Shiasy Yasaman, Shakiba Shima, Taremian Farhad, Akhavan Hejazi Seyed Majid, Abasi Alireza
Department of Clinical Psychology, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
Substance Abuse and Dependence Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
Iran J Psychiatry. 2020 Apr;15(2):112-125.
The present study aimed to compare the effect of ABM (attention bias modification) with and without tDCS (transcranial direct current stimulation) on attention bias, pain intensity, and disability due to pain and pain-related psychological consequences, such as depression, anxiety, and stress. Using convenience sampling, 60 individuals who met the criteria for chronic low back pain (LBP) were selected and randomly assigned in to 2 experimental groups and 2 control and sham-tDCS groups. The experimental ABM group received 5 sessions of the dot-probe task, while the second experimental group received 5 sessions of dot-probe task combined with tDCS. The findings indicated that ABM and ABM+tDCS could reduce attention bias and pain-related psychological consequences significantly, compared to the control and sham groups. Also, attention bias and pain outcomes (depression, anxiety, disability due to pain and pain intensity) remained in ABM+tDCS group than in ABM group in a 1-month follow-up. It was found that tDCS + ABM had no additional effects at the end of intervention, but led to more long-lasting effects in 1-month follow-up. Randomized clinical trial registry number: IRCT20171107037306N1.
本研究旨在比较有无经颅直流电刺激（tDCS）的注意偏向修正（ABM）对注意偏向、疼痛强度、因疼痛导致的残疾以及疼痛相关心理后果（如抑郁、焦虑和压力）的影响。采用便利抽样法，选取60名符合慢性下腰痛（LBP）标准的个体，并将其随机分为2个实验组以及2个对照和假tDCS组。实验性ABM组接受5次点探测任务训练，而第二个实验组接受5次结合tDCS的点探测任务训练。研究结果表明，与对照组和假刺激组相比，ABM和ABM + tDCS可显著降低注意偏向和疼痛相关心理后果。此外，在1个月的随访中，ABM + tDCS组的注意偏向和疼痛结果（抑郁、焦虑、因疼痛导致的残疾和疼痛强度）比ABM组持续时间更长。研究发现，tDCS + ABM在干预结束时没有额外效果，但在1个月的随访中产生了更持久的效果。随机临床试验注册号：IRCT20171107037306N1。
