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Everyday memory and laboratory memory tests: general function predictors in schizophrenia and remitted depression.

Shumel Fennig1, Amos Mottes, Gal Ricter-Levin

  • 1Shalvata Mental Health Center, Sackler School of Medicine, Tel Aviv University Ramat Aviv, P. O. Box 94, Hod Hasharon, Israel, 45100.

The Journal of Nervous and Mental Disease
|November 1, 2002
PubMed
Summary

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Schizophrenia patients showed poorer everyday memory and general functioning compared to controls, with diagnosis, not symptoms, impacting performance. Everyday memory tests predict general function in schizophrenia and depression.

Area of Science:

  • Neuroscience
  • Psychiatry
  • Cognitive Psychology

Background:

  • Neuropsychological assessments are crucial for understanding cognitive deficits in psychiatric disorders.
  • Distinguishing between laboratory memory tests and everyday memory measures is important for ecological validity.

Purpose of the Study:

  • To compare laboratory memory tests and an everyday memory measure in patients with schizophrenia, major depression, and healthy controls.
  • To investigate the relationship between memory performance, clinical symptoms, diagnosis, and general functioning.

Main Methods:

  • Participants included 68 schizophrenia patients (typical/atypical neuroleptics), 30 major depression patients, and 36 controls.
  • Evaluations involved clinical scales (PANSS, HDRS), laboratory memory tests (Digit-Span, etc.), the Rivermead Behavioural Memory Test (RBMT), and Global Assessment of Functioning (GAF).

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Main Results:

  • Schizophrenia patients exhibited significantly lower everyday memory and general functioning but not laboratory memory performance.
  • Both verbal and everyday memory measures correlated with general functioning.
  • Diagnosis, rather than current symptom remission, predicted performance on everyday memory and general functioning tests.

Conclusions:

  • Everyday memory and verbal memory effectively predict general functioning in remitted schizophrenia and depressive patients.
  • Further research with larger samples is needed to confirm the advantages of everyday memory tests over laboratory-based assessments.