Human brain alpha rhythm: nonlinear oscillation or filtered noise?

Authors
Gebber, GL Zhong, S Lewis, C Barman, SM
Citation
Gl. Gebber et al., Human brain alpha rhythm: nonlinear oscillation or filtered noise?, BRAIN RES, 818(2), 1999, pp. 556-560
Citations number
22
Categorie Soggetti
Neurosciences & Behavoir
Journal title
BRAIN RESEARCH
ISSN journal
00068993 → ACNP
Volume
818
Issue
2
Year of publication
1999
Pages
556 - 560
Database
ISI
SICI code
0006-8993(19990213)818:2<556:HBARNO>2.0.ZU;2-2
Abstract
The mechanism for generation of the alpha rhythm is controversial. In the c urrent study, analysis in the time and frequency domains revealed that the alpha rhythm recorded from the scalp overlying the human occipital cortex c an be entrained to the second or third harmonic of low frequency light flas hes. These results support the view that the alpha rhythm is generated by a nonlinear oscillator rather than a narrow-band transmission system acting as a filter. (C) 1999 Elsevier Science B.V. All rights reserved.