A dark core sits at the center of the play area. Red threats appear at random edges and drift toward the core. Tap threats to destroy them. Green friends pass through unharmed — leave them alone. Three threats reach the core and the run ends.
The Science: A distributed-attention paradigm, cousin to the Useful Field of View test used to assess elderly drivers’ safety (Ball & Owsley, 1993). Peripheral awareness declines faster with age than central acuity does.
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