quiet-the-power-of-introverts-in-a-world-that-cant-stop-talking-susan-cain

personality psychologist David Funder
calls “half-right”—in very important
ways. Whatever the underlying cause,
there’s a host of evidence that introverts
are more sensitive than extroverts
to various kinds of stimulation, from
coffee to a loud bang to the dull roar of
a networking event—and that introverts
and extroverts often need very
different levels of stimulation to function
at their best.
In one well-known experiment, dating
all the way back to 1967 and still a
favorite in-class demonstration in psychology
courses, Eysenck placed lemon
juice on the tongues of adult introverts
and extroverts to find out who salivated
more. Sure enough, the introverts, being
more aroused by sensory stimuli,
were the ones with the watery mouths.
In another famous study, introverts
and extroverts were asked to play a
359/929