Our visual memory system has a phenomenally large capacity. Flick through the image gallery on your phone, or fast forward through a previously watched movie, and notice how the briefly presented images trigger memories with little or no effort on your part. Well, my colleagues and I have harnessed this passive visual memory system to develop a test that might one day be used to diagnose Alzheimer’s disease.
The person being tested is fitted with an electroencephalography (EEG) cap to record their brain activity and shown a series of images of everyday objects on a…
