How We See Black and White
Vision is amazing because it seems so mundane. Peoples’ eyes, nerves and brains translate light into electrochemical signals and then into an
experience of the world around them. A close look at the physics of just
the first part of this process shows that even seemingly simple tasks,
like keeping a stable perception of an object’s color in different
lighting conditions or distinguishing black and white objects, is, in
fact, very challenging.
University of Pennsylvania psychologists,
by way of a novel experiment, have now provided new insight into how
the brain tackles this problem.
Produced by Kurtis Sensenig