Spontaneous Seizure Frequency and Avoidance Conditioning in Monkeys
- 1 July 1972
- Vol. 13 (3) , 437-444
- https://doi.org/10.1111/j.1528-1157.1972.tb04583.x
Abstract
SUMMARY: The spontaneous motor seizure‐frequency of aluminum‐hydroxide, cerebrally injected, rhesus monkeys was recorded automatically during weeks of short daily avoidance conditioning and during control weeks of no conditioning. The finding of increased seizure‐frequency during weeks of avoidance conditioning but at times other than the conditioning itself, supports an hypothesis of an emotional activation of seizures. Since the increased number of seizures of all subjects occurred mainly when the electric shocks of avoidance conditioning were absent, the problems of hyperventilation and direct afferent precipitation of seizures were by‐passed. The increase in seizures was temporary and the subjects tended to re‐establish their baseline frequencies during control weeks.RÉUMÉ: Chez le singe rhésus, on a enregistré avec des méthodes automatiques, les crises motrices spontanées‐consécutives à l'injection intracérébrale d'hydroxyde d'alumine, survenant pendant des semaines de bref conditionnement d'évitement quotidien et pendant des semaines de contrôle sans conditionnement. L'augmentation de la fréquence des crises pendant les semaines de conditionnement d'évitement, mais en dehors du conditionnement lui‐même, est en faveur de l'hypothèse d'une activation des crises par des facteurs émotifs. L'augmentation des crises survenant chez tous les sujets, essentiellement en dehors des chocs électriques du conditionnement d'évitement, éliminait la possibilité que les crises fussent facilitées par l'hyperpnée et par des stimulations afférentielles. L'augmentation des crises était transitoire et les crises revenaient à leur fréquence habituelle pendant les semaines de contrôle.Keywords
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