Jorge Barreiro F J, Meininger V, Baudrimont M
Bull Assoc Anat (Nancy). 1976 Mar;60(168):131-6.
A comparative study of "normal" and "improperly oriented" pyramidal cells has been performed in the medial frontal lobe cortex of the monkey (Macacus Irus). The comparison of the observed number of topological types for each group of dendrites shows that the apical dendrites of each type of cells have a different growth. The apical dendrites of the normal pyramidal cells grow by monochotomous branching on random segments and have much more spines on the first order segments, the apical dendrites of the improperly oriented pyramidal cells grow by branching on pendant arcs (terminal growth model), and have fewer spines. The functional signification of these differences remains actually obscure.
在猕猴（恒河猴）的内侧额叶皮质中，对“正常”和“方向异常”的锥体细胞进行了一项比较研究。对每组树突观察到的拓扑类型数量的比较表明，每种类型细胞的顶端树突具有不同的生长方式。正常锥体细胞的顶端树突通过在随机节段上进行单叉分支生长，并且在一级节段上有更多的棘；方向异常的锥体细胞的顶端树突通过在悬垂弧上分支生长（末端生长模型），并且棘较少。这些差异的功能意义实际上仍然不清楚。
