EEG coherence in adults with Attention-Deficit/Hyperactivity Disorder

Attention-Deficit/Hyperactivity Disorder (AD/HD) is the most common psychiatric disorder of childhood, but it is becoming increasingly more apparent that more than half the childhood sufferers will continue to manifest symptoms of the disorder as adults. While EEG coherence in children with AD/HD ha...

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Bibliographic Details
Published in:International journal of psychophysiology 2008, Vol.67 (1), p.35-40
Main Authors: Clarke, Adam R., Barry, Robert J., Heaven, Patrick C.L., McCarthy, Rory, Selikowitz, Mark, Byrne, Mitchell K.
Format: Article
Language:English
Subjects:
AD/HD
Adolescent
Adult
Adults
Attention - physiology
Attention Deficit Disorder with Hyperactivity - physiopathology
Attention deficit disorders. Hyperactivity
Attention-Deficit/Hyperactivity Disorder
Behavioral psychophysiology
Biological and medical sciences
Case-Control Studies
Child clinical studies
Coherence
Cortical Synchronization
Delta Rhythm
EEG
Functional Laterality - physiology
Fundamental and applied biological sciences. Psychology
Humans
Male
Matched-Pair Analysis
Medical sciences
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Psychopathology. Psychiatry
Reference Values
Statistics, Nonparametric
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Summary:Attention-Deficit/Hyperactivity Disorder (AD/HD) is the most common psychiatric disorder of childhood, but it is becoming increasingly more apparent that more than half the childhood sufferers will continue to manifest symptoms of the disorder as adults. While EEG coherence in children with AD/HD has been examined extensively, no studies have investigated coherence in adults with the disorder. This study investigated EEG coherence in adults with AD/HD. EEG was recorded from 18 adult males with AD/HD, and an age- and gender-matched control group, during an eyes-closed resting condition. Waveshape coherence was calculated for 8 intrahemispheric electrode pairs (4 in each hemisphere), and 8 interhemispheric electrode pairs, within each of the delta, theta, alpha and beta bands. A laterality effect was found for intrahemispheric coherence at long inter-electrode distances, with the AD/HD group showing reduced hemispheric differences in the delta band compared to the control group. In the alpha band, at short-medium inter-electrode distances, the AD/HD group also had lower coherences than the control group. The results suggest that theta coherence differences reported in children with AD/HD may be associated with hyperactivity, which is reduced in adults with AD/HD, while reduced alpha coherence could be associated with inattention, which remains in adult with AD/HD. Reduced delta coherence also appears to be an aspect of the disorder which may develop from later childhood into adolescence and adulthood.
ISSN:0167-8760
1872-7697
DOI:10.1016/j.ijpsycho.2007.10.001