Genetic Epidemiology, Translational Neurogenomics, Psychiatric Genetics and Statistical Genetics Laboratories investigate the pattern of disease in families, particularly identical and non-identical twins, to assess the relative importance of genes and environment in a variety of important health problems.
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PMID
17316957
TITLE
Common and specific genetic influences on EEG power bands delta, theta, alpha, and beta.
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.
DATE PUBLISHED
2007 May
HISTORY
PUBSTATUS PUBSTATUSDATE
received 2006/09/11
revised 2007/01/18
accepted 2007/01/18
aheadofprint 2007/01/25
pubmed 2007/02/24 09:00
medline 2007/08/19 09:00
entrez 2007/02/24 09:00
AUTHORS
NAME COLLECTIVENAME LASTNAME FORENAME INITIALS AFFILIATION AFFILIATIONINFO
Zietsch BP Zietsch Brendan P BP Queensland Institute of Medical Research, Brisbane 4029, Australia. Brendan.Zietsch@qimr.edu.au
Hansen JL Hansen Jonathan L JL
Hansell NK Hansell Narelle K NK
Geffen GM Geffen Gina M GM
Martin NG Martin Nicholas G NG
Wright MJ Wright Margaret J MJ
INVESTIGATORS
JOURNAL
VOLUME: 75
ISSUE: 2
TITLE: Biological psychology
ISOABBREVIATION: Biol Psychol
YEAR: 2007
MONTH: May
DAY:
MEDLINEDATE:
SEASON:
CITEDMEDIUM: Print
ISSN: 0301-0511
ISSNTYPE: Print
MEDLINE JOURNAL
MEDLINETA: Biol Psychol
COUNTRY: Netherlands
ISSNLINKING: 0301-0511
NLMUNIQUEID: 0375566
PUBLICATION TYPE
PUBLICATIONTYPE TEXT
Journal Article
Research Support, Non-U.S. Gov't
Twin Study
COMMENTS AND CORRECTIONS
GRANTS
GENERAL NOTE
KEYWORDS
MESH HEADINGS
DESCRIPTORNAME QUALIFIERNAME
Adolescent
Alpha Rhythm
Beta Rhythm
Brain Mapping
Delta Rhythm
Dominance, Cerebral physiology
Electroencephalography physiology
Female physiology
Frontal Lobe physiology
Genotype physiology
Humans physiology
Male physiology
Models, Statistical physiology
Occipital Lobe physiology
Signal Processing, Computer-Assisted physiology
Statistics as Topic physiology
Theta Rhythm physiology
Twins genetics
SUPPLEMENTARY MESH
GENE SYMBOLS
CHEMICALS
OTHER ID's