Necker R
Institut f. Tierphysiologie, Ruhr-Universität Bochum, West Germany.
Brain Res Bull. 1991 Nov;27(5):581-6. doi: 10.1016/0361-9230(91)90030-n.
Avian dorsal column nuclei do not project to the cerebellum. Injections of fluorescent tracers into the spinocerebellum of homing pigeons (Columba livia) disclosed a group of neurons located rostral to the dorsal column nuclei which receives spinal primary afferents, as confirmed by double-labeling experiments. Since this group has some similarities to the mammalian group x (location medial to the restiform body, spinal afferents, efferents to the cerebellum), this name was adopted for the pigeon. Further brainstem nuclei projecting to anterior or posterior spinocerebellum and with some relevance to transmission of spinal signals are described.
鸟类的背柱核不投射到小脑。向归巢鸽（Columba livia）的脊髓小脑注射荧光示踪剂后，发现一组位于背柱核前方的神经元，双标记实验证实该组神经元接收脊髓初级传入纤维。由于该组神经元与哺乳动物的X组（位于绳状体内侧、有脊髓传入纤维、传出至小脑）有一些相似之处，因此鸽子的这一组也采用了这个名称。文中还描述了其他投射到脊髓小脑前叶或后叶且与脊髓信号传递有一定关联的脑干核团。
