<研究報告>肋骨直長と頭蓋最大長の間の強い共変動 : 短頭化現象問題の解決に向けて

概要

論文の詳細を見る
Using principal component analysis (PCA) and Kaiser's normal varimax rotation method, the relations of three main neurocranial measurements with those of the sternum and ribs were examined as a step toward finding the causes of brachy cephalization. In result, the data of females showed that the principal component or rotated factor significantly correlated with cranial length was also correlated with the costal chords of at least the first to the seventh rib. This suggests that the anteroposterior diameter of the thorax may be associated with the formation of the cranial structure. It remains to be solved, however, whether these correlations are biomechanically caused by the posture of the body or produced by the pleiotropic genes which were rigidly fixed in our ancestral population in considerably ancient times.
国立科学博物館の論文