台湾 Bunun 族における頭・顔面部の成長変化に伴う形質的特徴
スポンサーリンク
概要
- 論文の詳細を見る
A series of field work was undertaken in the Bunun tribe of Taiwan aborigines to research on growth of their head and face. The subjects consisted of 415 males and 385 females, 6 to 18 years of age, living in Hsin-i of Nantou, in Taiwan. Sex difference with growth, relationships to the growth of stature and comparison with the Atayal tribe at the same period were examined on the basis of the averages obtained from the measurements of the head and face. The results were as follows : 1. The process of size classification (by Martin and Saller : 1957) in growth proceeded in females faster than in males for head length, head breadth, bizygomatic breadth and morphological facial height. 2. As to cephalic index, length height index, breadth height index and morphological facial index, tendencies were shown toward dolichocephalic, hypsicephalic or acrocephalic types in the head region and to become leptoprosopic type for males or to maintain euryprosopic type for females in the facial region. 3. Growth pattern (by Scammon, R.E. : 1930) as viewed from ratio of mean values in 6 year-old to 18 year-old subjects for head, face and stature showed closely "neural type" for growth rate of head length or head breadth and "general type" for that of head height, morphological facial height, bizygomatic breadth and bigonial breadth. 4. The peak of adolescent growh spurt was recognized in 12 to 14 year-old males and in 10 to 12 year-old females. It occurred to those stages when the head and facial growth had the maximum puberal growth spurt about one or two years after the spurt in stature. After adolescent growth, the clear stage of sex difference was seen in 13 to 14 year-old subjects. 5. In comparison of the head and facial growth between the Bunun and the Atayal tribe, the Bunun tribe showed a greater tendency to maintain brachycephalic, hypsicephalic, acrocephalic and euryprosopic types.
- 1988-10-25