Neurological basis Eriksen flanker task

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the anterior cingulate cortex (acc) highlighted in yellow


when subjects participate in eriksen flanker task, anterior cingulate cortex, or acc, activated. acc frontal brain structure responsible wide variety of autonomic functions. observed more active in response processing incongruent stimuli congruent stimuli. believed acc may monitor amount of conflict in eriksen flanker trial. then, measured conflict used enhance amount of control participant has on next trial. indicating more conflict presented on trial n, more control expressed on trial n + 1. process leads interaction called gratton effect, finding of lower interference effect after incongruent trial compared effect after congruent trial. on first trial (trial n) incongruent stimulus presented lead increase in conflict detected acc. on trial n + 1, increased conflict lead more control, causing distracting, or flanker, stimuli more readily ignored.








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