Effects of attention on the auditory evoked potentials recorded from the vertex (ABR) and the promontory (CAP) of human listeners.
Auditory brainstem response (ABR) and the compound whole nerve action potential (CAP) of four human listeners were recorded while they were performing either visual duration or auditory frequency discrimination tasks with both types of stimuli presented simultaneously. The evoking tone bursts had the same center frequency as the standard discrimination tones and were presented between the discrimination tones. Waveforms between the two discrimination tasks did not differ in shape or latency, suggesting that the attention demand of the present task is not a central factor in the control of the auditory efferents.
Kuk
F K
FK
Department of Otolaryngology--Head and Neck Surgery, University of Iowa Hospital and Clinic, Iowa City 52242.
Abbas
P J
PJ
D000328:Adult; D001143:Arousal / Q000502:physiology; D001288:Attention / Q000502:physiology*; D001933:Brain Stem / Q000502:physiology*; D004569:Electroencephalography; D005072:Evoked Potentials, Auditory; D006801:Humans; D010897:Pitch Discrimination / Q000502:physiology; D011930:Reaction Time / Q000502:physiology; D000159:Vestibulocochlear Nerve / Q000502:physiology*