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ERIC Number: EJ1136431
Record Type: Journal
Publication Date: 2017-Apr
Pages: 16
Abstractor: As Provided
Reference Count: 20
ISBN: N/A
ISSN: EISSN-1696-2095
Bioelectrical Markers of ADHD: Enhancement of Direct EEG Analysis
Martín-Brufau, Ramón; Nombela Gómez, Manuel
Electronic Journal of Research in Educational Psychology, v15 n1 p185-200 Apr 2017
Introduction: So far some methods to help diagnosis of ADHD grounded in EEG decomposition by the FFT method and the discovery of the relationship between different frequency bands, the most clarifying the TBR rate in the prefrontal regions, have been proposed. This procedure requires a complex gadgetry so we evaluate the advantages of a simple model based on the visual inspection of the EEG tracing presented in an ad hoc method. Method: In order to compare the accuracy of three diagnostic methods of detection of ADHD against normal individuals based on EEG, the ROC curves were calculated. Three methods were compared: a) the Theta/Beta Ratio (TBR) method after decomposition with the Fast Fourier Transformation (FFT), b) the Delta + Theta/Alpha index obtained by visual position decomposition-Verley method and c) the direct analysis of EEG specific montages performed by untrained individuals in EEG interpretation. Result: Individuals with ADHD were diagnosed correctly using automatic procedures studied (92.9% of discriminatory capacity by TBR method and 91.7% by the Verley visual method). In addition, 55.5% of not trained individuals were able to discriminate the ADHD from normal cases with a diagnostic accuracy similar to the automated methods (discrimination index 86.8%). Conclusion: ADHD has a specific EEG pattern that can be easily recognized by the proposed EEG montages. These preparations allow to highlight the richness of Theta and Beta frequencies in the selected regions with a low cost and an adequate diagnostic accuracy, even for subjects without prior training in interpreting the EEG tracing. This fact supports the use of the EEG as a complementary measure in the early diagnostic of ADHD.
University of Almeria, Education & Psychology I+D+i. Faculty of Psychology Department of Educational and Developmental Psychology, Carretera de Sacramento s/n, 04120 LaCanada de San Urbano, Almeria, Spain. Tel: +34-950-015354; Fax: +34-950-015083; Web site: http://www.investigacion-psicopedagogica.org/revista/new/english/presentacion.php
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Spain