Electroconvulsive shock, stress, and avoidance conditioning
نویسندگان
چکیده
منابع مشابه
Anterograde effects of a single electroconvulsive shock on inhibitory avoidance and on cued fear conditioning.
A single electroconvulsive shock (ECS) or a sham ECS was administered to male 3-4-month-old Wistar rats 1, 2, and 4 h before training in an inhibitory avoidance test and in cued classical fear conditioning (measured by means of freezing time in a new environment). ECS impaired inhibitory avoidance at all times and, at 1 or 2 h before training, reduced freezing time before and after re-presentat...
متن کاملElectroconvulsive shock- or puromycin-induced retention deficits in goldfish given two active-avoidance sessions.
In a factorial design, goldfish received 15 active-avoidance training trials on Days 1, 7, and 13 followed by electroconvulsive shock (ECS) or n o treatment after the training session on Days 1 and 7. The final retention deficits observed when ECS was given after the f'trst session only or after the second session only were similar. Fish given ECS after both sessions showed a cumulative deficit...
متن کاملSingle Electroconvulsive Shock and Dopamine Autoreceptors
Dopamine (DA) auto receptor down regulation has been suggested to mediate the therapeutic effect of antidepressant treatments including electroconvulsive therapy (ECT). Suggestion has also been made that a single ECT may have antidepressant potential via such a mechanism. The present study was therefore conducted to assess the effects ill a single electroconvulsive shock (ECS) on dopamine auto ...
متن کاملRepeated Electroconvulsive Shock Produces Long-lasting Increases
Electroconvulsive shock (ECS) is a highly effective therapy for the treatment of major depression, but its mechanisms of action are not known. We report that repeated ECS in rats produces enduring changes in two clinically relevant stress-responsive brain systems: (a) the hypothalamic-pituitary-adrenal axis regulated by corticotropin-releasing hormone (CRH) in the paraventricular nucleus; and (...
متن کاملEffects of stress and of amphetamine on passive avoidance conditioning in rats.
This study examined the effects of immobilization stress combined with water immersion (ICS) and/or amphetamine (AM) on different memory phases in the passive avoidance task in rats. The performance of rats was evaluated in the retention tests 24 and 48 h after a single acquisition trial. ICS exposure lasting 1 h impaired retention of the learned avoidance response if applied 2 to 4 h before or...
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ژورنال
عنوان ژورنال: Psychonomic Science
سال: 1971
ISSN: 0033-3131
DOI: 10.3758/bf03335997