Highlights of mice studies include: 

40-50% reduction in hardened amyloid plaque in the visual cortex using Gamma flicker with light 

30-40% reduction of plaque in the audio cortex after 1- 2 weeks of daily 1 hour sessions 

Combined 40hz Gamma light with 40hz sound flicker showed activation across the brain, beyond just the visual and auditory cortex

Researchers surprised to see repair and rebuilding of damaged neuronal circuitry