Introverts and extroverts differ in their nervous system responses to external stimulation. Three things reveal why: (1) our neurotransmitters, (2) whether we rely more on the sympathetic or parasympathetic nervous system, and (3) our brain pathways. Neurotransmitters are chemical messengers that help shape our responses and behavior. The neurotransmitters dopamine and acetylcholine play a significant role in the differences between introverts and extroverts. Think of dopamine like
Page 19