Carl Jung:Swiss psychiatrist who inspired the work of Myers & Briggs with his theory of psychological types - essentially he laid down the foundation for their 'house'.
Cognitive Functions:Basic mental processes that Carl Jung believed were part of everyone's cognitive experience - think about these as the plumbing or electrical wiring within our 'personality house'.
Introversion/Extraversion: Key dimensions in both Jung's theory and MBTI which describe how individuals focus their attention and gain energy - these could be seen as the 'windows' in our personality house, showing whether we look more often to the outside or inside world.