C Silva-Comte

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In Papio papio baboons chronically prepared for cortical and deep electroencephalographic recording, injection of kainic acid into the amygdala (7 animals) or temporal pole (2 animals) gave rise to focal epileptic discharges lasting 15 to 150 hours. Electrographically, the seizure activity spread ipsilaterally and contralaterally within the limbic system(More)
In the Papio papio, curarized and rendered photosensitive by injection of a subconvulsant dose of DL-allylglycine, single flashes induce frontal paroxysmal evoked responses on condition that they be preceded by trains of intermittent light stimulation (ILS). The characteristics of these responses have been compared to those of non-paroxysmal responses(More)
Baboons (Papio papio) with photosensitive have been chronically prepared with guide cannulae and deep electrodes to study the effects of focal injections of opioids. In the hippocampus, amygdala and thalamus (centre median) 50--100 micrograms morphine, 20--100 micrograms Met-enkephalin or 2--10 micrograms FK 33,824 do not induce local or general(More)
Extracellular records have been made in the fronto-rolandic (FR), parietal and occipital cortical areas in Papio papio injected with allylglycine and paralysed with a synthetic curarizing agent. The organization of the unit discharges in the absence of intermittent light stimulation (ILS) is normal. During ILS, unit discharges in the FR cortex are organized(More)
The experimental conditions necessary for obtaining an evoked paroxysmal response from the frontal cortex were studied in the baboon Papio papio. The trigger stimulus was comprised of an isolated flash preceded by a train of intermittent light stimulation (SLI). Two conditions were necessary for the appearance of paroxysmal responses: a subconvulsant dose(More)
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