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一、前言颅内模(endocast)是指填充整个颅骨内部空腔获得的颅腔铸型,包括天然形成的“化石脑”、人工复原(石膏等填充)以及经过CT技术复原的颅内模[1]。通过对颅内模的观察、测量分析,间接地反映了脑的表面形态特征、脑量等信息,颅内模因此成为分析和探讨人类脑进化的重要研究材料。通过对颅内模的大体形态观察,古人类学家探索了人类进化过程中脑的演化历程:脑量的大小随地质时代变化存在增加的趋势[2],随着脑量的增大,额叶趋向圆隆、增
I. INTRODUCTION Endocast refers to the cranial cavity mold that is obtained by filling the entire internal cavity of the skull, including the naturally occurring “fossil brain”, artificial restoration (filling of gypsum, etc.) and intracranial mold recovered by CT technique [1]. Through the observation and measurement of intracranial modules, it indirectly reflects the morphological features and brain volume of the brain. Therefore, the intracranial model has become an important research material for analyzing and exploring the evolution of human brain. By observing the gross morphology of intracranial modules, ancient anthropologists have explored the evolution of the brain during human evolution: the size of the brain tends to increase with changes in the geologic age [2]. As the amount of brain increases, Leaf tends to round, increase