If you're up all night before a big
exam, or if you sleep all day before getting up to go to a big event, can your
doctor tell? Sometimes the brain makes
mistakes, be it because of it sleep deprivation, lack of interest, or bad
concentration. Sometimes we space out,
daydream, fall into a zone other than the hard-at-work zone. These space-outs cause visible effects --
just look at the papers we forgot to file, the typo we could have avoided, the
kid we should've picked up after school.
Aside from the visible, though, how else can we tell when the brain is
doing something wrong or something outside of the ordinary?