Revisiting intersubjective action-effect binding: No evidence for social moderators.

Effect-based accounts of human action control have recently highlighted the possibility of representing one's own actions in terms of anticipated changes in the behavior of social interaction partners. In contrast to action effects that pertain to the agent's body or the agent's physical environment, social action effects have been proposed to come with peculiarities inherent to their social nature. Here, we revisit the currently most prominent demonstration of such a peculiarity: the role of eye contact for action-effect learning in social contexts (Sato & Itakura, 2013, Cognition, 127, 383-390). In contrast to the previous demonstration of action-effect learning, a conceptual and a direct replication both yielded evidence for the absence of action-effect learning in the proposed design, irrespective of eye contact. Bayesian statistics supported this claim by demonstrating evidence in favor of the null hypothesis of no effect. These results suggest a limited generalizability of the original findings-for example, due to limitations that are inherent in the proposed study design or due to cultural differences.