Shedding Light on Alzheimer’s Disease

R&D DIGEST

Near-infrared light is being harnessed to detect signs of Alzheimer's disease. Microscopic changes to the optical properties of the brain are hallmarks of the disease. These alterations often occur far in advance of clinical symptoms. The technique measures light as it passes through the brain.

Near-infrared light can safely penetrate the skull and pass harmlessly through the brain. Analysis of how the infrared light scatters provides data on the condition of the brain.

Researchers from Harvard Medical School, Beth Israel Deaconess Medical Center, and Boston University are testing the method to diagnose Alzheimer's disease in living people.

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