Vowel whose quality does not change over the duration of the vowel is called a monophthong. Monophthongs are sometimes called "pure" or "stable" vowels. A vowel sound that glides from one quality to another is called a diphthong, and a vowel sound that glides successively through three qualities is a triphthong. All languages have monophthongs and many languages have diphthongs, but triphthongs or vowel sounds with even more target qualities are relatively rare cross-linguistically. English has all three types: the vowel sound in "hit" is a monophthong , the vowel sound in "boy" is in most dialects a diphthong , and
Psychological Types talking the Adlerian dialect, in another the Freudian (Jung, [1961] 1989:131). Psychological Types Psychological Types is Volume 6 in the Princeton / Bollingen edition of "The Collected Works of C. G. Jung". It was also published in the U.K. by Routledge. The original German language edition, "Psychologische Typen", was first published by Rascher Verlag, Zurich in 1921. Extensive detailed abstracts of each chapter are available online. In the book Jung categorized people into primary types of . He proposed four main functions of consciousness: The functions are modified by two main attitude types: extraversion and introversion. Jung theorized that the