中国组织工程研究 ›› 2023, Vol. 27 ›› Issue (23): 3736-3741.doi: 10.12307/2023.574

• 组织构建基础实验 basic experiments in tissue construction • 上一篇    下一篇

经颅直流电刺激背外侧前额叶对手机成瘾者注意偏向的作用

姜学敏,王  钰,孙延林   

  1. 天津体育学院,教育与心理学院,天津市  301617
  • 收稿日期:2022-07-25 接受日期:2022-09-24 出版日期:2023-08-18 发布日期:2023-01-16
  • 通讯作者: 孙延林,博士,教授,天津体育学院,教育与心理学院,天津市 301617
  • 作者简介:姜学敏,女,1996年生,辽宁省开原市人,汉族,天津体育学院在读硕士。
  • 基金资助:
    天津市研究生科研创新项目(2021YJSS317),项目负责人:姜学敏

Transcranial direct current stimulation of the dorsolateral prefrontal cortex improves attentional bias in mobile phone addicts

Jiang Xuemin, Wang Yu, Sun Yanlin   

  1. School of Education and Psychology, Tianjin University of Sport, Tianjin 301617, China
  • Received:2022-07-25 Accepted:2022-09-24 Online:2023-08-18 Published:2023-01-16
  • Contact: Sun Yanlin, PhD, Professor, School of Education and Psychology, Tianjin University of Sport, Tianjin 301617, China
  • About author:Jiang Xuemin, Master candidate, School of Education and Psychology, Tianjin University of Sport, Tianjin 301617, China
  • Supported by:
    Tianjin Municipal Graduate Reseach and Innovation Project, No.2021YJSS317 (to JXM)

摘要:

文题释义:

经颅直流电刺激:是一种使用在头皮上的2个或多个电极通过微弱直流电(1.0-2.0 mA),调节大脑皮质神经元活动的非侵入性脑刺激技术。单次的经颅直流电刺激背外侧前额叶皮质,可有效减轻成瘾行为的心理依赖性。 
背外侧前额叶:对注意偏向的调节至关重要,外侧前额叶皮质在控制个体注意偏向的传入信息方面发挥重要作用。

背景:经颅直流电在成瘾行为的矫正方面起到显著的作用,往往行为成瘾都会伴随对特定刺激物习惯性行为的注意偏向,手机成瘾作为行为成瘾的一种,也不例外。
目的:试图通过经颅直流电刺激干预对手机成瘾者的左侧背外侧前额叶进行以阴极为中心极(2 mA,20 min)的刺激,旨在发现对手机成瘾者注意偏向的影响。
方法:招募天津体育学院39名健康大学生为试验对象,其中手机成瘾组被试21名,非手机成瘾组被试18名。两组被试均对背外侧前额叶进行2 mA阴极为中心极的经颅直流电刺激,刺激20 min,采用2×3混合设计,分别从生理指标、行为反应指标、眼动指标等3个方面论证经颅直流电刺激对于手机成瘾者的注意偏向起到干预作用。

结果与结论:①受试者的心率、血压干预前、后均没有显著变化;②干预前,手机成瘾组在点探测任务中的反应时长于非手机成瘾组,正确率低于非手机成瘾组,且差异有显著性意义(P < 0.05);干预后手机成瘾组被试的反应时缩短、正确率提升,相较于干预前差异有显著性意义(P < 0.05);③干预前,手机成瘾组与非手机成瘾组在反眼跳任务中的总体注视次数、总体注视时间、注视修正时间、扫视修正时间、朝前的扫视时间、扫视次数等指标相比差异均有显著性意义(P < 0.05);④干预后,手机成瘾组的总体注视次数、总体注视时间、注视修正时间、扫视修正时间、朝前的扫视时间、扫视次数等指标相较于干预前均显著改善(P < 0.05);⑤提示经颅直流电刺激背外侧前额叶对手机成瘾者注意偏向可起到改善作用。

https://orcid.org/ 0000-0002-0997-5694(姜学敏)

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 经颅直流电刺激, 背外侧前额叶, 注意偏向, 手机成瘾, 行为反应

Abstract: BACKGROUND: Transcranial direct current stimulation plays a significant role in the correction of addictive behaviors. Behavioral addiction is often accompanied by attentional bias to habitual behaviors of specific stimuli. As a kind of behavioral addiction, mobile phone addiction is no exception.
OBJECTIVE: To explore the effect of transcranial direct current stimulation on the attentional bias of mobile phone addicts through the transcranial direct current stimulation (2 mA, 20 minutes) of the left dorsolateral prefrontal lobe with cathode as the center pole.
METHODS: A total of 39 health college students from Tianjin University of Sport were recruited as experimental subjects. Among them, 21 were assigned into mobile phone addiction group and 18 assigned into non-mobile phone addiction groups. All the subjects underwent transcranial direct current stimulation (2 mA, 20 minutes) of the left dorsolateral prefrontal lobe with cathode as the center pole, at a 2×3 mixed design. The interventional effects were demonstrated from three aspects: physiological indicators, behavioral response indicators, and eye movement indicators. 
RESULTS AND CONCLUSION: There were no significant changes in heart rate and blood pressure before and after intervention. Before intervention, compared with the non-mobile phone addiction group, the mobile phone addiction group showed significantly longer response time and lower accuracy in the dot-probe task (P < 0.05). After intervention, the response time and accuracy of the mobile phone addiction group were both significantly improved (P < 0.05). Before intervention, there were significant differences in total fixation times, total fixation time, fixation correction time, saccade correction time, forward saccade time, and saccade times between the mobile phone addiction group and the non-mobile phone addiction group in the anti-saccade task (P < 0.05). 
After intervention, the total fixation times, total fixation time, fixation correction time, saccade correction time, forward saccade, and saccade times were all improved in the mobile phone addiction group compared with those before the intervention (P < 0.05). To conclude, transcranial direct current stimulation of the dorsolateral prefrontal cortex can improve attentional bias in mobile phone addicts.

Key words: transcranial direct current stimulation, dorsolateral prefrontal lobe, attentional bias, mobile phone addiction, behavioral response

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