DeVoogd T J, Nottebohm F
J Comp Neurol. 1981 Feb 20;196(2):309-16. doi: 10.1002/cne.901960209.
Singing in the canary is a learned male behavior controlled predominantly by nuclei in the left hemisphere (Nottebohm and Nottebohm, '76; Nottebohm et al., '76; Nottebohm, '77). These nuclei are several times larger in males than in females (Nottebohm and Arnold, '76). One of the telencephalic song control nuclei, robustus archistriatalis (RA), was examined in Golgi-stained tissue sections from the left and right hemispheres of male and female canaries. At least four cell classes were present in each sex. One of these cell classes was further studied with a variety of quantitative techniques. No hemispheric differences were seen in either sex. However, dendrites from male cells tend to branch and end further from the cell body than do dendrites from female cells. This difference is seen most clearly when serial sections are used to reconstruct the entire dendritic tree.
金丝雀唱歌是一种后天习得的雄性行为，主要由左半球的神经核控制（诺特博姆和诺特博姆，1976年；诺特博姆等人，1976年；诺特博姆，1977年）。这些神经核在雄性中比在雌性中大几倍（诺特博姆和阿诺德，1976年）。在雄性和雌性金丝雀左右半球的高尔基染色组织切片中，对端脑鸣叫控制神经核之一的古纹状体粗核（RA）进行了检查。每个性别中至少存在四种细胞类型。其中一种细胞类型通过多种定量技术进行了进一步研究。在任何一个性别中都未观察到半球差异。然而，雄性细胞的树突比雌性细胞的树突更倾向于从细胞体处分支并延伸得更远。当使用连续切片重建整个树突树时，这种差异最为明显。
