The definitions given in the article are the ones I would give; see e.g. https://en.wikipedia.org/wiki/Extraversion_and_introversion#Extraversion https://en.wik

The definitions given in the article are the ones I would give; see e.g. https://en.wikipedia.org/wiki/Extraversion_and_introversion#Extraversion https://en.wikipedia.org/wiki/Extraversion_and_introversion#... I'm not familiar with the theory that only introverts have an "internal model" that needs updating. I would think we all run on models at various levels of cognition (given that the brain doesn't contain any actual "external world" in it, only models), which we update both in real-time and in later processing (such as while sleeping).