This io9 article outlines some of the many ways that scientific research has shown the differences between introverts and extroverts.

For example:

  • Extroverts tend to focus attention outward, on sensory phenomena. Introverts tend to focus inwards, on memory, planning, and problem-solving
  • Compared to extroverts, introverts devote more mental resources to scanning and processing external stimuli
  • Compared to extroverts, introverts have a higher baseline level of arousal
  • Extroverts process greater pleasure/motivation from the environment while introverts process greater pleasure/motivation from internal cues
  • Compared to introverts, extroverts are more tuned in to people’s faces
  • Introverts tend to use more concrete language, while extroverts tend to be more general
  • Compared to introverts, extroverts tend to be more ‘sensation-seeking’, which can sometimes lead to greater risk-taking behaviour.
  • Compared to introverts, extroverts wear more eye-catching outfits
  • Compared to introverts, extroverts opt for immediate over delayed gratification
  • Compared to introverts, extroverts are generally happier – possibly because they are more social, or because they are more sensitive to social rewards, or because they are better able to regulate mood. Alternatively, they may simply be more inclined to express happiness.

Read the whole article here: