The role of action selection in implict and explicit sense of agency
题目：The role of action selection in implict and explicit sense of agency
The sense of agency refers to feelings of causing one’s own action and resulting effect. It is a central aspect of human self-consciousness and recent research found that action selection processes play an important role in shaping sense of agency. In several studies we investigated how the controlled processes in action selection modulate the sense of agency. Based on the multifactorial model, the sense of agency consists of different components and correspondingly it can be measured explicitly by asking participants to report their feeling of control or by using the implicit measure - the contraction of perceived time between action and outcome. First, three studies tested the effects of two modes of action selection - automatic versus controlled action selection - on the implicit sense of agency by integrating the Simon task and intentional binding paradigm. Then, two experiments investigated the action conflict effect and sequential congruency effect over the explicit sense of agency. The results demonstrated that fluent action selection boosted the sense of agency while action conflict decreased the agency, but this effect was only present for the explicit sense of agency. Furthermore, a sequential trial effect on the explicit sense of agency was also found with a decreased action congruency effect preceded by incongruent trials compared to congruent trials. Finally, three experiments examined how the temporal preparation influence the action interference and the experience of agency. It was shown that temporal preparation facilitated the response and conflict resolution. Moreover, the experience of agency was also modulated by the response preparation processes and this effect was highly dependent on the context. In sum this research sheds more light on the mechanisms underlie the sense of agency and the nature of human voluntary behavior.