Auditory event-related potentials during stage 2 NREM sleep in humans |
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Authors: | Salisbury Squires Ibel Maloney |
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Affiliation: | Department of Psychology, State University of New York at Stony Brook, USA |
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Abstract: | SUMMARY Event-related potential (ERP) recordings were used to investigate the nature of auditory stimulus evaluation during stage 2 sleep. Frequent and rare stimuli, differing in intensity and frequency, were presented to six adult subjects while awake and asleep. The latency and voltage distribution of one of the long-latency components evoked during sleep resembled the P3 component evoked while awake. However, it was attenuated in voltage and superimposed on N3, a large late negative component, most probably the slow potential of the K complex. The identification of a P3-like potential during sleep suggests that the P3 potential is not solely a marker of active cognitive processes, but contains a small component which reflects automatic, pre-attentive evaluation of deviant stimuli. |
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Keywords: | keywords endogenous components event-related potentials K complex P3 sleep |
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