A decade of GENUS
Beginning with their initial discovery in 2016, MIT researchers led by Picower Professor Li-Huei Tsai have published 13 papers examining 40 Hz sensory stimulation as a potential therapeutic for Alzheimer’s disease and other neurological conditions. Below are links to each paper and, where applicable, their accompanying news story.
December 2016: Nature
- Unique visual stimulation may be new treatment for Alzheimer’s
- Gamma frequency entrainment attenuates amyloid load and modifies microglia
August 2018: Nature Protocols
March 2019: Cell
- Brain wave stimulation may improve Alzheimer’s symptoms
- Multi-sensory Gamma Stimulation Ameliorates Alzheimer’s-Associated Pathology and Improves Cognition
May 2019: Neuron
- Why visual stimulation may work against Alzheimer’s
- Gamma Entrainment Binds Higher-Order Brain Regions and Offers Neuroprotection
December 2022: PLOS ONE
- Small studies of 40Hz sensory stimulation confirm safety, suggest Alzheimer’s benefits
- Gamma frequency sensory stimulation in mild probable Alzheimer’s dementia patients: Results of feasibility and pilot studies
May 2023: Frontiers in Aging Neuroscience
- 40 Hz vibrations reduce Alzheimer’s pathology, symptoms in mouse models
- Vibrotactile stimulation at gamma frequency mitigates pathology related to neurodegeneration and improves motor function
December 2023: Journal of Internal Medicine (review)
- Evidence early, but emerging, that gamma rhythm stimulation can treat neurological disorders
- Audiovisual gamma stimulation for the treatment of neurodegeneration
February 2024: Nature
- How sensory gamma rhythm stimulation clears amyloid in Alzheimer’s mice
- Multisensory gamma stimulation promotes glymphatic clearance of amyloid
March 2024: Science Translational Medicine
- A noninvasive treatment for “chemo brain”
- Gamma entrainment using audiovisual stimuli alleviates chemobrain pathology and cognitive impairment induced by chemotherapy in mice
August 2024: Nature Communications
- Study reveals ways in which 40Hz sensory stimulation may preserve brain’s ‘white matter’
- Multisensory gamma stimulation mitigates the effects of demyelination induced by cuprizone in male mice
March 2025: PLOS BIology (review)
- Review: Evidence expanding that 40Hz gamma stimulation promotes brain health
- Innovations in noninvasive sensory stimulation treatments to combat Alzheimer’s disease
April 2025: PLOS ONE
- In Down syndrome mice, 40Hz light and sound improve cognition, neurogenesis, connectivity
- Multisensory gamma stimulation enhances adult neurogenesis and improves cognitive function in male mice with Down Syndrome
October 2025: Alzheimer's & Dementia: The Journal of the Alzheimer’s Association
- Small study suggests 40Hz sensory stimulation may benefit some Alzheimer’s patients for years
- Gamma sensory stimulation in mild Alzheimer's dementia: An open-label extension study
Image at top: Images from the May 2019 Neuron paper provide a comparison between the brain of an untreated Alzheimer's model mouse (left) and the brain of an Alzheimer's model mouse that received several weeks of 40Hz light flicker (right). Notice the enlarged ventricles in the left image, a sign of severe neuron loss.