Question

One classic study found that, when tasting lemon juice, ________ people salivated more than ________ people.

Answer 1

Introverted people salivated more than extroverted people. This is because they found the lemon more stimulating than the extroverts did. The reason for this is because they have a higher level of responsiveness to stress hormones, and get excited more easily, which leads to their need for solitude.