调节长期COVID中的主观和客观认知状态疲劳与重复性阳道tDCS:来自双盲随机对照试验的结果
Magdalena Mischke1,2, Tino Zaehle3,4,5,6,7
1Departments of Neurology, Otto-von-Guericke University, Leipziger Straße 44, 39120, Magdeburg, Germany.
BMC neuroscience
|January 24, 2026
概括
跨直流刺激 (tDCS) 可能稳定尾阿尔法功率在长期COVID患者经历认知疲劳. 然而,在这项研究中,tDCS并没有显著改善主观疲劳或任务性能.
科学领域:
- 神经科学是一个神经科学.
- 神经调节是一种神经调节.
- 长时间的COVID研究
背景情况:
- 认知疲劳是长期COVID的主要症状,治疗方法有限.
- 阳横直流刺激 (tDCS) 针对背侧前额皮质 (dlPFC) 网络,可能缓解疲劳.
- 评估认知疲劳需要整合主观,行为和电生理学措施.
研究的目的:
- 为了研究阳节tDCS对长期COVID的认知状态疲劳的影响.
- 评估疲劳的主观,行为和电生理学标记.
- 确定tDCS在调节与疲劳相关的神经活动中的有效性.
主要方法:
- 这是一项双盲,随机化,模拟控制的研究,每天进行四次tDCS,在左 dlPFC 上进行.
- 参与者完成了主观疲劳评分 (视觉模拟尺度) 和行为任务 (Go/No-Go,AX-CPT).
- 电生理学标记包括正面的,尾的α活动,和p50感官门.
主要成果:
- tDCS没有显著改变主观疲劳评级或行为表现.
- Verum tDCS 显示了一种趋势,即尾阿尔法功率中与疲劳相关的变化趋于稳定.
- 在刺激后的Go/No-Go任务性能中没有观察到立即的改善.
结论:
- tDCS可能调节认知疲劳的神经生理方面,但在目前的协议中对主观经验和行为的影响有限.
- 神经生理学终点对于长期COVID的干预研究至关重要.
- 未来的研究需要更强大的协议,延长刺激和敏感措施来优化对认知疲劳的tDCS.
相关概念视频
02:07Blind Procedures
13.4K
Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which...
13.4K
01:11Blinding
3.8K
Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
3.8K
01:38Cognitive Dissonance
36.8K
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
36.8K
01:21Fatigue
812
Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
812
01:16Clinical Trials
10.2K
Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
There are four phases in a clinical trial. A phase one...
10.2K
01:11Clinical Trials: Overview
4.7K
Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
4.7K