title: Transitory cognitive impairment in epileptic children during a CPT task.
abstract: EEGs and behavioral responses were studied in two sex matched groups of 58 epileptic and 20 healthy children between 8 and 12 years of age, during the execution of a go-no go CPT (X; A-X) task to determine transitory cognitive impairment (TCI) incidence. Paroxysmal discharges were found on 87.9% and 5% of the EEGs in the epileptic and control groups respectively, with no differences related to sex. The predominant EEG findings with respect to paroxysmal discharges were the association of two or more types of paroxysms with frequency higher than 5/minute, an average duration less than 0.5 second and topographical distribution over temporal-parietal-occipital areas without significant interhemispheric differences. TCI was detected in 36.2% of epileptic children. The epileptic group showed significantly higher numbers of behavioral errors and longer reaction times (RTs) in relation to the control group. Analyzing RTs on the two blocks of the task, linear discriminant analysis showed an acceptable classification of TCI incidence between groups.
authors.affiliation: Unidad de Neurociencias, Hospital Civil de Guadalajara, Mexico.
authors.forename: A A
authors.initials: AA
authors.lastname: González-Garrido
authors.forename: J L
authors.initials: JL
authors.lastname: Oropeza de Alba
authors.forename: F R
authors.initials: FR
authors.lastname: Gómez-Velázquez
authors.forename: T
authors.initials: T
authors.lastname: Fernández Harmony
authors.forename: J L
authors.initials: JL
authors.lastname: Soto Mancilla
authors.forename: H
authors.initials: H
authors.lastname: Ceja Moreno
authors.forename: D
authors.initials: D
authors.lastname: Pérez Rulfo
authors.forename: S
authors.initials: S
authors.lastname: González Cornejo
authors.forename: R
authors.initials: R
authors.lastname: Riestra Castñeda
authors.forename: L E
authors.initials: LE
authors.lastname: Aguirre Portillo
authors.forename: E
authors.initials: E
authors.lastname: Gómez Limón
authors.forename: J L
authors.initials: JL
authors.lastname: Ruiz Sandoval
mesh_terms: D016022:Case-Control Studies; D002648:Child; D003072:Cognition Disorders / Q000175:diagnosis* / Q000503:physiopathology; D004569:Electroencephalography; D004827:Epilepsy / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D011930:Reaction Time; D013647:Task Performance and Analysis