Brain oscillatory responses during an auditory–verbal working memory task in Asperger syndrome
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1
Department of Psychology Cognitive Science Unit, University of Helsinki, Finland
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2
Department of Psychology Cognitive Brain Research Unit, University of Helsinki, Finland
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3
Department Clinical Neurophysiology, Oulu University Hospital, Finland
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4
Department of Child Psychiatry, Oulu University Hospital, Finland
Asperger syndrome (AS) is a developmental disorder characterised by deficits in social interaction including difficulties in understanding emotional expressions and problems in executive processes (e.g., memory functions). Brain oscillatory responses were assessed in nine (mean age 15.0 years) adolescents with AS and in thirteen (mean age 14.4 years) healthy control subjects. Event-related desynchronization (ERD) and synchronization (ERS) of the 1–30 Hz EEG frequencies were studied while the subjects performed an auditory-verbal Sternberg memory task. On the behavioral level, the adolescents with AS and their healthy control subjects performed equally well on the memory task. However; statistically significant differences emerged between the groups in the brain oscillations especially in the alpha frequency band (~8-12Hz), during both encoding and recognition. The results indicate that brain oscillatory responses in the alpha frequency range in the encoding and in the recognition phase of auditory–verbal working memory may be affected in adolescents with AS
Conference:
10th International Conference on Cognitive Neuroscience, Bodrum, Türkiye, 1 Sep - 5 Sep, 2008.
Presentation Type:
Poster Presentation
Topic:
Brain Electrical Oscillations in Cognition
Citation:
Andersson
A,
Pehunen
V,
Hakala
T,
Kujala
T,
Jansson-Verkasa
E,
Suominen
K,
Kuusikko
S and
Krause
CM
(2008). Brain oscillatory responses during an auditory–verbal working memory task in Asperger syndrome.
Conference Abstract:
10th International Conference on Cognitive Neuroscience.
doi: 10.3389/conf.neuro.09.2009.01.116
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Received:
03 Dec 2008;
Published Online:
03 Dec 2008.
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Correspondence:
Anna-Mari Andersson, Department of Psychology Cognitive Science Unit, University of Helsinki, Helsinki, Finland, anna@superjaded.fi