Much of the brain's visual processing can change dynamically
with changes in environment. For example, a common experiment in
college psych courses is to give a student glasses that flip the
world upside-down. It takes a few days for the student's brain
to adapt to the new inputs, and then they see the world normally
(and revert after a few days w/o the glasses). Patients with
macular degeneration can wear glasses that stretch-map the
visual input around areas of missing vision (in the manner of a
cylindrical mirror). After some time, they report seeing the
world normally - their visual system has adapted and remapped
the input. I wonder if the effect simply measures the amount of
reading the subject does; in other terms, perhaps it's just
measuring the amount of fine-focus eye training? What does the
test show for people who play a lot of arcade games (shooters,
especially ones that throw a lot of targets at you)? Or people
who use a lot of visual perception in their daily lives? The
article stated that the