Time pressure affects the efficiency of perceptual processing in decisions under conflict

摘要: The negative correlation between speed and accuracy in perceptual decision making is often explained as a tradeoff, where lowered boundaries under time pressure result faster but more error-prone responses. Corresponding implementations sequential sampling models confirmed the success of this account, which has led to prevalent assumption that second component making, efficiency processing, largely independent from temporal demands. To test generality claim, we examined effects on decisions conflict. Data flanker task were fit with model incorporates two successive phases response selection, driven by output an early late stage stimulus respectively. fits revealed canonical decrease increasing pressure. In addition, reduced duration non-decisional processes impaired together subsequent first phase selection. results show relation not only relies strategic adjustment involves variations processing efficiency. findings support recent evidence drift rate modulations simple confirm their validity context complex tasks.