Attribution Bias in schizophrenian patients who have auditory hallucination

AUTHORS

Najmeh Rasti Kerdar 1 , * , Seyed Mohammadreza Taghavi 2 , Mohammad Ali Goodarzi 3 , Ahmad Ghanizade 3

AUTHORS INFORMATION

1 Instructor Department of clinical Psyschology, Research Center of Behavioral and Neuro Sciences, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.

2 Professor Department of Clinical Psychology, Research Center of Psychatry and Behavioral and Neuro Sciences, Shiraz University of Medical Sciences, Shiraz, Iran.

3 Associate Department of Clinical Psychology, Research Center of Psychatry and Behavioral and Neuro Sciences, Shiraz University of Medical Sciences, Shiraz, Iran.

ARTICLE INFORMATION

Hormozgan Medical Journal: 17 (2); e88090
Published Online: September 04, 2012
Article Type: Research Article
Received: October 04, 2011
Accepted: September 04, 2012

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Abstract

Introduction: Concerning cognitivism, psychotic experiences (hallucination) of
schizophrenic patiets have been hypothesized to originate from a fundamentally cognitive
biases.
Methods: To explor the idea that attribution bias may underlin appearance of auditory
hallucination, in the current descriptive study, a source-monitoring task were used to
compare healthy controles with relatives of individuals with schizophrenia who had
experienced current auditory hallucinations and those relatives who had not and individuals
with major depression disorders across all of the schizophrenic and major depression
patients of four shiraz psychiatry hospital.
Results: The data were analyzed with regard to d´, β and attribution bias scores. This
scores is accounted based on SDT statistical method. Relative to three other groups,
schizophrenian patients who had experienced current auditory hallucination in visual version
of source monitoring task had poorer performance in attribution bias scores than, that hasn’t
attribute to the β scores and antipsychotic medication.
Conclusion: The results has been explained in the light of the fernyhogh’s re-expansion
model (2004) and show the deficit in interactional relationship between attribution bias and
inner speech.

Keywords

Schizophrenia – Hallucinations - Bias – Depressive Disorder Major

© 2013, 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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