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Electrophysiological correlates of psychopathology in individuals with mental retardation and epilepsy
Author(s) -
Deb S.
Publication year - 1995
Publication title -
journal of intellectual disability research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.941
H-Index - 104
eISSN - 1365-2788
pISSN - 0964-2633
DOI - 10.1111/j.1365-2788.1995.tb00480.x
Subject(s) - psychopathology , psychology , epilepsy , electroencephalography , abnormality , temporal lobe , audiology , ictal , electrophysiology , psychiatry , neuroscience , medicine
Abstract One hundred adults with mental retardation and epilepsy were randomly selected from hospital and community settings for a detailed study of psychopathology (maladaptive behaviour, psychiatric illness and personality disorder). All of them had a recording of interictal EEG within the 12‐month study period. Of all the EEG recordings, nine were completely normal, 48 showed excessive slow background wave, and a further 43 showed epileptiform discharges. Of the 43 with epileptiform discharges in the EEG, 12 showed bilateral, diffuse, generalized activities (including 3 Hz abnormality), 18 showed temporal lobe focus (five left‐sided, four right‐sided and nine bilateral), and the other 13 showed secondary generalization from a temporal lobe focus. A comparison of psychopathology between the groups with a generalized epileptiform activity in the EEG ( n = 12) and focal changes ( n = 18) did not reveal any significant difference.