Final answer:
People whose psychic energy is directed inward are termed introverts, an idea proposed by Carl Jung that's essential in personality psychology. Introverts draw energy from internal psychic activities, while extroverts gain energy from social interactions.
Step-by-step explanation:
People whose psychic energy tends to 'flow inward' toward their own thoughts and inner states are known as introverted types. This concept was introduced by Carl Jung and is a central aspect of personality psychology. Introverts may appear quiet and reserved, or they might be social yet still draw their energy from within. Extroverts, on the other hand, are energized by external interactions and are typically more outgoing and sociable.
Jung believed that a balance between introversion and extroversion is beneficial for self-realization. Personality models, including the Myers-Briggs Type Indicator, have since integrated these concepts, demonstrating their significant influence on the field of psychology. The differences in personality can impact our behaviors in various aspects, including how individuals react to stress as outlined by the trait of neuroticism versus stability.