Data from: Color discrimination in the tufted capuchin monkey, Sapajus spp

Main Authors: Goulart, Paulo Roney Kilpp, Bonci, Daniela Maria Oliveira, Galvão, Olavo de Faria, Silveira, Luiz Carlos de Lima, Ventura, Dora Fix
Format: info dataset Journal
Terbitan: , 2013
Subjects:
Online Access: https://zenodo.org/record/4962583
Daftar Isi:
  • The present study evaluated the efficacy of an adapted version of the Mollon-Reffin test for the behavioral investigation of color vision in capuchin monkeys. Ten tufted capuchin monkeys (Sapajus spp., formerly referred to as Cebus apella) had their DNA analyzed and were characterized as the following: one trichromat female, seven deuteranope dichromats (six males and one female), and two protanope males, one of which was identified as an "ML protanope." For their behavioral characterization, all of the subjects were tested at three regions of the Commission International de l'Eclairage (CIE) 1976 u′v′ diagram, with each test consisting of 20 chromatic variation vectors that were radially distributed around the chromaticity point set as the test background. The phenotypes inferred from the behavioral data were in complete agreement with those predicted from the genetic analysis, with the threshold distribution clearly differentiating between trichromats and dichromats and the estimated confusion lines characteristically converging for deuteranopes and the "classic" protanope. The discrimination pattern of the ML protanope was intermediate between protan and deutan, with confusion lines horizontally oriented and parallel to each other. The observed phenotypic differentiation confirmed the efficacy of the Mollon-Reffin test paradigm as a useful tool for evaluating color discrimination in nonhuman primates. Especially noteworthy was the demonstration of behavioral segregation between the "classic" and "ML" protanopes, suggesting identifiable behavioral consequences of even slight variations in the spectral sensitivity of M/L photopigments in dichromats.
  • Goulart et al. (2013) - behavioral dataColor discrimination data of ten capuchin monkeys (Sapajus spp), two Female, eight Male. Discrimination thresholds obtained for each monkey in 20 test vectors around three different background coordinates (CIE 1976 u' v' chromaticity diagram). Thresholds are presented in terms of distance from background point (u' v' units x10^-4) and of u' v' coordinates.Goulart et al. (2013) - genetic dataAmino acid sequences from exons 3 and 5 of the X-linked opsin genes of ten capuchin monkeys (Sapajus spp), two Female, eight Male. Sequencing of exons 3 and 5 allowed the deduction of the amino acid combinations at positions 180, 277, and 285 of the resulting opsins, from which the range of potential absorption maxima of the corresponding photopigments was inferred.