PMID: 2507308Sep 1, 1989Paper

Effect of macular and peripheral retina coagulation on photosensitive epilepsy in the forebrain bisected baboon, Papio papio

Epilepsia
H FukudaR Naquet

Abstract

The effects of macular and peripheral retina coagulation were examined in photosensitive baboons, Papio papio (PP), with or without forebrain bisection. The temporal part of the macula and surrounding retina of the left eye were coagulated with an Argon laser and later confirmed histologically. In forebrain nonbisected baboons, intermittent light stimulation of the operated eye produced bisymmetrical and bisynchronous spikes and waves and self-sustained seizures. In forebrain-bisected baboons intermittent light stimulation of the operated eye produced spikes and waves and self-sustained seizures localized to the contralateral hemisphere. Subsequent stimulation of the nonoperated eye in the same animal produced spikes and waves and seizures either bilaterally or only in the opposite hemisphere when stimulation took place during the postictal silent period in the first hemisphere. In both cases, the tonic phase of the seizure was always bilateral but asymmetrical as shown by electromyographic recordings. Based on these data, it has been hypothesized that the tonic phase is mediated, in part, through crossed interreticular pathways, by one or both cerebral hemispheres. However, data are also compatible with a possible origin of th...Continue Reading

References

Apr 1, 1988·Electroencephalography and Clinical Neurophysiology·H FukudaR Naquet
Jan 1, 1986·Epilepsia·R P LesserH H Morris
Sep 1, 1974·Electroencephalography and Clinical Neurophysiology·J BancaudP Buser
Jan 1, 1981·Electroencephalography and Clinical Neurophysiology·D AncriJ Y Basset
Nov 1, 1981·Electroencephalography and Clinical Neurophysiology·A J WilkinsC E Darby
Nov 1, 1981·Electroencephalography and Clinical Neurophysiology·C D BinnieR A De Korte
Aug 1, 1982·Electroencephalography and Clinical Neurophysiology·I C Haimovic, T A Pedley
Apr 1, 1984·Electroencephalography and Clinical Neurophysiology·M VelascoF Estrada-Villaneuva
May 1, 1960·Electroencephalography and Clinical Neurophysiology·F MAGNIC J SMITH
May 1, 1960·Electroencephalography and Clinical Neurophysiology·R NAQUETJ BERT

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