Cognitive disorganisation in schizotypy is associated with deterioration in visual backward masking.
Détails
ID Serval
serval:BIB_86AFC8C7F8D3
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Cognitive disorganisation in schizotypy is associated with deterioration in visual backward masking.
Périodique
Psychiatry Research
ISSN
1872-7123 (Electronic)
ISSN-L
0165-1781
Statut éditorial
Publié
Date de publication
2012
Peer-reviewed
Oui
Volume
200
Numéro
2-3
Pages
652-659
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Résumé
To understand the causes of schizophrenia, a search for stable markers (endophenotypes) is ongoing. In previous years, we have shown that the shine-through visual backward masking paradigm meets the most important characteristics of an endophenotype. Here, we tested masking performance differences between healthy students with low and high schizotypy scores as determined by the self-report O-Life questionnaire assessing schizotypy along three dimensions, i.e. positive schizotypy (unusual experiences), cognitive disorganisation, and negative schizotypy (introvertive anhedonia). Forty participants performed the shine-through backward masking task and a classical cognitive test, the Wisconsin Card Sorting Task (WCST). We found that visual backward masking was impaired for students scoring high as compared to low on the cognitive disorganisation dimension, whereas the positive and negative schizotypy dimensions showed no link to masking performance. We also found group differences for students scoring high and low on the cognitive disorganisation factor for the WCST. These findings indicate that the shine-through paradigm is sensitive to differences in schizotypy which are closely linked with the pathological expression in schizophrenia.
Mots-clé
Low-level visual perception, High risk studies, Endophenotype, Dimensional and categorical models of schizotypy, WCST
Pubmed
Web of science
Création de la notice
05/07/2012 8:10
Dernière modification de la notice
20/08/2019 14:46