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Volume 28, Issue 1 (Spring 2026)
Advances in Cognitive Sciences 2026, 28(1): 75-89 |
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Jalil Piran M, Peymannia B, Marashi S A, Beshlideh K. Investigating the effectiveness of transcranial direct current stimulation on risky decision-making and response inhibiting in men with bipolar II disorder comorbid with a history of heroin use. Advances in Cognitive Sciences 2026; 28 (1) :75-89
URL: http://icssjournal.ir/article-1-1798-en.html
URL: http://icssjournal.ir/article-1-1798-en.html
1- PhD Candidate in Psychology, Department of Psychology, Faculty of Educational Sciences and Psychology, Shahid Chamran University of Ahvaz, Ahvaz, Iran
2- Assistant Professor, Department of Psychology, Faculty of Educational Sciences and Psychology, Shahid Chamran University of Ahvaz, Ahvaz, Iran
3- Associate Professor, Department of Psychology, Faculty of Educational Sciences and Psychology, Shahid Chamran University of Ahvaz, Ahvaz, Iran
4- Professor, Department of Psychology, Faculty of Educational Sciences and Psychology, Shahid Chamran University of Ahvaz, Ahvaz, Iran
2- Assistant Professor, Department of Psychology, Faculty of Educational Sciences and Psychology, Shahid Chamran University of Ahvaz, Ahvaz, Iran
3- Associate Professor, Department of Psychology, Faculty of Educational Sciences and Psychology, Shahid Chamran University of Ahvaz, Ahvaz, Iran
4- Professor, Department of Psychology, Faculty of Educational Sciences and Psychology, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Abstract: (464 Views)
Introduction: Bipolar II disorder comorbid with a history of heroin use is associated with impairments in response inhibition and risky decision-making. The present study aimed to investigate the effectiveness of Transcranial Direct Current Stimulation (tDCS) on response inhibition and risky decision-making in men with bipolar II disorder comorbid with a history of heroin use.
Methods: This was a quasi-experimental study with a pre-test, post-test, and follow-up design with a control group. The study population comprised men with bipolar II disorder comorbid with a history of heroin use who were referred to treatment centers in Isfahan, Iran, in 2024. A total of 32 individuals were randomly assigned to the experimental and control groups. The research instruments included the computerized Go/No-Go response inhibition task and the computerized Iowa Gambling Task (IGT). The experimental group received tDCS for 10 consecutive daily sessions, each lasting 20 minutes. Data analysis was performed using analysis of covariance (ANCOVA) via SPSS-24 software.
Results: The results indicated that tDCS significantly improved response inhibition including commission error (F=29.31, P<0.001), omission error (F=28.56, P<0.001), and reaction time (F=24.47, P < 0.001) and reduced risky decision-making (F=27.71, P<0.001) in the experimental group compared to the control group.
Conclusion: As a novel and effective intervention, tDCS can play a key role in reducing impulsive behaviors, facilitating the recovery process, and decreasing risky decision-making, making it a viable clinical application for individuals with bipolar II disorder comorbid with a history of heroin use.
Methods: This was a quasi-experimental study with a pre-test, post-test, and follow-up design with a control group. The study population comprised men with bipolar II disorder comorbid with a history of heroin use who were referred to treatment centers in Isfahan, Iran, in 2024. A total of 32 individuals were randomly assigned to the experimental and control groups. The research instruments included the computerized Go/No-Go response inhibition task and the computerized Iowa Gambling Task (IGT). The experimental group received tDCS for 10 consecutive daily sessions, each lasting 20 minutes. Data analysis was performed using analysis of covariance (ANCOVA) via SPSS-24 software.
Results: The results indicated that tDCS significantly improved response inhibition including commission error (F=29.31, P<0.001), omission error (F=28.56, P<0.001), and reaction time (F=24.47, P < 0.001) and reduced risky decision-making (F=27.71, P<0.001) in the experimental group compared to the control group.
Conclusion: As a novel and effective intervention, tDCS can play a key role in reducing impulsive behaviors, facilitating the recovery process, and decreasing risky decision-making, making it a viable clinical application for individuals with bipolar II disorder comorbid with a history of heroin use.
Keywords: Transcranial direct current stimulation, Response inhibition, Risky decision-making, Bipolar II disorder, Heroin
Type of Study: Research |
Received: 2025/05/27 | Accepted: 2026/08/25 | Published: 2026/09/6
Received: 2025/05/27 | Accepted: 2026/08/25 | Published: 2026/09/6
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