Extroverted introverts are those who possess a combination of introversion and extroversion but lean toward extroversion.

Introversion is a highly heritable trait, which comes down from one or both parents. Extroverts have greater brain reward centers, meaning they get a bigger rush of dopamine from social interactions.

Doctor of psychology Perpetua Neo told Business Insider that in terms of their brain chemistry, introverts have a lower threshold of dopamine sensitivity than extroverts (dopamine is a chemical ...