Individual Closed-Loop Neuromodulation Therapy for Alzheimer's Disease

Summary

The project is a placebo-controlled study that aims to use closed-loop transcranial alternating current stimulation (tACS) to study patients with symptoms of mild cognitive impairment which is likely due to Alzheimer's disease or another form of dementia (AD-MCI). Patients will undergo an EEG and complete some questionnaires and computer tasks during each study visit. The project has the following aims and hypotheses: 1.) To determine the impact of closed-loop 40 Hz tACS on the entrainment of natural gamma rhythms in patients with AD-MCI, 2.) To determine the impact of closed-loop 40 Hz tACS on cognitive performance in patients with AD-MCI, and 3.) To assess the relationship between baseline neurodegenerative burden and impact of tACS. \[exploratory\]

Eligibility

Age range

50–80 years

Sex

All

Healthy volunteers

Yes

Interventions

• Device
  tACS device

  you will receive one of four treatment conditions that include active and sham tACS. The four conditions are the following: (1) closed-loop-tACS (peak-locked), (2) closed-loop-tACS (trough-locked), (3) open-loop tACS, and (4) sham tACS. Although each subject will undergo all four treatments in four separate study visits, the order of the treatments will be randomized

Location