Number of photoisomerizations caused by steady light that reduced the flash sensitivity to half the dark-adapted value

Range ~100 Photoisomerizations/sec
Organism Macaque Macaca fascicularis
Reference Baylor DA, Nunn BJ, Schnapf JL. The photocurrent, noise and spectral sensitivity of rods of the monkey Macaca fascicularis. J Physiol. 1984 Dec357: 575-607. p.591 bottom paragraphPubMed ID6512705
Method Recording membrane current from single outer segments projecting from small pieces of retina.
Comments The flash sensitivity of the cells in bicarbonate was reduced to half the dark-adapted value by about 60 photons/µm^2/sec, or about 100 isomerizations/sec.
Entered by Uri M
ID 107386