Temporal interplay between cognitive conflict and attentional markers in social collaboration

Cognitive processes deal with contradictory demands in social contexts. On the one hand, social interactions imply a demand for cooperation, which requires processing social signals, and on the other, demands for selective attention require ignoring irrelevant signals, to avoid overload. We created a task with a humanoid robot displaying irrelevant social signals, imposing conflicting demands on selective attention. Participants interacted with the robot as a team (high social demand; n = 23) or a passive co‐actor (low social demand; n = 19). We observed that theta oscillations indexed conflict processing of social signals. Subsequently, alpha oscillations were sensitive to the conflicting social signals and the mode of interaction. These findings suggest that brains have distinct mechanisms for dealing with the complexity of social interaction and that these mechanisms are activated differently depending on the mode of the interaction. Thus, how we process environmental stimuli depends on the beliefs held regarding our social context. We investigated the impact of social interaction on cognition, specifically the conflicting demands of social signals while suppressing irrelevant information using a human–robot handover task. Our results revealed that these demands interactively influence neural processes, and we identified the timing of this interaction. These findings have implications for sociocognitive neuroscience, illustrating how the brain handles complex social interactions. They also have relevance for robotics, emphasizing the negative impact of irrelevant robot behaviors on human cognitive processes.