Effect of luminosity on color discrimination of dichromatic marmosets (Callithrix jacchus)

Journal of the Optical Society of America. A, Optics, Image Science, and Vision
Fabio Batista Freitag, Daniel M A Pessoa

Abstract

Psychophysical data have shown that under mesopic conditions cones and rods can interact, improving color vision. Since electrophysiological data have suggested that rods of dichromatic marmosets appear to be active at higher luminance, we aimed to investigate the effect of different levels of sunlight on the foraging abilities of male dichromatic marmosets. Captive marmosets were observed under three different conditions, with respect to their performance in detecting colored food items against a green background. Compared to high and low light intensities, intermediate luminosities significantly increased detection of orange targets by male dichromats, an indication of rod intrusion.

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Citations

Sep 17, 2014·American Journal of Primatology·Eldianne Moreira de LimaValdir Filgueiras Pessoa
Aug 26, 2014·Frontiers in Neural Circuits·Samuel G Solomon, Marcello G P Rosa
Nov 3, 2016·Developmental Neurobiology·Samuel U NummelaJude F Mitchell
Feb 28, 2019·American Journal of Primatology·Filipa AbreuNicola Schiel
May 3, 2019·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Daniel Marques Almeida Pessoa, Fabio Batista Freitag
Sep 29, 2020·Frontiers in Psychology·Michèle N SchubigerJudith M Burkart
Jan 22, 2021·American Journal of Primatology·Pedro Z de MoraesDaniel M A Pessoa

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