Flickering Light Stimulation (FLS)—especially at gamma frequencies (~40 Hz)—has gained attention in recent years as a non-invasive potential therapy for Alzheimer's disease (AD).
- Gamma oscillations are important for cognition, memory, and attention—and are impaired in AD
- Effects in animal models: ↓ Amyloid plaques, ↑ cognition, ↑ microglial activity
- In Cognito Therapeutics' trials, participants use a wearable device (like glasses) that delivers flickering light and sound simultaneously, with eyes open.