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
Brain types pseudoscience. What separates Brain typing from Jungian typology and its offshoots, such as the Myers–Briggs Type Indicator (MBTI) and Socionics, is its emphasis on motor skills. Each of the sixteen brain types is said to specialize in certain regions of the brain responsible for varying degrees of mental and motor skills. Niednagel believes the types are inherited, possessing a genetic basis. The brain types website and books also explain how it differs from the Myers-Briggs Type Indicator in that it believes the ENTP/FCIR type is by far the most common of the sixteen types, whereas some other types presumed as