Time course of narrow frequency bands in the waking EEG during sleep deprivation
| Autor: | Marie Dumont, Marc Hébert, M Mila Macchi, Julie Carrier, Chantal Lafrance |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Adult
Male medicine.medical_specialty Time Factors media_common.quotation_subject Electroencephalography Audiology Radio spectrum Body Temperature medicine Humans Circadian rhythm Wakefulness media_common medicine.diagnostic_test General Neuroscience Similar time Circadian Rhythm Electrophysiology Sleep deprivation Anesthesia Time course Sleep Deprivation Female Sleep Stages medicine.symptom Psychology Vigilance (psychology) |
| Zdroj: | NeuroReport. 10:403-407 |
| ISSN: | 0959-4965 |
| DOI: | 10.1097/00001756-199902050-00035 |
| Popis: | Electroencephalograms (EEGs) of 14 normal subjects were recorded every 2 h during 38 h constant routines. Adjacent narrow frequency bands (NFB) with similar temporal trends were grouped into frequency clusters. Clusters I (2.00-7.75 Hz) and III (11.00-14.75 Hz) exhibited similar time courses which may reflect both the duration of time awake and a circadian modulation. Cluster II (8.00-10.75 Hz) was characterized by a time course similar to the circadian modulation of core body temperature. Cluster V (18.00-24.75 Hz) was correlated with subjective sleepiness and may reflect the increasing effort made by subjects to perform the task as sleep deprivation lengthened. Various NFB in the waking EEG may reflect different physiological mechanisms underlying variations in vigilance states. |
| Databáze: | OpenAIRE |
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