Comparison of Theory of Mind between Patients with Major Depressive Disorder and Stimulant-Induced Depressive Disorder

Objective: Theory of mind (ToM) denotes the ability to understand the mental state of others and perceive their unique beliefs and emotions. In this study, we compared ToM between individuals with major depressive disorder (MDD) and stimulant-induced depressive disorder (SIDD). Method: This cros...

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Main Authors: Leila Razeghian Jahromi, Mohammad Ali Tlais, Hassan Kamar, Alireza Jalali
Format: Article
Language:English
Published: Tehran University of Medical Sciences 2023-12-01
Series:Iranian Journal of Psychiatry
Subjects:
Online Access:https://ijps.tums.ac.ir/index.php/ijps/article/view/3290
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author Leila Razeghian Jahromi
Mohammad Ali Tlais
Hassan Kamar
Alireza Jalali
author_facet Leila Razeghian Jahromi
Mohammad Ali Tlais
Hassan Kamar
Alireza Jalali
author_sort Leila Razeghian Jahromi
collection DOAJ
description Objective: Theory of mind (ToM) denotes the ability to understand the mental state of others and perceive their unique beliefs and emotions. In this study, we compared ToM between individuals with major depressive disorder (MDD) and stimulant-induced depressive disorder (SIDD). Method: This cross-sectional, causal-comparative study included patients with MDD or SIDD admitted to Ostad Moharary Neuropsychiatric Hospital between January and June 2022. Each diagnosis was confirmed through a semi-structured interview conducted by a single attending psychiatrist according to the DSM-5 criteria. After consecutive sampling of 110 individuals, 51 patients completed the study in each group. Demographic characteristics were recorded, and the Persian version of the revised Reading the Mind in the Eyes Test (RMET) was used to evaluate ToM. Statistical analysis was performed using SPSS v.25, employing the t-test, chi-squared test, linear regression, and analysis of covariance (ANCOVA). Results: Our analysis included 102 subjects (65.7% male) with a mean age of 35.17 ± 7.54 years. The two groups were similar in age, gender, marital status, working status, occupation, economic class, and ethnicity (P > 0.05). The RMET scores were 12.94 ± 4.03 and 11.86 ± 3.15 in the MDD and SIDD groups, respectively (P = 0.135). Almost all patients had low RMET scores (< 22); only two individuals in the MDD group achieved normal scores (22–30). ANCOVA revealed no significant confounding effects between the independent variables. Furthermore, regression analysis revealed that the level of education had a significant linear relationship (β = 0.249) with the RMET score (P = 0.021). Conclusion: Hospitalized patients with MDD and SIDD have similar ToM deficits, as measured by the RMET.
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spelling doaj.art-d1597e757d184fcca782f9e6b5a619532024-01-10T06:08:52ZengTehran University of Medical SciencesIranian Journal of Psychiatry1735-45872008-22152023-12-0119110.18502/ijps.v19i1.14336Comparison of Theory of Mind between Patients with Major Depressive Disorder and Stimulant-Induced Depressive DisorderLeila Razeghian Jahromi0Mohammad Ali Tlais1Hassan Kamar2Alireza Jalali3Research Center for Psychiatry and Behavior Science, Department of Psychiatry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran.Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran.Research Center for Psychiatry and Behavior Science, Department of Psychiatry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran. Objective: Theory of mind (ToM) denotes the ability to understand the mental state of others and perceive their unique beliefs and emotions. In this study, we compared ToM between individuals with major depressive disorder (MDD) and stimulant-induced depressive disorder (SIDD). Method: This cross-sectional, causal-comparative study included patients with MDD or SIDD admitted to Ostad Moharary Neuropsychiatric Hospital between January and June 2022. Each diagnosis was confirmed through a semi-structured interview conducted by a single attending psychiatrist according to the DSM-5 criteria. After consecutive sampling of 110 individuals, 51 patients completed the study in each group. Demographic characteristics were recorded, and the Persian version of the revised Reading the Mind in the Eyes Test (RMET) was used to evaluate ToM. Statistical analysis was performed using SPSS v.25, employing the t-test, chi-squared test, linear regression, and analysis of covariance (ANCOVA). Results: Our analysis included 102 subjects (65.7% male) with a mean age of 35.17 ± 7.54 years. The two groups were similar in age, gender, marital status, working status, occupation, economic class, and ethnicity (P > 0.05). The RMET scores were 12.94 ± 4.03 and 11.86 ± 3.15 in the MDD and SIDD groups, respectively (P = 0.135). Almost all patients had low RMET scores (< 22); only two individuals in the MDD group achieved normal scores (22–30). ANCOVA revealed no significant confounding effects between the independent variables. Furthermore, regression analysis revealed that the level of education had a significant linear relationship (β = 0.249) with the RMET score (P = 0.021). Conclusion: Hospitalized patients with MDD and SIDD have similar ToM deficits, as measured by the RMET. https://ijps.tums.ac.ir/index.php/ijps/article/view/3290Major Depressive DisorderPsychometricsSubstance-Related DisordersTheory of Mind
spellingShingle Leila Razeghian Jahromi
Mohammad Ali Tlais
Hassan Kamar
Alireza Jalali
Comparison of Theory of Mind between Patients with Major Depressive Disorder and Stimulant-Induced Depressive Disorder
Iranian Journal of Psychiatry
Major Depressive Disorder
Psychometrics
Substance-Related Disorders
Theory of Mind
title Comparison of Theory of Mind between Patients with Major Depressive Disorder and Stimulant-Induced Depressive Disorder
title_full Comparison of Theory of Mind between Patients with Major Depressive Disorder and Stimulant-Induced Depressive Disorder
title_fullStr Comparison of Theory of Mind between Patients with Major Depressive Disorder and Stimulant-Induced Depressive Disorder
title_full_unstemmed Comparison of Theory of Mind between Patients with Major Depressive Disorder and Stimulant-Induced Depressive Disorder
title_short Comparison of Theory of Mind between Patients with Major Depressive Disorder and Stimulant-Induced Depressive Disorder
title_sort comparison of theory of mind between patients with major depressive disorder and stimulant induced depressive disorder
topic Major Depressive Disorder
Psychometrics
Substance-Related Disorders
Theory of Mind
url https://ijps.tums.ac.ir/index.php/ijps/article/view/3290
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