Collin S P, Pettigrew J D
Department of Physiology and Pharmacology, University of Queensland, St. Lucia, Australia.
Brain Behav Evol. 1988;31(5):283-95. doi: 10.1159/000116595.
The retinal ganglion cell layer of five species of reef teleosts was studied from Nissl-stained whole-mounts and the distribution of neural elements determined quantitatively. Iso-density contour maps of neurons in the ganglion cell layer revealed a temporal area centralis (ranging from 3.5 to 8.3 x 10(4) cells/mm2) which often extended into a horizontal streak (ranging from 1.4 to 5.0 x 10(4) cells/mm2) across the retinal meridian. Species possessing a marked horizontal streak were found to inhabit open water and perceive their environment with an uninterrupted view of sand-water horizon. The behavioural significance of these horizontal areas of acute vision is also discussed.
对五种珊瑚礁硬骨鱼的视网膜神经节细胞层进行了尼氏染色全层标本研究，并对神经元件的分布进行了定量测定。神经节细胞层中神经元的等密度等高线图显示有一个中央颞区（范围为3.5至8.3×10⁴个细胞/mm²），该区域常常延伸穿过视网膜子午线形成一条水平条纹（范围为1.4至5.0×10⁴个细胞/mm²）。发现具有明显水平条纹的物种栖息于开阔水域，能通过不间断地观察沙水地平线来感知周围环境。还讨论了这些急性视觉水平区域的行为意义。
