EEG anomalies in adult ADHD subjects performing a working memory task

Highlights • We investigated brain oscillation responses to WM activation in ADHD patients and controls. • Subjects performed two visual N -back working memory tasks as well as oddball detection and passive fixation tasks. • ADHD patients have lower frontal theta ERS between 0 and 500 msec after sti...

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Veröffentlicht in:	Neuroscience 2013-06, Vol.241, p.135-146
Hauptverfasser:	Missonnier, P, Hasler, R, Perroud, N, Herrmann, F.R, Millet, P, Richiardi, J, Malafosse, A, Giannakopoulos, P, Baud, P
Format:	Artikel
Sprache:	eng
Schlagworte:	Adult Attention Deficit Disorder with Hyperactivity - physiopathology Attention deficit disorders. Hyperactivity attention deficit hyperactivity disorder Biological and medical sciences Brain - physiopathology Child clinical studies Electroencephalography event-related potential event-related spectral changes or perturbations Female Fundamental and applied biological sciences. Psychology Humans Male Medical sciences Memory, Short-Term - physiology Neurology Psychology. Psychoanalysis. Psychiatry Psychopathology. Psychiatry Vertebrates: nervous system and sense organs
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Zusammenfassung:	Highlights • We investigated brain oscillation responses to WM activation in ADHD patients and controls. • Subjects performed two visual N -back working memory tasks as well as oddball detection and passive fixation tasks. • ADHD patients have lower frontal theta ERS between 0 and 500 msec after stimulus onset. • Patients displayed lower alpha ERD and higher activation on the subsequent alpha ERS (∼900–2400 msec). • We suggest the recruitment of neural compensatory mechanisms to perform the task in ADHD patients.
ISSN:	0306-4522 1873-7544
DOI:	10.1016/j.neuroscience.2013.03.011