Researchers at MIT (Massachusetts Institute of Technology) led by Dr. Li Huei Tsai and Dr. Ed Boyden recently published their research in the Journal Nature titled Gamma frequency entrainment attenuates amyloid load and modifies microglia.
They discovered that the flickering light caused brain cells in the animals’ visual cortex to oscillate together. This resulted in the creation of Gamma waves that seemed to boost the cells that clear beta-amyloid plaques, decreasing the production of beta-amyloid plaques in the process.
This exciting discovery does not mean that they've found a cure for Alzheimer’s. After all, the effect on the reduction of beta-amyloid plaques and tau tangles was noted in the cells in the animals’ visual cortex, not the memory areas that Alzheimer's damages first. Also the mechanism by which this occurs is still unknown.