Ishida H, Dodo Y
Department of Anatomy, Sapporo Medical College, Japan.
Hum Biol. 1990 Jun;62(3):389-401.
Cranial vault thicknesses were measured directly with a spreading caliper at six anatomical reference points in the modern Japanese and Neolithic Jomon series. Because no statistically significant correlation was found between age and cranial thickness in our study, the age-related change in thickness was not indicated in the modern Japanese. The cranial thicknesses at the frontal and parietal eminences were significantly greater in the female than in the male in modern Japanese. In the male series the cranial thickness of the Neolithic Jomon was significantly greater than that of modern Japanese. It is suggested that the temporal change that has occurred in Japan during the last 2000 years is consistent with the trend toward decreasing cranial thickness during the last 10,000 years in many parts of the world.
在现代日本人以及新石器时代绳纹人样本中，使用游标卡尺直接测量了颅顶六个解剖学参考点的厚度。由于在我们的研究中未发现年龄与颅骨厚度之间存在统计学上的显著相关性，因此现代日本人中未显示出与年龄相关的厚度变化。在现代日本人中，女性额隆突和顶隆突处的颅骨厚度显著大于男性。在男性样本中，新石器时代绳纹人的颅骨厚度显著大于现代日本人。这表明在过去2000年里日本发生的时间变化与世界许多地区在过去10000年里颅骨厚度下降的趋势一致。
