Neuropsychological deficit in schizophrenic subtypes: Paranoid, nonparanoid, and schizoaffective subgroups

Bornstein, Robert A.; Nasrallah, Henry A.; Olson, Stephen C.; Coffman, Jeffrey A.; Torello, Michael W.; Schwarzkopf, Steven B.

doi:10.1016/0165-1781(90)90104-d

Cited by 87 publications

(48 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The findings of the present study are in agreement with the majority of the current lit erature reporting similar deviations of schizo phrenic probands as compared to the achieve ments of healthy controls on the WCST, TMT [31][32][33] and VFT [16. 30].…”

Section: Comparison Between Schizophrenics and Controlssupporting

confidence: 81%

Assessment of Frontal Lobe Functioning in Schizophrenia and Unipolar Major Depression

et al. 1993

View full text Add to dashboard Cite

This study has used neuropsychological tasks – Wisconsin Card Sort (WCST), Trail Making (TMT) A and B, Verbal Fluency, Digit Span – to compare acute and currently off-medication schizophrenics, patients with unipolar nonpsychotic major depression and healthy controls. Both patient groups differed significantly from healthy controls in their neuropsychological performance. Furthermore there was only little (quantitative) difference between schizophrenics and depressed patients in the frontal lobe associated tasks: WCST, TMT and Verbal Fluency. Depressed patients tended to perform worse than schizophrenics on Digit Span, a task hypothesized to involve other than frontal areas of the brain. Although the group of depressed patients was older than the schizophrenic sample, the effect of age may not totally explain the findings. The results indicate that there do exist disturbances in frontal lobe cognitive functioning in schizophrenia and depression. Symptomatology (SANS/SAPS) and cognitive functioning in the schizophrenic group revealed only a trend for negative symptoms to be associated with worse performance in the WCST, but were significantly correlated with negative as well as positive symptoms on the TMT.

show abstract

Section: Comparison Between Schizophrenics and Controlssupporting

confidence: 81%

Assessment of Frontal Lobe Functioning in Schizophrenia and Unipolar Major Depression

et al. 1993

View full text Add to dashboard Cite

show abstract

“…Likewise, Bornstein et al [57] found a higher fluidity of speech in paranoid than in non-paranoid and schizoaffective schizophrenics, but this difference also disappeared after controlling for group differences regarding education, medication and number of psychopathological symptoms. No group differences between paranoid and non-paranoid patients were found for expressive speech or language-related receptive abilities [58,59] .…”

Section: Neuropsychological Findingsmentioning

confidence: 99%

“…Regarding the problem of inclusion and exclusion criteria, Sorensen et al [65] pointed out that these factors may artificially increase or decrease the number of paranoid or non-paranoid test subjects, thereby also skewing the test data for group comparisons. Bornstein et al [57] also showed that between-group differences in cognitive performance could be due to confounding variables (see above). Finally, Kremen et al [56] emphasized the importance of qualitative and quantitative aspects of delusions, an approach which seems promising, given that considering disorder-related characteristics across the various classifications had already been proposed by Bilder et al [61] and Liddle et al [63] .…”

Section: Neuropsychological Findingsmentioning

confidence: 99%

Theories of Delusional Disorders

2007

View full text Add to dashboard Cite

Delusional syndromes can occur in a number of psychiatric, neurological or other disorders. They can also be caused by neurotoxic agents (e.g., heavy metals) as well as substance addiction. There are several hypotheses on the underlying cognitive or emotional processes associated with organic factors of delusional disorders, depending on the patient groups examined and the methods used. The aim of this paper is to provide a comprehensive review and critical assessment of the various, rather heterogeneous theories in this field.

show abstract

“…Inferences with regard to neuropsychological aspects of delusions have mostly been made from comparisons between patients with paranoid versus nonparanoid schizophrenia [[5,6,7,8,9], for a review, see [10]]. However, one must wonder to what extent these conclusions from studies in schizophrenia can be accepted for patients with DD given that, by definition, delusions are supposed to be different in DD and schizophrenia (i.e.…”

Section: Introductionmentioning

confidence: 99%

Neuropsychological Research in Delusional Disorder: A Comprehensive Review

Ibanez-Casas

Cervilla

2012

Psychopathology

View full text Add to dashboard Cite

In recent decades, there has been a growing interest in the field of delusions, and different aspects of delusional disorder (DD) have been investigated. However, DD is still one of the most underresearched psychiatric disorders. In this paper, we review the literature on DD and most of the theoretical approaches proposed to explain the development and maintenance of delusions. DD research is infrequent, and delusions in this disorder have been scarcely investigated. We aim to establish the state of the art of delusions research to date and point to the shortage of neuropsychological studies in patients with DD. We also justify the need for future research into the neuropsychological correlates of DD as measured in patients with this disorder given that most previous research has mainly focused on other psychotic conditions.

show abstract

Neuropsychological deficit in schizophrenic subtypes: Paranoid, nonparanoid, and schizoaffective subgroups

Cited by 87 publications

References 23 publications

Assessment of Frontal Lobe Functioning in Schizophrenia and Unipolar Major Depression

Assessment of Frontal Lobe Functioning in Schizophrenia and Unipolar Major Depression

Theories of Delusional Disorders

Neuropsychological Research in Delusional Disorder: A Comprehensive Review

Contact Info

Product

Resources

About