“(CNN)Just a few minutes of playing a certain video game could help identify the earliest stages of Alzheimer’s in ways existing medical tests can’t, researchers have found.

A new study used a smartphone app called Sea Hero Quest to monitor how gamers with and without a genetic predisposition to Alzheimer’s navigate the virtual world, using their thumbs to move a little boat through a series of maritime mazes.
This type of test was key because “spatial navigation is emerging as a critical factor in identifying preclinical Alzheimer’s disease,” authors of the study, just published in the Proceedings of the National Academy of Sciences, said.”
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