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Title of article :
Interictal and postictal performances on dichotic listening test in children with focal epilepsy
Author/Authors :
Carlsson، نويسنده , , G. and Wiegand، نويسنده , , G. and Stephani، نويسنده , , U.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2011
Pages :
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Abstract :
Dichotic listening test (DL) is an important tool to disclose speech dominance in healthy subjects and in clinical cases. The aim of this study was to probe if focal epilepsy in children reveals a corresponding suppression of the ear reports contralateral to seizure onset site. Thus, 15 children and adolescents with clinically and electroencephalographically diagnosed focal epilepsy selected for left-hemisphere speech dominance without mental retardation were compared to matched controls according to age, gender, IQ and handedness. ildren were assessed with DL for three times: Interictally (t0), postictally 5’ (t1) and 1 h (t2). At t0, all groups revealed a right ear advantage (REA), indicating a left-hemisphere speech dominance. There was a continuous increase in right correct score (REC) over the trials for normal controls. Five minutes postictally, there was an abrupt decrease in REC with a sustained left ear correct score (LEC) for children with epilepsy, independent of which side suffered from seizures. This effect was maintained even after 1 h. in children with left-hemisphere speech dominance the epileptic discharges caused a suppression of REC regardless of origin. The seizures may have a prolonged impact on attention and auditory perception for a considerable time after consciousness has been regained.
Keywords :
dichotic listening , children , Drug resistant , Epilepsy , Focal seizures
Journal title :
Brain and Cognition
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Link To Document :