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Titolo:
Age-dependent changes in sleep EEG topography
Autore:
Landolt, HP; Borbely, AA;
Indirizzi:
Univ Zurich, Inst Pharmacol & Toxicol, Zurich, Switzerland Univ Zurich Zurich Switzerland Pharmacol & Toxicol, Zurich, Switzerland
Titolo Testata:
CLINICAL NEUROPHYSIOLOGY
fascicolo: 2, volume: 112, anno: 2001,
pagine: 369 - 377
SICI:
1388-2457(200102)112:2<369:ACISET>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPINDLE FREQUENCY ACTIVITY; SLOW-WAVE ACTIVITY; POSITRON EMISSION TOMOGRAPHY; CEREBRAL BLOOD-FLOW; POWER SPECTRA; FUNCTIONAL NEUROANATOMY; PREFRONTAL CORTEX; F-18 ALTANSERIN; METABOLIC-RATE; HUMAN-BRAIN;
Keywords:
aging; power spectral analysis; non-rapid-eye-movement sleep; rapid-eye-movement sleep; brain topography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
59
Recensione:
Indirizzi per estratti:
Indirizzo: Landolt, HP Univ Zurich, Inst Pharmacol & Toxicol, Zurich, Switzerland Univ Zurich Zurich Switzerland Toxicol, Zurich, Switzerland
Citazione:
H.P. Landolt e A.A. Borbely, "Age-dependent changes in sleep EEG topography", CLIN NEU, 112(2), 2001, pp. 369-377

Abstract

Objective: To assess age-related topographic changes in the sleep electroencephalogram (EEG). Methods: The sleep EEG records of young (mean age. 22.3 years) and middle-aged (mean age, 62.0 years) healthy men were compared. The EEG was obtainedfrom 3 bipolar derivations (frontal-central (FC), central-parietal (CP), and parietal-occipital (PO)) along the anteroposterior axis. Results: The total sleep time, sleep efficiency, stage 2 and slow wave sleep (SWS) were lower in the middle-aged group, while sleep latency, stage I acid wakefulness after sleep onset were higher. Spectral analysis documented the age-related reduction of EEG power in non-REM sleep (0.25-14 Hz), andREM sleep (0.75-10 Hz), However, the reduction was not uniform over the 3 derivations, but was most pronounced in the anterior derivation (FC) in thetheta (both sleep states) and high-alpha/low-sigma bands (non-REM sleep). Conclusions: These changes can be interpreted as age-related shifts of power from the anterior (FC) towards the middle derivation (CP). Aging not only reduces power in the sleep EEG. but causes frequency-specific changes in the brain topography. The results are consistent with the notion of sleep as a local process. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.

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Documento generato il 29/01/20 alle ore 19:08:24