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Effect of Intensified Transcranial Direct-Current Stimulation Targeting Bilateral Dorsolateral Prefrontal Cortex on Craving Reduction in Patients With Opioid (Heroin) Use Disorder Publisher



Tameh HA1 ; Imani S1 ; Alizadehgoradel J2 ; Noroozi A3
Authors
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Authors Affiliations
  1. 1. Department of Counseling, Faculty of Educational Sciences and Psychology, Shahid Beheshti University, Tehran, Iran
  2. 2. Department of Psychology, Faculty of Humanities, University of Zanjan, Zanjan, Iran
  3. 3. Iranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences (TUMS), Tehran, Iran

Source: Clinical Psychopharmacology and Neuroscience Published:2024


Abstract

Objective: This study aimed to analyze the effect of the intensified transcranial direct-current stimulation (tDCS) targeting bilateral dorsolateral prefrontal cortex (DLPFC) on craving reduction in patients with opioid use disorder. Methods: This quasi-experimental study was conducted on 30 individuals who participated voluntarily at Baharan Camp of Shahid Mahalati. The participants had already completed the detoxification phase and stayed at the camp to resolve their craving and gain occupational skills to reintegrate into the community. The participants were selected using convenience and purposive sampling methods and were then assigned to an experimental group (n = 15) and a control group (n = 15). The experimental group received ten 20-minute tDCS sessions twice a day for 5 consecutive days. There was a 20-minute break between the two stimulations. The DLPFC was stimulated with a current intensity of 2 mA (anode: F3 and cathode: F4). The control group received a sham stimulation. Both groups completed Franken’s Desires for Drug Questionnaire at baseline and after the stimulation sessions. Additionally, they completed the questionnaires once again three months after the end of the treatment to assess treatment retention. Results: At the posttest stage, the intensified tDCS had significant effects on momentary opioid craving reduction in all measured factors, e.g., desire and intention, negative reinforcement, and control (p ＜ 0.001). However, the results concerning treatment retention at the 3-month follow-up stage were insignificant for all factors (p ＜ 0.001). Conclusion: Apparently, tDCS can be used as a tool to reduce craving. However, its application as an independent and sustainable treatment remains debatable. © 2024, Korean College of Neuropsychopharmacology.
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