作者: Toni Cunillera , Lluís Fuentemilla , Jose Periañez , Josep Marco-Pallarès , Ulrike M. Krämer
DOI: 10.3758/S13415-011-0075-5
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摘要: In this study, we sought to dissociate event-related potentials (ERPs) and the oscillatory activity associated with signals indicating feedback about performance (outcome-based behavioral adjustment) need change or maintain a task set (rule-based adjustment). With purpose in mind, noninvasively recorded electroencephalographic signals, using modified version of Wisconsin card sorting task, which processing switching could be studied separately. A similar late positive component was observed for switch correct on first trials series, but feedback-related negativity only incorrect feedback. Moreover, whereas theta power showed significant increase after cue new selective frontal beta-gamma exclusively (i.e., selection rule). Importantly, cue, beta-alpha suppressed rather than increased. This clear dissociation between stimuli emphasizes accurately study brain disentangle role different cognitive control processes.