文章基本信息

标题：The role of motor memory dynamics in structuring bodily self-consciousness
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作者：Ryota Ishikawa ; Saho Ayabe-Kanamura ; Jun Izawa 等
期刊名称：iScience
印刷版ISSN：2589-0042
出版年度：2021
卷号：24
期号：12
页码：1-21
DOI：10.1016/j.isci.2021.103511
语种：English
出版社：Elsevier
摘要：SummaryBodily self-consciousness has been considered a sensorimotor root of self-consciousness. If this is the case, how does sensorimotor memory, which is important for the prediction of sensory consequences of volitional actions, influence awareness of bodily self-consciousness? This question is essential for understanding the effective acquisition and recovery of self-consciousness following its impairment, but it has remained unexamined. Here, we investigated how body ownership and agency recovered following body schema distortion in a virtual reality environment along with two kinds of motor memories: memories that were rapidly updated and memories that were gradually updated. We found that, although agency and body ownership recovered in parallel, the recovery of body ownership was predicted by fast memories and that of agency was predicted by slow memories. Thus, the bodily self was represented in multiple motor memories with different dynamics. This finding demystifies the controversy about the causal relationship between body ownership and agency.Graphical abstractDisplay OmittedHighlights•Body ownership and agency recover from their loss over different time courses•The body consciousness recovery process involves motor memory formation•Fast memory drives body ownership recovery•Slow memory drives agency recovery, and fast memory accelerates this processBiological sciences; Neuroscience; Behavioral neuroscience; Sensory neuroscience