Influence of ethnic and geographic factors on the classic photoparoxysmal response in the electroencephalogram of epilepsy patients

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dc.contributor.authorDe Graaf A.S.
dc.contributor.authorLombard C.J.
dc.contributor.authorClaassen D.A.
dc.date.accessioned2011-05-15T16:16:17Z
dc.date.available2011-05-15T16:16:17Z
dc.date.issued1995
dc.description.abstractThe classic photoparoxysmal response (CPPR) on photic stimulation in the electroencephalogram (EEG) of 128 patients with chronic epilepsy, constituting three different ethnic groups, was investigated. All patients were referred for routine clinical EEG investigation. There was a significantly higher occurrence in whites (2.7%, 72 of 2,657) as compared with blacks (0.1%, 1 of 848) and subjects of 'mixed race' (0.9%, 55 of 5,958). Interictal abnormalities and the range of responses were similar in the two main ethnic groups. There was no evidence of a seasonal association with CPPR. We conclude that genetic rather than environmental factors influence the CPPR.
dc.description.versionArticle
dc.identifier.citationEpilepsia
dc.identifier.citation36
dc.identifier.citation3
dc.identifier.issn00139580
dc.identifier.other10.1111/j.1528-1157.1995.tb00987.x
dc.identifier.urihttp://hdl.handle.net/10019.1/13717
dc.subjectadolescent
dc.subjectadult
dc.subjectarticle
dc.subjectchild
dc.subjectelectroencephalography
dc.subjectethnic group
dc.subjectfemale
dc.subjectgene mutation
dc.subjectgeography
dc.subjecthuman
dc.subjectmajor clinical study
dc.subjectmale
dc.subjectpatient referral
dc.subjectphotosensitive epilepsy
dc.subjectphotostimulation
dc.subjectpriority journal
dc.subjectseason
dc.subjectsouth africa
dc.subjectsunlight
dc.subjectAdolescent
dc.subjectAdult
dc.subjectAge Factors
dc.subjectChild
dc.subjectChild, Preschool
dc.subjectCircadian Rhythm
dc.subjectElectroencephalography
dc.subjectEpilepsy
dc.subjectFemale
dc.subjectHuman
dc.subjectMale
dc.subjectPhotic Stimulation
dc.subjectRacial Stocks
dc.subjectSeasons
dc.subjectSex Factors
dc.subjectSouth Africa
dc.subjectSunlight
dc.titleInfluence of ethnic and geographic factors on the classic photoparoxysmal response in the electroencephalogram of epilepsy patients
dc.typeArticle
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