Common and specific genetic influences on EEG power bands delta, theta, alpha, and beta

Zietsch, Brendan P., Hansen, Jonathan L., Hansell, Narelle K, Geffen, Gina M., Martin, Nicholas G. and Wright, Margaret J. (2007) Common and specific genetic influences on EEG power bands delta, theta, alpha, and beta. Biological Psychology, 75 2: 154-164. doi:10.1016/j.biopsycho.2007.01.004

Author Zietsch, Brendan P.
Hansen, Jonathan L.
Hansell, Narelle K
Geffen, Gina M.
Martin, Nicholas G.
Wright, Margaret J.
Title Common and specific genetic influences on EEG power bands delta, theta, alpha, and beta
Journal name Biological Psychology   Check publisher's open access policy
ISSN 0301-0511
Publication date 2007-05
Sub-type Article (original research)
DOI 10.1016/j.biopsycho.2007.01.004
Volume 75
Issue 2
Start page 154
End page 164
Total pages 11
Editor R. F. Simons
Place of publication Amsterdam, The Netherlands
Publisher Elsevier
Collection year 2008
Language eng
Subject 730107 Inherited diseases (incl. gene therapy)
321011 Medical Genetics
1701 Psychology
1702 Cognitive Sciences
Formatted abstract
It is difficult to study the genetic basis of psychological function/dysfunction due to its etiological complexity. Instead, we studied a biological marker, EEG power, which is associated with various psychological phenotypes and is closer to gene function. Previous studies have consistently demonstrated high heritability of EEG band power, but less is known about how common or specific genes influence each power band. For 519 adolescent twin pairs, spectral powers were calculated for delta, theta, alpha, and beta bands at bilateral occipital and frontal sites. All four bands were entered into a multivariate genetic model, with occipital and frontal sites modelled separately. Variance was decomposed into additive (A) and dominant (D) genetic factors, and common (C) and unique (E) environmental factors. Band heritabilities were higher at occipital (0.75-0.86) than frontal sites (0.46-0.80). Both common and specific genetic factors influenced the bands, with common genetic and specific genetic factors having more influence in the occipital and frontal regions, respectively. Non-additive genetic effects on beta power and a common environment effect on delta, theta, and alpha powers were observed in the frontal region.
Keyword EEG power
Common factor
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

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Created: Mon, 03 Mar 2008, 11:32:18 EST