相关实验视频
Updated: Jan 11, 2026
08:17
Reducing State Anxiety Using Working Memory Maintenance
Published on: July 19, 2017
8.1K
额叶皮层刺激调节注意力电路,增加焦虑,在焦虑抑郁症中增强惊
Tate Poplin1, Rayus Kuplicki2, Ebony A Walker3
1Laureate Institute for Brain Research, Tulsa, OK, USA; Department of Psychology, Wayne State University, Detroit, MI, USA.
Biological psychiatry. Cognitive neuroscience and neuroimaging
|November 14, 2025
概括
跨直流刺激 (tDCS) 在焦虑抑郁症中改善了执行功能,但没有降低威胁敏感度. 需要进一步的研究来优化这个患者群体的tDCS.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 临床心理学 临床心理学
背景情况:
- 重度抑郁症 (MDD) 与伴随性焦虑症构成治疗挑战,往往导致高复发率.
- 超直流刺激 (tDCS) 是一种非侵入性方法,针对与焦虑抑郁有关的神经回路.
- 了解tDCS对焦虑抑郁症威胁敏感性的影响,对于开发有效干预措施至关重要.
研究的目的:
- 调查tDCS对神经,行为和生理威胁敏感度的急性影响.
- 评估TDCS对焦虑抑郁症患者大脑活动,情绪处理和生理反应的影响.
主要方法:
- 这是一项双盲随机试验,涉及141名患有MDD和高焦虑症的参与者.
- 在fMRI期间,参与者接受了30分钟的活跃 (2mA) 或假装的tDCS,目标是背侧前额皮层 (DLPFC).
- 测量包括神经对情绪表情的反应,恐惧强化的惊 (FPS) 和焦虑强化的惊 (APS).
主要成果:
- 活跃的tDCS增强了执行功能,提高了任务准确性和反应时间,增加了前叶皮层激活.
- 意想不到的是,活跃的tDCS在注意力负载较低的情况下增加了杏仁体反应,增加了焦虑强化的惊反应 (APS).
- 与假设相反,活性tDCS的焦虑评级也略有增加.
结论:
- tDCS在焦虑抑郁症患者中显示出增强执行功能和认知参与的潜力.
- 该研究没有发现证据表明tDCS可以像假设的那样降低威胁灵敏度.
- 优化tDCS疗效可能需要情境干预或协同方法来治疗焦虑抑郁症.
相关概念视频
01:18Anxiety: Overview
879
Anxiety is a common mental disorder featuring excessive worry, fear, and apprehension, significantly affecting daily life. People with anxiety disorders experience persistent and intense anxiety, interrupting their everyday functioning.
Individuals with anxiety often experience a range of physical and emotional symptoms, including sweating, trembling, tachycardia, and disturbances in sleep patterns. These symptoms vary in intensity and frequency but are generally disruptive and distressing.
Individuals with anxiety often experience a range of physical and emotional symptoms, including sweating, trembling, tachycardia, and disturbances in sleep patterns. These symptoms vary in intensity and frequency but are generally disruptive and distressing.
879
01:30Generalized Anxiety Disorder
615
Generalized Anxiety Disorder (GAD) is a chronic condition characterized by excessive and uncontrollable worry that persists for at least six months, significantly interfering with daily functioning. Unlike situational anxiety, which arises in response to specific stressors, GAD often occurs without a clear cause. Individuals may experience disproportionate worry about work, health, or relationships. For instance, a person might continuously fear poor health despite normal medical evaluations or...
615