Turkey Turkish dialects o>u, u>o changes

No change in language is without cause. There are many reasons for sound changes that are not related to either the phonetic environment or the phonetic environment. Many studies have been conducted in the laboratory environment to reveal the reasons for O>U, U>O changes in world languages. As a result of these studies, some vowel change models dealing with vowel changes have been developed. There are two reasons for O> U, U> O changes in world languages: "Social network effect" and "vowel change models". While the social network effect in language defends that O> U, U> O changes develop independently of the phonetic environment, vowel change models express that O> U, U> O changes develop depending on the phonetic environment. There are two reasons for the O> U, U> O changes in Turkish: O> U, U> O changes due to the phonetic environment, O> U, U> O changes that do not depend on the phonetic environment. O> U, U> O changes that do not depend on the phonetic environment in Turkish show a characteristic feature because they occur depending on the vowel structure of Turkish. For this reason, the only use of words with either / O / or / U / is seen. Consonants play an important role in O> U changes due to the phonetic environment. While some consonants are choked in Turkish, they articulation the vocal path. It is seen that large vowels have an effect on U> O changes due to the phonetic environment. In vowel change patterns, the formation lines of vowels / a, e / sounds sometimes attract the / u, ü / sounds to their place of articulation. It is seen that words have dual usage in changes that do not depend on the phonetic environment.