Liubimova Z V
Biull Eksp Biol Med. 1985 Jul;100(7):116-7.
The structural and functional formation of tongue tactile sensory formations were correlated in infants. Heterochronicity was recorded both in build up of receptor formations in different areas of the tongue (tip, body, root) and sensory control of its movements related to sound formation. Receptor formations of the root of the tongue are formed first of all, hence the first sounds that are uttered by infants are primarily velar ones, followed by the appearance of the medio-lingual and later by dorsal sounds.
婴儿舌头触觉感觉结构的结构和功能形成是相互关联的。在舌头不同区域（舌尖、舌体、舌根）的感受器结构发育以及与发声相关的舌头运动的感觉控制方面都记录到了异时性。首先形成的是舌根的感受器结构，因此婴儿发出的第一个声音主要是软腭音，随后是中舌音出现，再后来是舌背音。
