Comparing jumping to conclusion and personalization biases in schizophrenic patients with and without medication therapy

AUTHORS

Zahra Saffarian 1 , * , Mohammad Ali Goodarzi 2 , Najmeh Rasti Kerdar 3

AUTHORS INFORMATION

1 PhD Student of Clinical Psychology, Rehabilitation and Social Welfare University of Tehran, Tehran, Iran.

2 Department of Clinical Psychology, Research Center of Behavioral and Neurosciences, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.

3 MSc of Clinical Psychology, Research Center of Behavioral and Neurosciences, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.

ARTICLE INFORMATION

Hormozgan Medical Journal: 19 (3); e87549
Published Online: July 29, 2013
Article Type: Research Article
Received: February 24, 2013
Accepted: July 29, 2013

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Abstract

Introduction: Previous studies have reported contradicting results about the effect of
medication therapy on attribution bias and jumping to conclusion (JTC) bias in
schizophrenic patients. This study aims at analyzing the effect of medication on attribution
bias and JTC bias in schizophrenic patients.
Methods: This study is an ex post facto and casual-comparative research. 28 people
including 14 schizophrenic patients, who have not used drugs already, and 14 schizophrenic
patients, who have used drugs at least for past 4 weeks, were selected and they did not show
any significant difference in terms of age, gender and education level. Computer-based
similarities task and Internal-Personal-Situational Attributions questionnaire were used for
analyzing jumping to conclusion bias and attribution bias, respectively.
Results: The independent T-test was used to analyze data. The results showed that
schizophrenic patients, who had used drug at least for 4 weeks, gained higher scores in
similarities task in contrast to patients, who did not use drugs; however, they did not show
any significant difference in score of personalization subscale in Internal-Personal-
Situational Attributions Questionnaires.
Conclusion: Jumping to conclusion bias was reduced after medication therapy, so it is a
postural trait whereas personalization bias was not reduced by medication therapy, so it is
a character-based trait.

Keywords

Jumping to Conclusion Bias – Patients - Schizophernia

© 2015, Hormozgan Medical Journal. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.
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