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Impairment of constructive memory in schizophrenia.
Caroline Huron1, Jean-Marie Danion
1CNRS UMR 7593, Pavillon Clérambault, Hôpital de la Salpétrière, Paris, France.
International Clinical Psychopharmacology
|May 1, 2002
Summary
Patients with schizophrenia show impaired conscious recollection, affecting both true and false memories. This study reveals that schizophrenia disrupts the constructive processes essential for recalling past events.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Psychiatry
Background:
- Episodic memories involve conscious recollection and constructive processes.
- Patients with schizophrenia have known impairments in conscious recollection.
Purpose of the Study:
- Investigate the role of constructive processes in schizophrenia patients' defective conscious recollection.
- Examine false recognition and awareness states in schizophrenia.
Main Methods:
- Used an experiential approach with word lists and a recognition memory task.
- Compared 30 schizophrenia patients with 30 matched normal subjects.
- Assessed Remember, Know, and Guess responses to studied and non-presented words (critical lures).
Main Results:
- Schizophrenia patients recognized fewer studied words and critical lures than controls.
- The deficit was specific to conscious recollection (Remember responses), not familiarity (Know) or guessing (Guess).
- Impaired conscious recollection was observed for both true and false memories.
Conclusions:
- Schizophrenia patients exhibit impaired conscious recollection, impacting both accurate and false memories.
- Evidence suggests schizophrenia disrupts the constructive processes underlying conscious recollection.