Simmons R M
S Afr J Med Sci. 1976;41(2):109-38.
The diencephalon of the vervet monkey (Cercopithecus aethiops) is described and compared with that of other primates, particularly the macaque monkey (Macaca mulatta). In the vervet monkey, the thalamus is divided into six nuclear groups: anterior, midline, medial, dorsolateral, ventrolateral and posterior. The anterior nuclear group shows a regressive nucleus anterodorsalis and a poorly defined demarcation between the nuclei anteromedialis and anteroventralis. There is a large interthalamic adhesion in which the ventral region containing nuclei centralis medialis, interventralis and reuniens, shows more regression than the dorsal region consisting of nuclei parataenialis and paraventralis. As the nucleus medialis ventralis is not present, the nucleus medialis dorsalis is described as the nucleus medialis; this is clearly differentiated into three parts, each part showing different cytological and architectonic features. The nucleus centrum medianum is larger and better developed than that of lower primates but is not entirely demarcated from the nucleus parafascicularis. The pulvinar is an enormous outgrowth from the dorsolateral thalamic nuclei. The ventrolateral thalamic nuclei are well differentiated from one another: a distinct nucleus ventralis dorsomedialis is present and appears to possess definite topographical and cytological differences from those of the other ventrolateral nuclei. The nucleus ventralis posteromedialis is further differentiated into a magno- and a parvocellular part. The nucleus ventralis posteroinferioris is a distinct entity. The lateral geniculate body shows a definite differentiation into two nuclei: pregeniculate and lateral geniculate nuclei. The lateral geniculate nucleus is a six-layered structure which is of the inverted type; it has undergone a lateral rotation through an anteroposterior axis from a dorsal position in the prosimian thalamus to its present ventral position in the higher primate thalamus. The medial geniculate body is not laminated as is the lateral geniculate nucleus; it consists of a small dorsomedial magnocellular and a large ventrolateral parvocellular part.
描述了绿猴（长尾黑颚猴）的间脑，并将其与其他灵长类动物，特别是猕猴的间脑进行了比较。在绿猴中，丘脑分为六个核群：前核群、中线核群、内侧核群、背外侧核群、腹外侧核群和后核群。前核群有一个退行性的背前核，前内侧核和前腹侧核之间的界限不清晰。有一个大的丘脑间粘连，其中包含中央内侧核、腹间核和连合核的腹侧区域，比由旁缰核和腹旁核组成的背侧区域退化更明显。由于腹内侧核不存在，背内侧核被描述为内侧核；它明显分为三个部分，每个部分表现出不同的细胞学和构筑学特征。中央中核比低等灵长类动物的更大且发育更好，但与束旁核并未完全分界。枕核是背外侧丘脑核的一个巨大突出部分。腹外侧丘脑核彼此之间分化良好：存在一个明显的背内侧腹侧核，它在地形和细胞学上似乎与其他腹外侧核存在明确差异。后内侧腹侧核进一步分为大细胞部和小细胞部。后下腹侧核是一个独立的实体。外侧膝状体明显分为两个核：膝前核和外侧膝状体核。外侧膝状体核是一个六层的倒置结构；它已经从原猴丘脑的背侧位置绕前后轴进行了侧向旋转，到高等灵长类动物丘脑目前的腹侧位置。内侧膝状体不像外侧膝状体核那样分层；它由一个小的背内侧大细胞部和一个大的腹外侧小细胞部组成。
