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Photic‐Induced Epileptic Negative Myoclonus: A Case Report
Author(s) -
Gambardella Antonio,
Aguglia Umberto,
Oliveri Rosario Luciano,
Pucci Franco,
Zappia Mario,
Quattrone Aldo
Publication year - 1996
Publication title -
epilepsia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.687
H-Index - 191
eISSN - 1528-1167
pISSN - 0013-9580
DOI - 10.1111/j.1528-1157.1996.tb00596.x
Subject(s) - myoclonus , ictal , abnormality , psychology , epilepsy , medicine , audiology , photic stimulation , electroencephalography , anesthesia , neuroscience , psychiatry , visual perception , perception
Summary: We present the first documented case of photic‐induced epileptic negative myoclonus. A 17‐year‐old girl had experienced two generalized tonic‐clonic seizures (GTCS) while watching television. The only EEG abnormality was a photoparoxysmal response (PPR), which was sometimes accompanied by loss of postural tone in both arms. Valproate was effective in abolishing photosensitivity. Negative myoclonus should be included among the ictal phenomena accompanying PPR.