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Executive dysfunctions in schizophrenia measured using a virtual reality task - Jansari assessment of Executive Functions (JEF©)

Published online by Cambridge University Press:  19 July 2023

E. Tyburski ,
A. Bober ,
M. Mak ,
E. Karabanowicz ,
P. Podwalski ,
J. Samochowiec ,
A. Michalczyk ,
L. Sagan ,
S. T. Mueller  and
E. Zawadzka
...Show all authors
E. Tyburski*
Affiliation:
1Department of Health Psychology, Pomeranian Medical University in Szczecin
A. Bober
Affiliation:
1Department of Health Psychology, Pomeranian Medical University in Szczecin
M. Mak
Affiliation:
1Department of Health Psychology, Pomeranian Medical University in Szczecin
E. Karabanowicz
Affiliation:
2Institute of Psychology, University of Szczecin
P. Podwalski
Affiliation:
3Department of Psychiatry
J. Samochowiec
Affiliation:
3Department of Psychiatry
A. Michalczyk
Affiliation:
3Department of Psychiatry
L. Sagan
Affiliation:
4Department of Neurosurgery, Pomeranian Medical University in Szczecin, Szczecin, Poland
S. T. Mueller
Affiliation:
5Department of Cognitive and Learning Sciences, Michigan Technological University, Houghton, United States
E. Zawadzka
Affiliation:
6Department of Clinical Psychology and Neuropsychology, Maria Curie-Skłodowska University, Lublin
M. Folkierska
Affiliation:
7Faculty of Psychology, University of Warsaw, Warsaw, Poland
A. Jansari
Affiliation:
8Department of Psychology, Goldsmiths, University of London, London, United Kingdom
*
*Corresponding author.

Abstract

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Introduction

Impairments in executive functions are often observed in schizophrenia. However, previous studies using standard tests show inconclusive and conflicting findings.

Objectives

The main objective of this study was to compare the performance of schizophrenia patients and healthy controls on classical tasks and a non-immersive virtual reality task, Jansari assessment of Executive Functions (JEF©)

Methods

A total of 71 schizophrenia patients and 80 healthy controls took part in the study. Executive functions were assessed with JEF© and the following classical tasks: Color Trail Test (CTT), Stroop Color World Test (SCWT), Ruff Figural Fluency Test (RFFT), and computerized tasks from the PEBL battery: Berg Card Sorting Test (BCST), Tower of London (TOL), and Go/No Go task (GNG). The Positive and Negative Syndrome Scale (PANSS) was used to assess psychopathological symptoms.

Results

Compared to healthy controls, schizophrenia patients scored lower on most of JEF© indices i.e., prioritization, selective-thinking, creative-thinking, adaptive-thinking, multi-tasking, time-based prospective memory, event-based prospective memory, and action-based prospective memory (p < 0.001). Moreover, schizophrenia patients performed poorer on all traditional tasks (p < 0.001), except the GNG task.

Conclusions

Schizophrenia patients were demonstrated to manifest deficits in executive functions as measured by traditional tests, such as concept formation, problem-solving, cognitive flexibility, planning or cognitive inhibition, and the executive functions measured by the JEF© i.e., those that are used and observed in everyday situations such as working in an office.

This research was funded by the National Science Centre in Poland, grant number 2020/04/X/HS6/01920.

Disclosure of Interest

None Declared

Type
Abstract
Information
European Psychiatry , Volume 66 , Special Issue S1: Abstracts of the 31st European Congress of Psychiatry , March 2023 , pp. S261
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of the European Psychiatric Association
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