Journal
JOURNAL OF CLINICAL MEDICINE
Volume 11, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/jcm11123307
Keywords
sense of agency; prediction error; stroke; motor deficit; self-other attribution; motor control; sensorimotor system
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Funding
- Japan Society for the Promotion of Science (JSPS) KAKENHI [JP20J15264, JP20H04057]
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Sense of agency refers to the experience of controlling one's actions. This preliminary study suggests that post-stroke sensorimotor deficits can impair the relationship between prediction error and self-other attribution, supporting the hypothesis that patients with such deficits can have altered strategies for the registration of agency.
Sense of agency refers to the experience of controlling one's actions. Studies on healthy people indicated that their self-other attribution can be realized based on prediction error which is an inconsistency between the internal prediction and sensory feedback of the movements. However, studies on patients with post-stroke sensorimotor deficits hypothesized that their self-other attribution can be based on different attribution strategies. This preliminary study examined this hypothesis by investigating whether post-stroke sensorimotor deficits can diminish the correlation between prediction errors and self-other judgments. Participants performed sinusoidal movements with visual feedback and judged if it represented their or another's movements (i.e., self-other judgment). The results indicated that the patient who had worse upper limb sensorimotor deficits and lesser paretic upper limb activity compared with the other patient made more misattributions and showed a lower correlation between prediction errors and self-other judgments. This finding suggests that post-stroke sensorimotor deficits can impair the relationship between prediction error and self-other attribution, supporting the hypothesis that patients with such deficits can have altered strategies for the registration of agency.
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