Abstract
Although cognitive efforts were reported to elicit global autonomic arousal, which cognitive processes associate with autonomic arousal has not been clear. We investigated autonomic arousal using event-related skin conductance responses (SCRs) during the Stroop color-word task. After baseline SCR deflections were determined in each trial block, SCRs were compared between cognitive conflict conditions (incongruent vs. congruent stimuli), between tasks assigned (word reading vs. color naming), and between erroneous and correct responses. Baseline SCRs were significantly greater at the beginning of each trial block. SCRs were significantly greater with incongruent than congruent stimuli while SCRs differed little between word reading and color naming. SCRs were greater when responses were incorrect. The results suggested that autonomic arousal occurs during cognitive conflict resolution in addition to mental set adoption for a task and in error awareness.
Published Version
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