Effects of tACS Combined With CCT for Patients With MCI

Mild Cognitive Impairment Clinical Trial

Official title: Effects of Transcranial Alternating Current Stimulation(tACS) Combined With Computerized Cognitive Training for Patients With Mild Cognitive Impairment(MCI)

Status Enrolling by invitation

Clinical Trial Summary

This goal of this study is to explore the effects of transcranial alternating current stimulation(tACS) combined with computerized cognitive training(CCT) on improving cognition for patients with mild cognitive impairment(MCI). The study will recruit 195 patients with MCI. Participants will undergo baseline cognitve assessment, EEG and structural and functional MRI. Participants will be randomized to active tACS+CCT group, sham tACS+CCT group and active tACS+sham CCT group. At the end of the intervention, 3-month, 6-month and 12-month follow-up, all subjects will repeat the baseline assessments.

Clinical Trial Description

tACS is a non-invasive brain stimulation technique that uses a low-intensity alternating current (1 to 2 mA) to apply a sinusoidal current to the scalp, directly interacting with the oscillating cortical activity at a given frequency with a given stimulus intensity. Studies have shown that simultaneous tACS on the left prefrontal lobe and left temporal lobe can significantly improve working memory in healthy older adults. The 40 Hz tACS is gamma oscillation, and more and more studies have pointed out that gamma oscillation regulation disorder is associated with impaired working memory function.CCT can improve the cognition in patients with MCI. We hypothesized that tACS combined with CCT can produce synergistic effects in sensitive brain areas. ;

Related Conditions & MeSH terms

• Cognitive Dysfunction
• Mild Cognitive Impairment

• NCT number: NCT04135742
• Study type: Interventional
• Source: Shanghai Mental Health Center
• Status: Enrolling by invitation
• Phase: N/A
• Start date: November 11, 2019
• Completion date: December 30, 2023