Ebinger P
Anat Embryol (Berl). 1975 May 16;146(3):313-23. doi: 10.1007/BF00302177.
A cytoarchitectonic subdivision into visual structures and neocortical grey and white matter has been made from frontal serial sections of brains of mouflons (Ovis ammon musimon) and domestic sheep (Ovis ammon f. aries). The reduction rates determined for the volumes of the brain areas are calculated by means of intraspecific allometric methods. The overall decrease of visual brain structures in domestic sheep compared with wild sheep amounts to 25.9%, The greatest reduction is found in the striate area (30.2%), followed by the lateral geniculate body (25.4%), the optic tract (20.6%) and finally the superior colliculus (12.1%). The neocortex as a whole decreases in sheep under domestication by 26.4% in volume. The reduction rate of neocortical grey matter amounts to 24.9%, that of the white matter to 28.9%. The changes of brain size in domestic sheep may be functionally correlated to changes of the environmental conditions which are due to domestication.
通过对摩弗伦羊（欧洲盘羊摩弗伦亚种）和家羊（欧洲盘羊指名亚种）大脑额叶连续切片进行细胞构筑学细分，划分出视觉结构以及新皮质灰质和白质。利用种内异速生长法计算脑区体积的缩减率。与野生羊相比，家羊视觉脑结构的总体减少量达25.9%。最大降幅出现在纹状区（30.2%），其次是外侧膝状体（25.4%）、视束（20.6%），最后是上丘（12.1%）。在驯化过程中，家羊的新皮质总体积减少了26.4%。新皮质灰质的缩减率为24.9%，白质的缩减率为28.9%。家羊大脑大小的变化可能在功能上与驯化导致的环境条件变化相关。
