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Restructuring the Alpha-Gamma Code in Aging Vision

StatusRecruiting
PhaseEarly Phase 1
Started
View on ClinicalTrials.gov ↗

Record History

  1. Trial status: Not Yet Recruiting to Recruiting
    • Study sites: 0 to 1
    • Start date changed from estimate of Jan 10, 2026 to Apr 2, 2026
    v2
  2. Study First Submitted
  • Stopped: an ongoing trial was terminated, suspended or withdrawn.
  • Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
  • Minor: routine progress and housekeeping, such as sites added or enrollment closed.
Tests whether age-related visual deficits arise from disrupted alpha-gamma coupling in visual cortex (V1) and MT. Uses fMRI, source-resolved HD-EEG, and personalized complex-waveform HD-tACS to (1) quantify aging effects on phase-amplitude coupling, (2) drive PAC into a preferred "gamma-at-alpha-troughs" state, and (3) bidirectionally change perception by aligning gamma to alpha troughs vs peaks. Two five-day, double-blind, sham-controlled studies (n=120 each) target contrast sensitivity (V1) and 3D shape-from-motion (MT), aiming for mechanistic insight and remediation in older adults with implications for ADRD.
Trial Details
NCT Number NCT07208318
Lead Sponsor Boston University Charles River Campus
Conditions
(from sponsor)		 Aging, Visual Perception, Noninvasive Brain Stimulation
Enrollment 240 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov