Effect of semantic coherence on episodic memory processes in schizophrenia
Lâle Battal Merlet1, Shasha Morel2, Alain Blanchet3
1Université Paris 8, Laboratoire de Psychopathologie et Neuropsychologie, EA 2027, 2 rue de la Liberté, 93526 Saint-Denis Cedex, France; University Malaya, Psychological Medicine Department, Kuala Lumpur, Malaysia.
Psychiatry Research
|September 22, 2014
Summary
Schizophrenia patients show improved memory through enhanced familiarity with semantically related words, suggesting a compensatory mechanism for episodic retrieval impairment.
Area of Science:
- Cognitive Neuroscience
- Psychiatry
Background:
- Schizophrenia is characterized by significant episodic retrieval deficits.
- Understanding memory processes in schizophrenia is crucial for developing interventions.
Purpose of the Study:
- To investigate if semantic coherence and deep encoding can enhance familiarity and recollection in schizophrenia patients.
- To compare memory processes between schizophrenia patients and healthy controls.
Main Methods:
- An associative recognition memory task was administered to 12 schizophrenia patients and 12 healthy controls.
- Stimuli included semantically related and unrelated word pairs.
- The process dissociation procedure quantified familiarity and recollection.
Main Results:
- Both groups performed better with semantically related words.
- Healthy controls showed increased recollection, while schizophrenia patients showed increased familiarity.
- Familiarity for related words was similar between groups, suggesting a compensatory role.
Conclusions:
- Semantic relatedness benefits memory in schizophrenia by enhancing familiarity.
- Familiarity may serve as a compensatory mechanism for episodic retrieval impairment in schizophrenia.
- These findings offer insights into memory modulation in schizophrenia.
Keywords:
Episodic memoryFamiliarityProcess dissociation procedureRecollectionSchizophreniaSemantic relatednessMore Related Videos
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