Introverted intuition (Ni) is a term from Carl Jung's theory of personality types, which later influenced the Myers-Briggs Type Indicator (MBTI) and other personality assessments. Ni is a cognitive function that involves processing the world through a lens of internal thoughts, symbols, and unconscious processes, often involving speculation about the future or deep reflection on abstract concepts.
It's important to note, however, that not all introverts necessarily have a strong connection to introverted intuition. Introversion and extraversion in the Jungian sense are broader categories that refer to how individuals gather energy (from the inner or outer world), whereas the cognitive functions (like Ni, Ne, Ti, Te, etc.) describe more specific ways individuals process information and interact with the world.
In the Myers-Briggs system, only two of the sixteen types have dominant Ni: INTJ (Introverted, Intuitive, Thinking, Judging) and INFJ (Introverted, Intuitive, Feeling, Judging). However, two extroverted types, ENTJ (Extraverted, Intuitive, Thinking, Judging) and ENFJ (Extraverted, Intuitive, Feeling, Judging) have Ni as their auxiliary (secondary) function.
That said, having Ni as a dominant or auxiliary function doesn't mean these individuals are necessarily more intuitive in the common understanding of the term, meaning having a gut feeling or an instinct about something. It's more about having a deep, abstract understanding of how different concepts and events are interconnected and can unfold over time.
So, while some introverts may have a strong connection to their introverted intuition, it's not a universal characteristic of all introverts.