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Influence on Retrograde Amnesia

BORJE CRONHOLM, M.D.; JAN-OTTO OTTOSSON, M.D.

Arch Gen Psychiatry. 1961;4(3):254-258.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Alexander¹ (1953) maintained that a nonconvulsive electrostimulation, called by him a "countershock," applied immediately after an electroconvulsive shock (ECS) had the effect that "the rather pronounced memory defects cleared up promptly." Russell et al.¹² and Sweel¹⁴ reported similar findings, and Fabing⁷ has speculated about how the memory defect is allayed by nonconvulsive electrical stimulation. Medlicott,⁹ on the other hand, did not get the impression that nonconvulsive stimulation relieved postconvulsive amnesia or confusion. All statements concerning the problem are based on clinical observations only and psychometric methods have not been used.

The purpose of the present investigation was to study experimentally whether a nonconvulsive electrostimulation ("countershock") after an ECS has any influence on retention of memory material, learnt a short time before the ECS, i.e., whether it influences postshock retrograde amnesia.

Methods and Material

General Procedure.—We chose to . . . [Full Text PDF of this Article]

Author Affiliations
STOCKHOLM, SWEDEN

From the Department of Psychiatry, Karolinska Institutet (Professor Torsten Sjögren).

Footnotes
Submitted for publication Aug. 22, 1960.

Supported by the Swedish Medical Research Council.

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