Barlow R B, Bolanowski S J, Brachman M L
Science. 1977 Jul 1;197(4298):86-9. doi: 10.1126/science.867057.
When the horseshoe crab is kept in constant darkness, the lateral eye produces larger electroretinographic and optic nerve responses at night than during the day. These circadian rhythms are mediated by synchronous bursts of efferent impulses in the optic nerve trunk. The endogenous efferent activity appears to increase both the gain and the quantum catch of the photoreceptors.
当鲎处于持续黑暗环境中时,其侧眼在夜间产生的视网膜电图和视神经反应比白天更大。这些昼夜节律由视神经干中传出冲动的同步爆发介导。内源性传出活动似乎增加了光感受器的增益和量子捕获量。