Can the neuropsychological case-study approach be applied to schizophrenia?
- 1 August 1991
- journal article
- case report
- Published by Cambridge University Press (CUP) in Psychological Medicine
- Vol. 21 (3) , 661-673
- https://doi.org/10.1017/s0033291700022303
Abstract
SYNOPSIS: Neuropsychological studies of schizophrenia typically apply a small number of tests to a large group of patients. This approach has at least two drawbacks. First, the heterogeneity of the condition will lead to group means which may not reflect the behaviour of any individual. Secondly, it is difficult to infer the nature of the underlying cognitive impairments from a small number of tests, since good performance on a particular test depends on many different cognitive processes. In these circumstances it is more appropriate to apply the methods of cognitive neuropsychology where a large number of tests are used on a single case. This approach has proved fruitful in the study of neurological patients. We have intensively studied 5 chronic schizophrenic patients. These patients varied greatly in terms of overall ability. However, all patients, whatever their overall ability, performed badly on tests sensitive to frontal lobe lesions. This result suggests impairment of the supervisory attentional system in these patients. In addition, one patient suffered from a visual agnosia.Keywords
This publication has 51 references indexed in Scilit:
- The Involvement of the Frontal Lobes in Cognitive EstimationPublished by Elsevier ,2013
- Dementia: The Estimation of Premorbid Intelligence Levels Using the New Adult Reading TestPublished by Elsevier ,2013
- Physiological Dysfunction of Dorsolateral Prefrontal Cortex in SchizophreniaArchives of General Psychiatry, 1988
- Arithmetic Skills in Patients with Unilateral Cerebral LesionsCortex, 1986
- Computed tomography (CT) findings in schizophrenia: Speculation on the meaning of it allJournal of Psychiatric Research, 1984
- Spontaneous Involuntary Disorders of MovementArchives of General Psychiatry, 1982
- WORD-COMPREHENSION AND WORD-RETRIEVAL IN PATIENTS WITH LOCALIZED CEREBRAL LESIONSBrain, 1978
- A Modified Card Sorting Test Sensitive to Frontal Lobe DefectsCortex, 1976
- THE TOKEN TEST: A SENSITIVE TEST TO DETECT RECEPTIVE DISTURBANCES IN APHASICSBrain, 1962
- On the psychology of so-called processes of abstraction.The Journal of Abnormal and Social Psychology, 1941