ERIC Number: EJ1012917
Record Type: Journal
Publication Date: 2013-Jul
Pages: 10
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-1087-0547
EISSN: N/A
A Decade of EEG Theta/Beta Ratio Research in ADHD: A Meta-Analysis
Arns, Martijn; Conners, C. Keith; Kraemer, Helena C.
Journal of Attention Disorders, v17 n5 p374-383 Jul 2013
Objective: Many EEG studies have reported that ADHD is characterized by elevated Theta/Beta ratio (TBR). In this study we conducted a meta-analysis on the TBR in ADHD. Method: TBR data during Eyes Open from location Cz were analyzed from children/adolescents 6-18 years of age with and without ADHD. Results: Nine studies were identified with a total of 1253 children/adolescents with and 517 without ADHD. The grand-mean effect size (ES) for the 6-13 year-olds was 0.75 and for the 6-18 year-olds was 0.62. However the test for heterogeneity remained significant; therefore these ESs are misleading and considered an overestimation. Post-hoc analysis found a decreasing difference in TBR across years, explained by an increasing TBR for the non-ADHD groups. Conclusion: Excessive TBR cannot be considered a reliable diagnostic measure of ADHD, however a substantial sub-group of ADHD patients do deviate on this measure and TBR has prognostic value in this sub-group, warranting its use as a prognostic measure rather than a diagnostic measure. (Contains 3 figures, 1 table and 1 note.)
Descriptors: Attention Deficit Hyperactivity Disorder, Brain Hemisphere Functions, Diagnostic Tests, Meta Analysis, Children, Adolescents, Test Reliability, Prognostic Tests, Disability Identification, Comparative Analysis, Symptoms (Individual Disorders), Sleep
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
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Authoring Institution: N/A
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