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Related Experiment Videos

Zolpidem and memory: a study using the process-dissociation procedure.

S Pompéia1, L M Lucchesi, O F A Bueno

  • 1Departamento de Psicobiologia, UNIFESP, 925 R. Napoleão de Barros, CEP 04024-002 São Paulo, Brazil.

Psychopharmacology
|February 27, 2004
PubMed
Summary
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High doses of zolpidem impair cognitive control, similar to benzodiazepines. This study used the process-dissociation procedure (PDP) to assess memory effects of zolpidem.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Pharmacology

Background:

  • Limited research exists on zolpidem's memory effects using advanced methods.
  • Investigating zolpidem's impact on cognitive functions is crucial due to its widespread use.

Purpose of the Study:

  • To evaluate anterograde cognitive deficits from acute oral zolpidem doses.
  • To utilize the process-dissociation procedure (PDP) for memory assessment.

Main Methods:

  • A placebo-controlled, double-blind, parallel-group study.
  • Healthy young females received placebo, 5 mg, or 10 mg zolpidem.
  • Word-stem completion tasks (inclusion and exclusion) were used to measure explicit/controlled (C) and implicit/automatic (A) memory via PDP.

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Main Results:

  • Zolpidem 10 mg impaired exclusion task performance, akin to benzodiazepines.
  • Cognitive control (C) was impaired by zolpidem 10 mg, consistent with prior benzodiazepine research.
  • The PDP application yielded inconclusive results but supported the observed pattern of cognitive impairment.

Conclusions:

  • Zolpidem exhibits cognitive effects comparable to most benzodiazepines.
  • The process-dissociation procedure (PDP) shows potential for studying psychoactive drug effects on cognition, despite methodological challenges.
  • Findings highlight zolpidem's impact on cognitive control mechanisms.