抄録
Eighty years have passed since Scammon proposed the growth curve and even today it continues to be used in various fields. That is because it is an advantageous theory for explaining growth phenomena. However, there has been little verification of Scammon's growth curve over these 80 years. It is also true, of course, that no methodology for verification of this theory has been established. The reason is thought to be that best methods for describing the growth curves of various physical attributes and deriving velocity curves have not been established. This study attempted to verify Scammon's growth curve using the wavelet interpolation model proposed by Fujii. First, the four growth curve patterns from Scammon's original paper were confirmed. An examination was then made of how the four growth patterns are related to growth phenomena. At the same time the wavelet interpolation model was applied to investigate the reliability of these growth curves. The use of a cross-correlation function was also proposed to verify the similarities and differences in growth curves, and the similarities and differences of Scammon's four growth curve patterns were investigated. Differences were seen in neural, lymphoid, and genital (general) types, but conversely a very close similarity existed between the genital and general types. Based on these findings a new growth model is proposed, divided into three types: neural type, lymphoid type, and general type, with the general type consisting of a genital type, visceral type, and morphological type.
