eLife Assessment
This study developed a novel continuous dot-motion decision-making task, in which participants can see another player's responses as well as their own, to measure perceptual performance and confidence judgments in a social context. The study is a valuable contribution to social decision-making primarily by introducing a new task and offering convincing evidence on how participants are impacted by others' decisions during continuous perceptual choices. The manuscript delivers clear evidence that participants judgements are driven by metacognitive confidence over simpler primary uncertainty.