EEG brain wave activity at rest and during evoked attention in children with attention-deficit/hyperactivity disorder and effects of methylphenidate

Show simple item record

dc.contributor.author Thomas, Bianca Lee
dc.contributor.author Viljoen, Margaretha
dc.date.accessioned 2016-04-25T10:50:55Z
dc.date.available 2016-04-25T10:50:55Z
dc.date.issued 2016
dc.description.abstract OBJECTIVE : The aim of this study was to assess baseline EEG brain wave activity in children with attention-deficit/hyperactivity disorder (ADHD) and to examine the effects of evoked attention and methylphenidate on this activity. METHOD : Children with ADHD (n = 19) were tested while they were stimulant free and during a period in which they were on stimulant (methylphenidate) medication. Control subjects (n = 18) were tested once. EEG brain wave activity was tested both at baseline and during focussed attention. Attention was evoked and EEG brain wave activity was determined by means of the BioGraph Infiniti biofeedback apparatus. RESULTS : The main finding of this study was that control subjects and stimulant-free children with ADHD exhibited the expected reactivity in high alpha-wave activity (11-12 Hz) from baseline to focussed attention; however, methylphenidate appeared to abolish this reactivity. CONCLUSION : Methylphenidate attenuates the normal cortical response to a cognitive challenge. en_ZA
dc.description.department Psychiatry en_ZA
dc.description.librarian hb2016 en_ZA
dc.description.uri http://www.karger.com/Journal/Home/224082 en_ZA
dc.identifier.citation Thomas, BL & Viljoen, M 2016, 'EEG brain wave activity at rest and during evoked attention in children with attention-deficit/hyperactivity disorder and effects of methylphenidate', Neuropsychobiology, vol. 73, no. 1, pp. 16-22. en_ZA
dc.identifier.issn 0302-282X (print)
dc.identifier.issn 1423-0224 (online)
dc.identifier.other 10.1159/000441523
dc.identifier.uri http://hdl.handle.net/2263/52149
dc.language.iso en en_ZA
dc.publisher Karger en_ZA
dc.rights © 2016 S. Karger AG, Basel en_ZA
dc.subject Methylphenidate en_ZA
dc.subject Ritalin en_ZA
dc.subject High alpha activity en_ZA
dc.subject Focussed attention en_ZA
dc.subject Cortical reactivity en_ZA
dc.subject Cognitive stressor en_ZA
dc.subject Attention-deficit/hyperactivity disorder (ADHD) en_ZA
dc.subject Electroencephalogram (EEG) en_ZA
dc.title EEG brain wave activity at rest and during evoked attention in children with attention-deficit/hyperactivity disorder and effects of methylphenidate en_ZA
dc.type Postprint Article en_ZA


Files in this item

This item appears in the following Collection(s)

Show simple item record