Douglas R H, Harper R D, Case J F
Department of Optometry and Visual Science, City University, London, UK.
Vision Res. 1998 Sep;38(18):2697-710. doi: 10.1016/s0042-6989(98)00021-2.
The pupil response of Porichthys notatus to different intensities of illumination is described and compared to that of P. myriaster, Cephaloscyllium ventroisum, and a human. While the fully dark adapted pupil is round, at the highest light intensities it consists of only two small, almost independent, apertures with a total area 4.9% of that observed in the fully dilated animal. The response is at least partially consensual and occurs, albeit at a much reduced rate, in isolated eyes. P. notatus also displays retinomotor movements comparable to those seen in most teleosts, suggesting that, contrary to most previous assumptions, pupillary responses and retinomotor migrations are not mutually exclusive.
描述了多斑烛光鱼(Porichthys notatus)对不同光照强度的瞳孔反应,并将其与星点烛光鱼(P. myriaster)、日本扁鲨(Cephaloscyllium ventroisum)以及人类的瞳孔反应进行了比较。虽然完全暗适应的瞳孔是圆形的,但在最高光照强度下,它仅由两个小的、几乎独立的小孔组成,总面积仅为完全扩张时观察到的面积的4.9%。这种反应至少部分是交感的,并且在离体眼中也会发生,尽管速率大大降低。多斑烛光鱼还表现出与大多数硬骨鱼相似的视网膜运动,这表明,与之前的大多数假设相反,瞳孔反应和视网膜运动迁移并非相互排斥。