能具有更好的多感觉整合机制，负责所有权错觉。
