Problems in the Interpretation of Cognitive Abnormalities in Schizophrenia

1976 ◽  
Vol 129 (1) ◽  
pp. 32-35 ◽  
Author(s):  
D. R. Hemsley
Keyword(s):  
Movement Time ◽  
Decision Time ◽  
Sorting Task ◽  
Card Sorting ◽  
Clinical Tests ◽  
Significant Relation ◽  
Card Sorting Task ◽  
Schizophrenic Group ◽  
Information Processing Deficits ◽  
Direct Measures

SummaryThis study compared matched groups of patients with acute schizophrenia and with depression on three tests used in the assessment of schizophrenic thinking disorder. Most measures derived from these tests significantly differentiated the groups; however, within the schizophrenic group there were no significant correlations between scores on the three tests. Further data were available from a choice reaction-time card-sorting task, from which estimates of distractability, stimulus decision time, response decision time, and movement time, were obtained. Only one significant relation was found between these measures and scores on the clinical tests. The possible confounding effects of intelligence and responsiveness are discussed. It is argued that more direct measures of the latter are preferable to interpreting tests of thinking disorder in terms of information processing deficits.

scholarly journals Multidimensionality in Executive Function Profiles in Schizophrenia: A Computational Approach Using the Wisconsin Card Sorting Task

2020 ◽  
Author(s):  
Darren Haywood ◽  
Frank Baughman
Keyword(s):  
Computational Approach ◽  
Sorting Task ◽  
Primary Role ◽  
Card Sorting ◽  
Target Groups ◽  
Neuropsychological Disorders ◽  
Card Sorting Task ◽  
Ability Levels ◽  
Perseverative Errors ◽  
Schizophrenic Group

Deficits in executive functions (EF) are frequently implicated in the aetiology of schizophrenia. However, no consensus exists regarding the contribution of EF to the dysfunctions observed in these individuals, with competing accounts arguing a primary role for deficits in inhibition, shifting and updating. We examine an alternative proposal referred to as the multidimensional hypothesis – rather than performance on cognitive tasks being primarily dependent on a single EF, the performance is multiply realised by a range of uneven EF profiles. We describe a computational approach, using the WCST, that allows manipulations to ability levels of processes relating to each EF component to be explicitly assessed. Our central objective is to determine whether models exhibiting unique profiles of EF abilities may simulate the performance of three target groups: individuals with schizophrenia, healthy first–degree relatives, and controls. For each target group, we show that of the performance measures yielded by the WCST, perseverative errors (PE; commonly assumed to rely heavily on EF) are simulated by multiple models. For a range of secondary measures (cards sorted, categories completed and non-perseverative errors; assumed less specific to EF abilities) our manipulations show little resemblance to the target groups. We view these results to support the multidimensional hypothesis, in that (1) no single EF process accounts for the poorer performance of the schizophrenic group, and (2) performance of PE in the target groups is achieved in models of diverse EF profiles. The implications of these findings for the study of EF in neuropsychological disorders are discussed

Effects of Success and Failure with Institutionalized Mentally Retarded Adults

1966 ◽  
Vol 18 (3) ◽  
pp. 779-782 ◽  
Author(s):  
William I. Gardner
Keyword(s):  
Young Adults ◽  
Mentally Retarded ◽  
Adolescents And Young Adults ◽  
Sorting Task ◽  
Card Sorting ◽  
Partial Failure ◽  
Failure Group ◽  
Card Sorting Task ◽  
Total Failure ◽  
Success Group

Institutionalized mentally retarded adolescents and young adults ( N = 80) performed on a card-sorting task immediately preceding and following a series of neutral, success, total failure or partial failure experiences. As predicted, the success group demonstrated an increment in performance, the total failure group showed no change in performance, and the partial failure group showed a decrement in performance.

Spatiotemporal analysis of feedback processing during a card sorting task using spatially filtered MEG

2006 ◽  
Vol 410 (1) ◽  
pp. 31-36 ◽  
Author(s):  
Sarah J. Bayless ◽  
William C. Gaetz ◽  
Douglas O. Cheyne ◽  
Margot J. Taylor
Keyword(s):  
Spatiotemporal Analysis ◽  
Sorting Task ◽  
Card Sorting ◽  
Feedback Processing ◽  
Card Sorting Task

Chronic effects of social drinking in a card-sorting task: an event related potential study

2005 ◽  
Vol 116 (2) ◽  
pp. 376-385 ◽  
Author(s):  
Suzanne Bijl ◽  
Eveline A. de Bruin ◽  
Koen B.E. Böcker ◽  
J. Leon Kenemans ◽  
Marinus N. Verbaten
Keyword(s):  
Event Related Potential ◽  
Sorting Task ◽  
Card Sorting ◽  
Card Sorting Task ◽  
Chronic Effects ◽  
Potential Study ◽  
Social Drinking

Inhibiting Effects of Attempts to Verbalize on Attainment and Use of Complex Conjunctive Concepts

1968 ◽  
Vol 22 (3) ◽  
pp. 785-793 ◽  
Author(s):  
Joseph G. Phelan
Keyword(s):  
College Students ◽  
Sorting Task ◽  
Card Sorting ◽  
Errorless Trial ◽  
Sat Scores ◽  
Card Sorting Task ◽  
Conjunctive Concepts

For 90 college students, matched for SAT scores, there was differentiation of ability to identify correctly complex conjunctive concepts in a card-sorting task, as demonstrated by ability to learn the concepts to an errorless trial and to apply the newly formed concepts to other materials. Some Ss were able to learn the concepts to an errorless trial and to apply each concept to new sorts but were then unable to verbalize correctly those rules they had just employed. The same Ss who had previously learned an equivalent principle for sorting in one situation, then having tried unsuccessfully to verbalize the concept which they had just employed, were unable to apply the same principle in a new, equivalent situation.

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