Effect of electroconvulsive shock on an extinguished "fear" response.
To test Gellhorn's hypothesis that electroconvulsive shock reinstates extinguished responses, a conditioned "anxiety" response was established and then extinguished in rats. A series of treatments did not restore the extinguished "anxiety" response; in fact, control animals showed appreciable spontaneous recovery of the "anxiety" response while treated animals did not.
D000818:Animals; D001007:Anxiety; D001008:Anxiety Disorders; D003214:Conditioning, Classical; D004560:Electricity; D004597:Electroshock; D005108:Extinction, Psychological; D005239:Fear; D007858:Learning; D051381:Rats; D012640:Seizures
CONVULSIONS/experimental; ELECTRICITY; LEARNING