Frequency and state specific hemispheric asymmetries in the human sleep EEG

被引：41

作者：

Roth, C ^{[1
]}

Achermann, P ^{[1
]}

Borbély, AA ^{[1
]}

机构：

[1] Univ Zurich, Inst Pharmacol, CH-8057 Zurich, Switzerland

来源：

NEUROSCIENCE LETTERS | 1999年 / 271卷 / 03期

关键词：

hemispheric dominance; non-REM sleep; REM sleep; power spectra; spindle frequency activity; brain asymmetry;

D O I：

10.1016/S0304-3940(99)00048-8

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Regional differences in the sleep EEG along the antero-posterior axis have been recently described. To test for state related, hemispheric differences, sleep records from homologous fronto-central, centro-parietal and parieto-occipital derivations were obtained from 14 young right-handed males. Within the frequency range of sleep spindles (11-15 Hz) power in non-REM sleep dominated in the left hemisphere in all derivations. In the centro-parietal 4-8 Hz band a right-hemispheric predominance prevailed in non-REM sleep and a left-hemispheric predominance in REM sleep. Since the frequency bands exhibiting hemispheric asymmetries are those in which targe antero-posterior power gradients had been observed, the left-rig ht differences may arise from structural a nd functional asymmetries of brain regions involved in the generation of the sleep EEG. (C) 1999 Elsevier Science Ireland Ltd. All rights reserved.

引用

页码：139 / 142

页数：4

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