Due to sensory and motor deficits that appear after brain injury, there are cases in which the predicted sensation does not match the actual sensation and the patient complains of discomfort during the act, but it was unclear whether this sensation would continue.Professor Shu Morioka of Kio University and Mizuho Mishima (4th year undergraduate student), in collaboration with the Graduate School of the University of Tokyo, have clarified that the sense of agency does not change in a short period of time.
``Action/sense of agency'' is the subjective sense and consciousness of control that ``causes or produces a certain movement or event.''A sense of agency arises when sensory predictions and actual sensory results match.Due to neurological diseases, schizophrenia, autism spectrum disorders, etc., if they do not match, they may be reduced or lost, leading to discomfort in one's actions.However, it was unclear whether this continued robustly (that is, "cannot adapt") due to the aftereffects.
The research group used an experimental task to detect changes in the sense of agency by experimentally manipulating the PC cursor's self-regulation ratio, and used an experimental task to detect agreement (consistency group) or disagreement between sensory predictions and actual sensory results for a certain period of time. We captured changes in the sense of agency caused by the exposure of (non-matching group).As a result, no significant difference was observed in changes in the sense of agency between the concordant group and the discordant group, indicating the possibility that the sense of agency is non-adaptive and robust (difficult to accept disagreement).Only in the congruent group, changes in the sense of agency before and after exposure were associated with depressive tendencies.
In the current study, the effects of long-term sensory prediction and outcome discrepancies of exposure are unknown.In the future, it is necessary to investigate how the cognitive level, such as changes in thinking due to long-term exposure, affects the sensorimotor level, such as discrepancies between sensory prediction and results.
Paper information:[Behavioral Sciences] Adaptability of the Sense of Agency in Healthy Young Adults in Sensorimotor Tasks for a Short Term
