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- W2012206899 abstract "1. The clinical photomyoclonic response (PMR) of eleven photosensitive epileptic patients and two non-epileptic subjects was studied by polygraphic EEG and ultraviolet apparatus recording of single responses and by computer summation. The responses spread after single light flashes over the deltoid, biceps, forearm flexors, quadriceps and gastrocnemius muscles with latencies of about: 61, 64, 65, 83 and 95 msec respectively. Agonists and antagonists contracted almost simultaneously. 2. These latencies are virtually identical to those of the sub-clinical physiological reflex described by Bickford as the “photo-motor response”. The PMR is considered as an enhancement of it. 3. In NREM sleep, following arousal from NREM sleep and during REM sleep, the PMR and the photoconvulsive response were diminished. Following arousal from REM sleep they were less diminished and quickly became those of wakefulness. 4. In patients with petit mal absences and petit mal myoclonus, arousal from NREM sleep, unlike that from REM sleep, provoked prolonged myoclonus associated with EEG poly-spike and wave discharges while the PMR and PCR remained suppressed. 1. La réponse photomyoclonique clinique (RPMP) a été étudiée chez onze épileptiques photosensibles et chez deux sujets non-épileptiques au moyen d'enregistrements polygraphiques, d'un appareil UV et par sommation algébrique grâce à un ordinateur. La réponse à des éclairs lumineux uniques s'étend progressivement aux muscles deltoides, biceps, fléchisseurs de l'avant-bras, quadriceps et gastrocnémius avec des latences approximatives de 61, 64, 65, 83 et 95 msec respectivements. Les groupes musculaires agonistes et antagonistes se contractent presque simultanément. 2. Ces latences correspondent à celles décrites par Bickford pour le réflexe physiologique sous-clinique nommé “réponse photomotrice”. La RPM peut être considérée comme un renforcement de cette réponse physiologique. 3. La RPM et la réponse photoconvulsive (RPC) ont été trouvées diminuées d'amplitude pendant le sommeil d'ondes lentes et après réveil de ce type de sommeil, aussi bien que pendant le sommeil avec mouvements oculaires rapides (PMO). Après réveil de la PMO ces réponses sont soit diminuées soit égales à celles observées pendant l'état de veille. 4. Chez des malades souffrant d'absences petit mal et des myoclonies dites petit mal, le réveil de la phase de sommeil lent (mais non de la PMO) a provoqué des accès prolongés associés à des décharges EEG de type poly-pointes-ondes, tandis que la RPM et la RPC restaient supprimés." @default.
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- W2012206899 date "1967-08-01" @default.
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- W2012206899 title "Photomyoclonic response of epileltic and non-epileptic subjects during wakefulness, sleep and arousal" @default.
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- W2012206899 doi "https://doi.org/10.1016/0013-4694(67)90104-6" @default.
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