Photosensitive patients: symptoms and signs during intermittent photic stimulation and their relation to seizures in daily life.

Thirty six patients were studied with a classical photoparoxysmal EEG response to intermittent photic stimulation (IPS). Clinical observations and complaints reported by patients during standardised IPS were recorded and compared with historical data. Twenty seven patients experienced impaired consciousness or showed motor phenomena such as involuntary opening of the eyes or jerking on one or both sides of the body. Twenty five patients had sensations such as pain in the eyes, jerking etc. There existed no relation between the duration of the evoked discharges (0.5-3 seconds) and observed signs or complaints. In 11 instances the clinical features found during IPS were not reported in a history taken from the patient and relatives.

[1]  D. King,et al.  Misdiagnosis of complex absence seizures. , 1984, Archives of neurology.

[2]  C D Binnie,et al.  Selective cognitive impairment during focal and generalized epileptiform EEG activity. , 1984, Brain : a journal of neurology.

[3]  A. Wilkins,et al.  Interhemispheric differences in photosensitive epilepsy. II. Intermittent photic stimulation. , 1981, Electroencephalography and clinical neurophysiology.

[4]  P. Kellaway,et al.  Proposal for Revised Clinical and Electroencephalographic Classification of Epileptic Seizures , 1981, Epilepsia.

[5]  C. D. Binnie,et al.  Visually-induced seizures , 1980, Progress in Neurobiology.

[6]  A. Wilkins,et al.  Self-induction of epileptic seizures by eyeclosure: incidence and recognition. , 1980, Journal of neurology, neurosurgery, and psychiatry.

[7]  J. Kiffin Penry,et al.  Photosensitivity and epilepsy: A review , 1979 .

[8]  J. Engel.  Selective photoconvulsive responses to intermittent diffuse and patterned photic stimulation. , 1974, Electroencephalography and clinical neurophysiology.

[9]  J. F. Peters,et al.  Relationship of some varieties of electroencephalographic photosensitivity to clinical convulsive disorders , 1973, Neurology.

[10]  H. Doose,et al.  On the Genetics of EEG-Anomalies in Childhood(1) – IV. Photoconvulsive reaction , 1973, Neuropadiatrie.

[11]  F. Dreifuss,et al.  Effects of Paroxysmal Spike‐Wave on Continuous Visual‐Motor Performance , 1970, Epilepsia.

[12]  J. VanBuren,et al.  ON THE NATURE OF THE "ABSENCE" IN CENTRENCEPHALIC EPILEPSY: A STUDY OF SOME BEHAVIORAL, ELECTROENCEPHALOGRAPHIC AND AUTONOMIC FACTORS. , 1965, Electroencephalography and clinical neurophysiology.

[13]  J. Margerison,et al.  The relationship between generalized paroxysmal E.E.G. discharges and various test situations in two epileptic patients , 1963, Journal of neurology, neurosurgery, and psychiatry.

[14]  S. Brandt,et al.  EEG Response to Photic Stimulation in 120 Normal Children , 1961, Epilepsia.

[15]  R. Naquet,et al.  Seizure discharges localized to the posterior cerebral regions in man, provoked by intermittent photic stimulation. , 1960, Electroencephalography and clinical neurophysiology.

[16]  K. A. Kooi,et al.  Alterations in mental function and paroxysmal cerebral activity. , 1957, A.M.A. archives of neurology and psychiatry.

[17]  C. W. Watson,et al.  Hereditary Light Sensitive Epilepsy , 1956, Neurology.

[18]  K. Herrlin,et al.  EEG with photic stimulation: a study of children with manifest or suspected epilepsy. , 1954, Electroencephalography and clinical neurophysiology.

[19]  A. Mundy-castle.  The clinical significance of photic stimulation. , 1953, Electroencephalography and clinical neurophysiology.

[20]  R. Bickford,et al.  Some observations on the mechanism of photic and photometrazol activation. , 1952, Electroencephalography and clinical neurophysiology.

[21]  W. Walter,et al.  Analysis of the Electrical Response of the Human Cortex to Photic Stimulation , 1946, Nature.

[22]  F. Gibbs,et al.  THE ELECTRO-ENCEPHALOGRAM IN DIAGNOSIS AND IN LOCALIZATION OF EPILEPTIC SEIZURES , 1936 .