Journal
EPILEPSY & BEHAVIOR
Volume 11, Issue 3, Pages 460-465Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.yebeh.2007.06.001
Keywords
epilepsy; children; epileptic encephalopathy; cognition; behavior; electroencephalography-functional magnetic resonance imaging
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Funding
- MRC [G0300117] Funding Source: UKRI
- Medical Research Council [G0300117] Funding Source: Medline
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Using electroencephalography (EEG) in combination with functional magnetic resonance imaging (fMRI, we studied a 9.5-year-old girl who developed cognitive and behavioral regression in association with intense interictal bilaterally synchronous epileptic discharges (IBSEDs) both during the awake state and during sleep. During runs of IBSEDs, EEG-fMRI demonstrated deactivations in the lateral and medial frontoparietal cortices, posterior cingulate gyrus, and cerebellum together with focal relative activations in the right frontal, parietal, and temporal cortices. The deactivations probably reflect the repercussion of the interictal epileptic activity on normal brain function which might cause the neuropsychological regression by inducing repetitive interruptions of neurophysiological function resulting, in a chronic state of specific psychomotor impairment. The relative activations could possibly indicate the source of epileptic activity rapidly spreading to other brain regions. (C) 2007 Elsevier Inc. All rights reserved.
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