Frahm H D, Zilles K
C. & O. Vogt Brain Research Institute, Heinrich Heine University, Düsseldorf, FRG.
J Hirnforsch. 1994;35(3):343-54.
Volumes of retrocommissural hippocampal regions (Subiculum, CA 1, CA 2, CA 3, hilus region, and fascia dentata) were measured using serial sections of 44 species of prosimian and simian brains, including man. The volumes were compared allometrically with those of the least encephalized eutherian mammals, the madagassian tenrecs (Insectivora, Tenrecinae; 4 species). The retrocommissural hippocampus is 2.9 times larger in prosimians, 2.4 times in non-human simians, and 4.1 times in man. The different hippocampal regions do not enlarge uniformly to the same degree as the total hippocampus. The regions can be grouped into three categories, according to the degrees to which they enlarge in primates: a) Structures with the greatest degree of enlargement are the subiculum and the field CA 1. b) An enlargement similar to that of the total retrocommissural hippocampus is seen for the hilus region. c) No or only a slight enlargement as compared to their sizes in tenrecs is observed for the hippocampal fields CA 2, CA 3, and the fascia dentata.
利用包括人类在内的44种原猴类和猿猴类大脑的连续切片，测量了连合后海马区（下托、CA1、CA2、CA3、齿状回和齿状筋膜）的体积。将这些体积与脑化程度最低的真兽类哺乳动物——马达加斯加猬（食虫目，猬科；4种）的体积进行了异速生长比较。原猴类的连合后海马区比马达加斯加猬大2.9倍，非人猿猴类大2.4倍，人类大4.1倍。不同的海马区与整个海马体的增大程度并不一致。根据它们在灵长类动物中的增大程度，这些区域可分为三类：a）增大程度最大的结构是下托和CA1区。b）齿状回的增大程度与整个连合后海马区相似。c）与猬类相比，海马区CA2、CA3和齿状筋膜没有增大或仅略有增大。
