| 摘要: |
| 目的 探究经颅直流电刺激（tDCS）单独或联合工作记忆训练（2-back任务）对军校医学生抑制功能的影响，为提高军校医学生的认知和学业成绩提供依据。方法 选取36名军校医学生随机分为3组，每组12人，分别行20 min 1.5 mA tDCS并2-back任务训练（联合组）、tDCS伪刺激并2-back任务训练（2-back组）和20 min 1.5 mA tDCS并小说阅读（tDCS组），干预4周，每周3次。比较干预前后各组抑制功能反应时和正确率的变化。结果 干预后联合组的抑制功能反应时较干预前降低[（801.27±91.21）ms vs（883.52±73.18）ms，P=0.028，G2=0.210]，正确率较干预前提高[0.98±0.02 vs 0.96±0.04，P=0.005，G2=0.341]。tDCS组和2-back组干预前后的抑制功能反应时及正确率差异均无统计学意义（P>0.05），tDCS组反应时效果量（G2=0.167）>2-back组。结论 tDCS可以提升军校医学生的抑制功能。联合使用tDCS与2-back任务对于抑制功能的提升效果优于单独使用。 |
| 关键词: 经颅直流电刺激 工作记忆训练 工作记忆 抑制(心理学) 军校医学生 |
| DOI：10.16781/j.0258-879x.2021.04.0457 |
| 投稿时间：2020-03-24修订日期：2020-06-11 |
| 基金项目:军队"十三五"重大项目（AWS17J012）. |
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| Effects of transcranial direct current stimulation and working memory training on inhibitory control function of military medical students |
| LIU Quan-hui1,2,ZHOU Tian-xiang1,LIU Wei-zhi3,ZHU Xia1* |
(1. Department of Military Psychology, Faculty of Military Medical Psychology, Air Force Medical University, Xi'an 710032, Shaanxi, China;
2. Department of Psychology, Air Force Hospital of PLA Northern Theater Command, Shenyang 110041, Liaoning, China;
3. Department of Basic Psychology, Faculty of Psychology, Naval Medical University(Second Military Medical University), Shanghai 200433, China
*Corresponding author) |
| Abstract: |
| Objective To explore the effects of transcranial direct current stimulation (tDCS) alone or in combination with working memory training (2-back task) on inhibitory control function of military medical students, so as to provide evidence for improving their cognitive function and academic achievement. Methods Thirty-six military medical students were evenly randomized into 3 groups, and they were intervened by 20 min 1.5 mA tDCS and 2-back task training (combined group), sham-tDCS and 2-back task training (2-back group), or 20 min 1.5 mA tDCS and novel reading (tDCS group) 3 times a week for 4 weeks, respectively. The changes of response time and correct rate of inhibitory control function were compared before and after the intervention. Results The response time of the inhibitory control function of the combined group after the intervention was lower than that before intervention ([801.27±91.21] ms vs[883.52±73.18] ms, P=0.028, G2=0.210), while the correct rate was increased after the intervention (0.98±0.02 vs 0.96±0.04, P=0.005, G2=0.341). There was no significant difference in the response time or correct rate of inhibitory control function between the tDCS group and 2-back group before and after the intervention (P>0.05), while the effect size of response time of the tDCS group (G2=0.167) was higher than that of the 2-back group. Conclusion tDCS can improve the inhibitory control function of military medical students, and the effect of tDCS combined with 2-back task is better than that of tDCS alone. |
| Key words: transcranial direct current stimulation working memory training working memory inhibition (psychology) military medical students |
