New 3-minute brain test detects early Alzheimer's signs at home using EEG

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A new brainwave test could detect early signs of Alzheimer’s years before diagnosis — in just three minutes.

That’s according to researchers at the University of Bath and the University of Bristol, who recently tested the new technology — called Fastball EEG — in patients’ homes.

The three-minute test records electrical activity in the brain as the person looks at a series of images. It is designed to pick up on signs of mild cognitive impairment (MCI), which often precedes Alzheimer’s.

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Because Fastball is a "passive" EEG test, it automatically picks up on the brain’s responses without requiring the participants to answer questions or recall information