Abstract
Background:Chronic insomnia (CI) can lead to cognitive dysfunction and bring great pain to patients’ life. There is no effective intervention for cognitive dysfunction caused by CI. Shenmen (HT7) is the first choice for insomnia treatment. However, the effect and mechanism of this acupoint on cognitive function after insomnia is not clear. Therefore, the purpose of this study is to explore whether magnetic stimulation of HT7 can improve cognitive impairment of CI by regulating prefrontal lobe and its mechanism.Methods/Design:This is a randomized controlled clinical trial. Seventy-two subjects aged 18 to 65 years old with primary insomnia and more than 3 months were randomly divided into 2 groups according to the ratio of 1:1, and 36 healthy controls were included. The control group was given sleep hygiene and cognitive therapy in behavioral cognitive therapy technology, while the experimental group was given the behavioral cognitive therapy technology intervention and magnetic stimulation of HT7 acupoint for 30 times (2 times / d, 5 times / wk for 20 days), while the healthy control group had no intervention measures. Before treatment and 20 days after treatment, we evaluated the working memory (1-back test), episodic memory (Complex Figure Test), and problem-solving ability (Hanoi tower test) processed by prefrontal lobe to explore the effect of magnetic stimulation on cognitive function of CI and its possible mechanism. At the same time, insomnia severity index was used to evaluate sleep state, Becker depression scale was used to evaluate depression, and Beck anxiety scale was used to evaluate anxiety. Chi-squared test or rank sum test was used to collect the data of patients. If P value is less than or equal to .05, the difference will be considered statistically significant.Conclusion:This study explored the effect and mechanism of magnetic stimulation of Shenmen (HT7) on cognitive function of CI, and confirmed that magnetic stimulation of HT7 can be used as an alternative therapy to improve cognitive impairment of CI.Trial Registration number:ChiCTR2000034280
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