Oct 12, 2013

A model of memory impairment in schizophrenia: cognitive and clinical factors associated with memory efficiency and memory errors

Schizophrenia Research
Gildas BrébionAnthony S David

Abstract

Memory impairments in patients with schizophrenia have been associated with various cognitive and clinical factors. Hallucinations have been more specifically associated with errors stemming from source monitoring failure. We conducted a broad investigation of verbal memory and visual memory as well as source memory functioning in a sample of patients with schizophrenia. Various memory measures were tallied, and we studied their associations with processing speed, working memory span, and positive, negative, and depressive symptoms. Superficial and deep memory processes were differentially associated with processing speed, working memory span, avolition, depression, and attention disorders. Auditory/verbal and visual hallucinations were differentially associated with specific types of source memory error. We integrated all the results into a revised version of a previously published model of memory functioning in schizophrenia. The model describes the factors that affect memory efficiency, as well as the cognitive underpinnings of hallucinations within the source monitoring framework.

  • References36
  • Citations6

References

Mentioned in this Paper

Hallucinations, Visual
Memory Loss
Syllable
Schizophrenia
Discrimination (Process of Differentiation)
Memory for Designs Test
Antipsychotic Agents
Memory Disorders
Anticholinergic [EPC]
Malnutrition

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