transcranial current stimulation: consecutive daily 20-min, 1.1-mA sessions
Sham stimulation: only wore the device and had no stimulation
Study summary
Effect of transcranial current stimulation on insomnia disorder
Eligibility
Sex
ALL
Min age
18 Years
Max age
75 Years
Healthy volunteers
Accepted
Inclusion Criteria:
* Clinical diagnosis of insomnia disorder
* Cooperate to complete the questionnaire surveys
Exclusion Criteria:
* Presence of mental disorders
* Current use of central nervous system stimulants
* Use of analgesics,sedatives or hypnotic medications, theophylline preparations, steroid medications
* Alcohol abuse or regular alcohol consumption
* Diagnosis of other sleep disorders, including obstructive sleep apnea, rapid eye movement sleep behavior disorder, or restless legs syndrome
* Sleep disorders secondary to organic diseases, such as epilepsy, diabetes, or renal failure
* Shift work or irregular work schedules that disrupt normal circadian rhythms
* Use of medications affecting central nervous system function within the past one month
* Recent sleep-related confounding behaviors within the past two weeks, including staying up late, alcohol consumption, or smoking
* Presence of organic brain lesions on head MRI and contraindications to MRI examination
Primary outcome measure(s)
Change in global blood-oxygen-level-dependent (gBOLD) signal amplitude — 2 weeks and 3 months The amplitude of the global blood-oxygen-level-dependent (gBOLD) signal was derived from resting-state functional MRI and reflects the overall magnitude of spontaneous brain activity. Unit of Measure: Z-score
Change in resting-state functional connectivity strength — 2 weeks and 3 months Resting-state functional connectivity strength was calculated as the correlation coefficient between predefined brain regions based on functional magnetic resonance imaging data.
Change in amplitude of low-frequency fluctuations — 2 weeks and 3 months Amplitude of low-frequency fluctuations was calculated from resting-state fMRI to quantify spontaneous neural activity.
Change in regional homogeneity — 2 weeks and 3 months Regional homogeneity was used to assess the synchronization of local spontaneous brain activity
Change in phase difference of dynamic cerebral autoregulation — 2 weeks and 3 months Dynamic cerebral autoregulation was assessed using the phase difference between cerebral blood flow velocity and arterial blood pressure fluctuations. Larger phase differences indicate better autoregulatory function.
Change in gain of dynamic cerebral autoregulation — 2 weeks and 3 months Gain represents the magnitude of cerebral blood flow velocity changes in response to blood pressure fluctuations, with lower gain values indicating more effective autoregulation.
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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