Voluntary action is important for human to adapt and change outside world. Voluntary action has an concomitant effect -- the temporal interval between an action and its outcome is subjectively compressed, known as intention binding. Most studies on intentional binding examined whether action is self-generated, but whether the outcome is self-related has not been paid much attention. At present, the main models or mechanisms of theoretical interpretation do not explicitly discuss the role of self-related information, and there is some confusion with anticipation, causality and
expectation.
Study 1 systematically examined the effect of self-related information on intentional-binding in the behavior experiment. Participants completed a time interval estimation task and a time point estimation task. Since the result type of action was unpredictable, there was no causal relationship with the action behavior. In study 2, the brain mechanism of time interval estimation task and time point estimation task was studied by EEG technology.
This study draws the following main results:
The study found different self-related information may affect time perception and sense of agency.It is not only the self-relevance voluntary actions affects intention binding, but also the self-relevance outcomes. These results suggest that postdictive explanatory mechanisms may play an important role in intentional binding, independent of causality and expectation.
Through Libet clock task, self-related information effects outcome binding morethan action binding. In the EEG, P2/P3 at least partially reflected the differencebetween self-related information and non-self-related information in the sense ofagency. The midline electrode of EEG may play an important role in cognitiveprocessing.
In this study, the influence and neural mechanism of self-related information insense of agency can be explored to enrich and improve the theoretical basis of sense of agency, which can help to further understand the internal mechanism of self-relatedinformation.
修改评论