Frontal and callosal neuropsychological performances in schizophrenia

Bellini, L.; Abbruzzese, Massimo; Gambini, Orsola; Rossi, Alessandro; Stratta, Paolo; Scarone, Silvio

doi:10.1016/0920-9964(91)90038-s

Cited by 14 publications

(2 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The WCST has long been used in neuropsychological investigations of schizophrenia, with considerable evidence indicating that SZ patients make a significantly higher number of perseverative responses than do normal control subjects and patients with other psychiatric disorders (Bellini et al, 1991, Braff et al, 1991, Abbruzzese et al, 1995, Cavallaro et al, 2003). What is also apparent, however, is that SZ patients are not characterized by high numbers of perseverative errors to the same degree as individuals with frontal lobe lesions (Heaton et al, 1979), and that SZ patients make many non-perseverative errors, as well, such that SZ patients do not differ significantly from controls in terms of the ratio of perseverative to non-perseverative errors (Li, 2004).…”

Section: Set-shifting In Schizophrenia: Is Perseveration a Major Fmentioning

confidence: 99%

The neural underpinnings of cognitive flexibility and their disruption in psychotic illness

Waltz

2017

Neuroscience

View full text Add to dashboard Cite

Schizophrenia has long been associated with a variety of cognitive deficits, including reduced cognitive flexibility. More recent findings, however, point to tremendous inter-individual variability among patients on measures of cognitive flexibility/set-shifting. With an eye toward shedding light on potential sources of variability in set-shifting abilities among schizophrenia patients, I examine the neural substrates of underlying probabilistic reversal learning (PRL) – a paradigmatic measure of cognitive flexibility – as well as neuromodulatory influences upon these systems. Finally, I report on behavioral and neuroimaging studies of PRL in schizophrenia patients, discussing the potentially influences of illness profile and antipsychotic medications on cognitive flexibility in schizophrenia.

show abstract

Section: Set-shifting In Schizophrenia: Is Perseveration a Major Fmentioning

confidence: 99%

The neural underpinnings of cognitive flexibility and their disruption in psychotic illness

Waltz

2017

Neuroscience

View full text Add to dashboard Cite

show abstract

“…[9] The schizophrenics had taken more number of trials to complete the first categories in a report by Bellini et al . compared to “normals.”[28]…”

Section: Discussionmentioning

confidence: 99%

Wisconsin Card Sorting Test performance impairment in schizophrenia: An Indian study report

Singh

Aich

Bhattarai

2017

Indian J Psychiatry

View full text Add to dashboard Cite

Aim:The present study attempted to find out the relationship between positive and negative clinical symptoms and Wisconsin Card Sorting Test (WCST) performance in a group of schizophrenia patients.Methodology:Fifty schizophrenia patients were assessed using the Positive and Negative Syndrome Scale (PANSS) by a trained psychiatrist (TKA) and two groups, each of 25 positive symptom and 25 negative symptom schizophrenia patients were formed. On these fifty patients with schizophrenia and 15 normal control groups, WCST measures were applied by a clinical psychologist (SS) who remained blind to the PANSS score.Results:Schizophrenia diagnosis significantly affects WCST performances. One-way analysis of variance (ANOVA) revealed schizophrenia patients showed a significant impairment on all WCST indices compared with normal subjects except versus total number of correct responses. Post hoc comparison (Tukey HSD Test) between means revealed that negative schizophrenia patients showed significantly worse performance on most WCST performance parameters: percent errors, perseverative responses, percent perseverative responses, perseverative errors, percent perseverative errors, and conceptual level responses.Conclusions:Both positive and negative symptom schizophrenia patients have some distinct WCST measures deficits.

show abstract

Wisconsin Card Sorting Test performance in obsessive-compulsive disorder: no evidence for involvement of dorsolateral prefrontal cortex

Abbruzzese

Ferri

Scarone

1995

Psychiatry Research

128

View full text Add to dashboard Cite

Frontal and callosal neuropsychological performances in schizophrenia

Cited by 14 publications

References 24 publications

The neural underpinnings of cognitive flexibility and their disruption in psychotic illness

The neural underpinnings of cognitive flexibility and their disruption in psychotic illness

Wisconsin Card Sorting Test performance impairment in schizophrenia: An Indian study report

Wisconsin Card Sorting Test performance in obsessive-compulsive disorder: no evidence for involvement of dorsolateral prefrontal cortex

Contact Info

Product

Resources

About