Photoreceptor light adaptation models: an evaluation

article
Valeton, J.M.
Two current descriptions of photoreceptor responses in the presense of adapting background illumination are evaluated. Both descriptions are based on the Michaelis-Menten equation V/V(m) = I(n)/(I(n) + ??(n)), but they use this equation in different ways: (1) to describe increment responses to light increments on a background (the 'increment -light model') and (2) to describe the total receptor response as a function of total incident light intensity, i.e. increment plus background, (the 'incident-light model'). It is shown that the incident-light model gives the best and most comprehensive description of photoreceptor responses. This conclusion is based on theoretical considerations and is supported with examples using rod and cone response data taken from the literature.
Topics



















light adaptationluminancemathematical modelmichaelis constantnonbiological modelnonhumanphotoreceptor potentialretina coneretina rodtheoretical studyvisual systemAdaptation, OcularAnimalFishesHaplorhiniLightModels, NeurologicalPhotometryPhotoreceptorsTurtles
TNO Identifier
5731
Repository link
https://resolver.tno.nl/uuid:1e6039f5-8a94-4659-9440-f2c7ad14649b
Source
Vision Research, 23(12), pp. 1549-1554.
Pages
1549-1554
Files
To receive the publication files, please send an e-mail request to TNO Repository.