Stability of evoked potentials during auditory attention

摘要: Click-evoked potentials were recorded from the round window (cochlear microphonic and auditory nerve), cochlear nucleus, cortex of unanesthetized cats during periods attention nonattention. The clicks (irrelevant stimuli) increasing intensity presented continuously as background before, during, after presentation a warning stimulus (SI) followed by an imperative (relevant) (S2) to which made behavioral response. At all electrode sites, when attentive S2, mean amplitudes irrelevant click-evoked within S1-S2 interval not significantly different those pretest posttest control sessions. During attention, no evidence was obtained for peripheral gating at nerve olivocochlear bundle. dissociation observed between performance may reflect overlearning response task.