Study on the central mechanism and prediction of efficacy of acupuncture in the treatment of chronic insomnia disorder

INTERVENTION: Acupuncture group:Acupuncture;waiting group:waiting treatment;Healthy volunteer group:None; CONDITION: chronic insomnia disorder PRIMARY OUTCOME: Pittsburgh sleep quality index; SECONDARY OUTCOME: Self‐rating Anxiety Scale;Montreal Cognitive Assessment;Hyperarousal scale;fatigue severity scale;Heart rate variablity;the insomnia severity index;Epworth sleepiness score;Self‐Rating Depression Scale; INCLUSION CRITERIA: 1. Gender unlimited, right‐handed; 2. Age: 18 years = age = 60 years; 3. Pittsburgh sleep quality inde X(PSQI) score > 7 and Montreal Cognitive Assessment (MoCA)=24; 4. Insomnia symptoms 3 times a week for more than 3 months: including difficulty falling asleep, not sleeping deep or waking early; Sleep disturbances cause clinically significant distress; 5. Not taking hypnotics and other psychotropic drugs within 2 weeks before enrollment; 6. Informed consent was signed by the patient himself or by his / her immediate family. Note: patients who meet each of the above criteria may be included in this study.