Back to Search
Start Over
Production of atypical category exemplars in patients with schizophrenia
- Source :
- Journal of the International Neuropsychological Society : JINS. 16(5)
- Publication Year :
- 2010
-
Abstract
- Previous studies have revealed semantic memory impairments in patients with schizophrenia, and suggested that certain of these impairments were related to thought disorganization. One explanation offered for this is a broadening of the boundaries of semantic categories in schizophrenia. We selected 16 semantic categories, and required a sample of 41 schizophrenia patients and 43 healthy control subjects to produce one exemplar from each category. The typicality of the subjects’ responses was rated. The exemplars produced by the patients were on average less typical than those produced by the healthy controls. No significant association between typicality of the response and thought disorganization was revealed in the patient sample. Affective flattening, alogia, and anhedonia were significantly and inversely associated with the typicality score, that is, higher ratings of these symptoms were associated with more typical responses. Our results suggest that a broadening of semantic category boundaries is observed in patients with schizophrenia, but is unrelated to thought disorganization. This semantic abnormality is not a feature of the patients with high ratings of certain negative symptoms. (JINS, 2010, 16, 822–828.)
- Subjects :
- Adult
Male
Alogia
Neuropsychological Tests
Developmental psychology
medicine
Aphasia
Semantic memory
Humans
In patient
Association (psychology)
Psychiatric Status Rating Scales
Mood Disorders
General Neuroscience
Anhedonia
medicine.disease
Semantics
Feature (linguistics)
Psychiatry and Mental health
Clinical Psychology
Schizophrenia
Regression Analysis
Female
Schizophrenic Psychology
Neurology (clinical)
medicine.symptom
Abnormality
Psychology
Cognition Disorders
Clinical psychology
Subjects
Details
- ISSN :
- 14697661
- Volume :
- 16
- Issue :
- 5
- Database :
- OpenAIRE
- Journal :
- Journal of the International Neuropsychological Society : JINS
- Accession number :
- edsair.doi.dedup.....6556212bb6a07add7e82760594cedcf2