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Aguilera M, Rodríguez-Ferreiro J. Differential Effects of Schizotypy Dimensions on Creative Personality and Creative Products. CREATIVITY RESEARCH JOURNAL 2021. [DOI: 10.1080/10400419.2020.1866895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Mari Aguilera
- Department de Cognició, Desenvolupament i Psicologia de l’Educació, Secció de Processos Cognitius, Universitat de Barcelona
- Institut de Neurociències, Universitat de Barcelon
| | - Javier Rodríguez-Ferreiro
- Department de Cognició, Desenvolupament i Psicologia de l’Educació, Secció de Processos Cognitius, Universitat de Barcelona
- Institut de Neurociències, Universitat de Barcelon
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Preti A, Siddi S, Vellante M, Scanu R, Muratore T, Gabrielli M, Tronci D, Masala C, Petretto DR. Bifactor structure of the schizotypal personality questionnaire (SPQ). Psychiatry Res 2015; 230:940-50. [PMID: 26607431 DOI: 10.1016/j.psychres.2015.11.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Revised: 09/21/2015] [Accepted: 11/09/2015] [Indexed: 10/22/2022]
Abstract
The schizotypal personality questionnaire (SPQ) is used to characterize schizotypy, a complex construct helpful for the investigation of schizophrenia-related psychopathology and putative endophenotypes. The SPQ factor structure at item level has been rarely replicated and no study had tested a bifactor model of the SPQ so far. The unidimensional, the correlated, the second-order and the bifactor models of the SPQ were tested to evaluate whether the items converge into a major single factor defining the schizotypy-proneness of the participants, to be used for grouping purpose. Parallel principal component analysis (PCA) and confirmatory factor analysis (CFA) were used to determine the optimal number of factors and components in a cross-sectional, survey design involving 649 college students (males: 47%). The first-order, nine-subscale model was confirmed by CFA in the whole sample. The best evidence from parallel PCA in the training set was in favor of a two-factor model; the bifactor implementation of this model showed good fit in the subsequent CFA. Two main dimensions of positive and negative symptoms underlie schizotypy in non-clinical samples, entailing specific risk of psychosis. On a measurement level, the study provided support for the use of the total scores of the SPQ to characterize schizotypy.
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Affiliation(s)
- Antonio Preti
- Center of Liaison Psychiatry and Psychosomatics, University Hospital, University of Cagliari, Cagliari, Italy; Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Cagliari, Italy; Genneruxi Medical Center, Cagliari, Italy.
| | - Sara Siddi
- Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Cagliari, Italy; Unit of Research and development, Parc Sanitari Sant Joan de Déu, Sant Boi de Llobregat, Spain
| | - Marcello Vellante
- Center of Liaison Psychiatry and Psychosomatics, University Hospital, University of Cagliari, Cagliari, Italy
| | - Rosanna Scanu
- Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Cagliari, Italy
| | - Tamara Muratore
- Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Cagliari, Italy
| | - Mersia Gabrielli
- Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Cagliari, Italy
| | - Debora Tronci
- Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Cagliari, Italy
| | - Carmelo Masala
- Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Cagliari, Italy
| | - Donatella Rita Petretto
- Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Cagliari, Italy
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García-Montes JM, Noguera C, Alvarez D, Ruiz M, Cimadevilla Redondo JM. High and low schizotypal female subjects do not differ in spatial memory abilities in a virtual reality task. Cogn Neuropsychiatry 2015; 19:427-38. [PMID: 24655143 DOI: 10.1080/13546805.2014.896786] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Schizotypy is a psychological construct related to schizophrenia. The exact relationship between both entities is not clear. In recent years, schizophrenia has been associated with hippocampal abnormalities and spatial memory problems. The aim of this study was to determine possible links between high schizotypy (HS) and low schizotypy (LS) and spatial abilities, using virtual reality tasks. We hypothesised that the HS group would exhibit a lower performance in spatial memory tasks than the LS group. METHODS Two groups of female students were formed according to their score on the ESQUIZO-Q-A questionnaire. HS and LS subjects were tested on two different tasks: the Boxes Room task, a spatial memory task sensitive to hippocampal alterations and a spatial recognition task. RESULTS Data showed that both groups mastered both tasks. Groups differed in personality features but not in spatial performance. These results provide valuable information about the schizotypy-schizophrenia connections. CONCLUSION Schizotypal subjects are not impaired on spatial cognition and, accordingly, the schizotypy-schizophrenia relationship is not straightforward.
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