通过tDCS调节测试焦虑个体的抑制控制:一项ERP研究
Peibing Liu1, Zhaonian Hu1, Renlai Zhou2
1Department of Psychology, Nanjing University, Nanjing, China.
Journal of psychiatric research
|February 3, 2026
概括
超直流刺激 (tDCS) 可能改善高测试焦虑个体的抑制控制. 积极的tDCS针对左侧脊侧前额叶皮质减少了P3的幅度,表明了潜在的非侵入性干预.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 心理生理学 心理生理学
背景情况:
- 考试焦虑是影响学业成绩的一个普遍问题.
- 了解测试焦虑中抑制控制的神经支柱至关重要.
- 非侵入性脑刺激提供了一个潜在的干预途径.
研究的目的:
- 研究跨直流刺激 (tDCS) 对高测试焦虑症患者神经抑制控制效率的影响.
- 探索tDCS在调节测试焦虑中的潜在神经机制.
- 确定左背侧前额叶皮层 (DLPFC) 作为tDCS干预的潜在神经点.
主要方法:
- 招募了42名具有高或低测试焦虑的参与者.
- 用于主动 (阳道) 和虚假的tDCS,针对左侧DLPFC.
- 在Flanker任务中记录的与事件相关的潜力 (ERP),以评估抑制控制.
主要成果:
- 活跃的tDCS在高测试焦虑组中的P3组件振幅显著降低,与假的相比.
- 在低测试焦虑组中没有观察到活性tDCS的显著影响.
- 在抑制控制任务中,P3组件与注意力分配有关.
结论:
- tDCS通过激活左DLPFC来调节高测试焦虑症患者的神经抑制控制.
- 这项研究提供了支持非侵入性神经调节作为潜在的干预策略的电生理学证据.
- 左侧DLPFC被确定为tDCS在管理测试焦虑中的一个有前途的神经标.
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