Retrograde amnesia from electroconvulsive therapy

Patterson, Karalyn; Lawler, Edward E.; Rochester, Sherry

doi:10.1016/0028-3932(78)90046-5

Neuropsychologia

1978

DOI: 10.1016/0028-3932(78)90046-5

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Retrograde amnesia from electroconvulsive therapy

Karalyn Patterson

Edward E. Lawler²,

Sherry Rochester³

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1987

2000

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Cited by 2 publications

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“…Variety of test material might be a disadvantage if shock had different effects on visual and verbal material. However, Patterson et al (1978) and Mortensen (1980) reported that bilateral ECT had the same effect on the recall of different types of test material (i.e. visual and verbal).…”

mentioning

confidence: 97%

A comparison of some retrograde and anterograde effects of electroconvulsive shock in patients with severe depression

Frith¹,

Stevens²,

Johnstone³

et al. 1987

British J of Psychology

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Seventy severely depressed patients were randomly assigned to receive either a standard course of bilateral electroconvulsive therapy (ECT) or a course of simulated ECT (muscle relaxant and anaesthesia) identical to the real course except that the shock was omitted. Anterograde amnesia due to the shock was demonstrated in recognition memory for word lists and in recall of labels for faces, but this was eliminated by priming. Retrograde amnesia was also present for labels for faces learned the day before a treatment, but this was not eliminated by priming. Recognition memory for material learned in the remote past was better in the patients who had received shock than in those who had received only anaesthetic.

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mentioning

confidence: 97%

A comparison of some retrograde and anterograde effects of electroconvulsive shock in patients with severe depression

Frith¹,

Stevens²,

Johnstone³

et al. 1987

British J of Psychology

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show abstract

Anomalous properties of hippocampal lesion-induced retrograde amnesia

2000

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Retrograde amnesia can result from transient or permanent insults to the central nervous system and is typically manifest as a temporally graded memory loss. This temporal gradient of retrograde amnesia has been considered evidence for memory consolidation, since newly acquired information is vulnerable to amnestic treatments, whereas older information is not. Although investigations of transient insult-induced retrograde amnesia have provided evidence against a consolidation interpretation, hippocampallesion-induced retrograde amnesia is still considered to represent a consolidation (or storage) failure. In order to investigate the consolidation interpretation of hippocampal lesion-induced retrograde amnesia, two experiments were undertaken. In the fIrSt, rats were reminded of "old" memories prior to hippocampal lesions, a procedure that produced retrograde amnesia This result is difficult to reconcile with current interpretations of retrograde amnesia, since consolidated memories are presumably not vulnerable to amnesia The second experiment explored the permanence of hippocampal lesioninduced retrograde amnesia by presenting amnestic rats with a portion of the training treatment (reactivation) prior to testing. The reactivation treatment successfully reversed retrograde amnesia Taken together, the results from these experiments indicate that hippocampal retrograde amnesia may not in all cases arise from storage failure and illuminate new circumstances under which damage to the hippocampus may affect memory.Insults to the central nervous system (CNS) can result in amnesia, or the inability to recall learned information. When the information was learned prior to the insult, the resulting deficit is referred to as retrograde amnesia. This manifestation of amnesia results from two broad classes of experimental treatments: transient disruptions ofCNS functioning or permanent damage to brain tissue. Transient insults include such treatments as electroconvulsive shock (ECS; Duncan, 1949), thermoregulatory disruption, concussive head injury, and electrical brain stimulation (see, e.g.,

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Retrograde amnesia from electroconvulsive therapy

Cited by 2 publications

References 24 publications

A comparison of some retrograde and anterograde effects of electroconvulsive shock in patients with severe depression

A comparison of some retrograde and anterograde effects of electroconvulsive shock in patients with severe depression

Anomalous properties of hippocampal lesion-induced retrograde amnesia

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