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Auditory information processing in sleep: late cortical potentials in an oddball paradigm.

Authors
Type
Published Article
Journal
Neuropsychobiology
Publication Date
Volume
29
Issue
3
Pages
152–156
Identifiers
PMID: 8022535
Source
Medline
License
Unknown

Abstract

Information processing of auditory stimuli in sleeping healthy volunteers is studied by means of an oddball paradigm. Latencies of the early (N1P2) complex are affected by NREM sleep depth and show a progressive slowing. The amplitude of the early N1 component depends on stimulus type and probability and is increased following deviant stimuli. In strict comparison with waking, late responses (N2-P3) complex only follows deviant stimuli. Both latencies and amplitude increase more in NREM than in REM sleep. Thus the early response is mainly affected by vigilance, the late response mainly depends on stimulus type. Results are discussed in terms of comparison processing, context updating and orienting response patterning hypotheses put forward in cognitive psychophysiology.

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