Using the Hard, Randy, and Rittler Test to Evaluate Color Vision in Capuchins (Cebus libidinosus)

Altavini, Tiago Siebert; Henriques, Leonardo Dutra; Bonci, Daniela Maria Oliveira; Nagy, Balázs Vince; Ventura, Dora Fix; Pessoa, Valdir Filgueiras

doi:10.1007/s10764-012-9638-8

Cited by 5 publications

(3 citation statements)

References 16 publications

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“…The capuchin monkeys ( Sapajus sp.) have already been used as an experimental model in comparative visual studies [ 9 , 10 ]. However, anatomical, histological and imaging descriptions of ophthalmic structures have not been described.…”

Section: Introductionmentioning

confidence: 99%

Morphological study of the eye and adnexa in capuchin monkeys (Sapajus sp.)

et al. 2017

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The objective of this study was to describe the anatomic and histologic features of the Sapajus sp. eye, comparing similarities and differences of humans and other species of non-human primates for biomedical research purposes. Computed tomography (CT) of adnexa, eye and orbit live animal, as well as formolized pieces of the same structures of Sapajus sp. for anatomical and histological study were also performed. The anatomical description of the eye and adnexa was performed using the techniques of topographic dissection and exenteration. Histological fragments were fixated in buffered formalin 10%, processed by the routine paraffin inclusion technique, stained with hematoxylin-eosin and special stains. CT scan evaluation showed no differences between the live animal and the formolized head on identification of visual apparatus structures. Anatomic and histologic evaluation revealed rounded orbit, absence of the supraorbital foramen and frontal notch, little exposure of the sclera, with slight pigmentation of the exposed area and marked pigmentation at the sclerocorneal junction. Masson's Trichrome revealed the Meibomian glands, the corneal epithelium and Bowman's membrane; in the choroid, melanocytes and Bruch's membrane were observed; and in the retina, cones and rods as well as, optic nerve, the lamina cribrosa of the nerve fibers bundles. Toluidine blue highlighted the membranes: Bowman, Descemet and the endothelium; in the choroid: melanocytes; and in the retina: nuclear layers and retinal pigment epithelium. In view of the observed results Sapajus sp. is an important experimental model for research in the ophthalmology field, which has been shown due to the high similarity of its anatomical and histological structures with the human species.

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Section: Introductionmentioning

confidence: 99%

Morphological study of the eye and adnexa in capuchin monkeys (Sapajus sp.)

et al. 2017

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“…Pesquisas relacionadas ao estudo da visão em primatas neotropicais têm ganhado espaço no meio científico (Altavini, 2012, Saletti, 2010, Silva, 2012, Henriques et al, 2014, Belham, 2013. Diferentemente dos primatas do Velho Mundo que possuem tricromacia uniforme, os primatas do Novo Mundo apresentam um polimorfismo da visão de cores relacionado ao sexo, no qual todos os machos são dicromatas e as fêmeas podem ser dicromatas ou tricromatas, com duas exceções: o monocromatismo do gênero Aotus e o tricromatismo em ambos os sexos no gênero Alouatta.…”

Section: Características Gerais E Adaptaçõesunclassified

Biological and behavioral aspects of Sapajus libidinosus: Review

Salles

Carreiro

Medeiros

et al. 2017

Pubvet

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RESUMO.Os macacos-prego da espécie Sapajus libidinosus são conhecidos como os macacos mais robustos e inteligentes do Novo Mundo, e dentre as espécies neotropicais, é a que apresenta maior distribuição geográfica. Devido a isso e também pelo fácil manuseio e a facilidade de reprodução em cativeiro, o gênero vem sendo utilizado em diversas pesquisas, dada a sua proximidade filogenética com a espécie humana, servindo de modelo biológico em experimentos aplicados a essa espécie, com ampla variedade de pesquisas biomédicas. É uma espécie considerada quase ameaçada no Brasil segundo critérios de avaliação do ICMBio (2012ICMBio ( -2014 e o estudo do comportamento animal surge como um meio de pesquisa científica que tem proporcionado importantes contribuições além do estudo do comportamento humano, neurociências, meio ambiente e bem-estar animal, também com a preservação de espécies. Considerando a relevância que a pesquisa do comportamento e biologia animal vem tomando dentro da comunidade científica, esse estudo tem por objetivo uma revisão de literatura acerca da espécie Sapajus libidinosus enfatizando, dentro do tema em questão, sua taxonomia, distribuição geográfica e população, características gerais e adaptações, vida social, alimentação e reprodução.Palavras chave: Cebidae, comportamento animal, preservação de espécies Biological and behavioral aspects of Sapajus libidinosus: ReviewABSTRACT. The black striped capuchin monkey of the species Sapajus libidinosus are known as the most robust and intelligent monkeys of the New World, and of the neotropical species, it is the one that presents greater geographical distribution. Due to this and also because of the easy handling and the ease of reproduction in captivity, the genus has been used in several researches, given its phylogenetic proximity to the human species, serving as a biological model in experiments applied to this species, with a wide variety of Biomedical research. It is a species considered almost threatened in Brazil according to ICMBio (2012ICMBio ( -2014 evaluation criteria and the study of animal behavior emerges as a means of scientific research that has provided important contributions besides the study of human behavior, neurosciences, environment and animal welfare, also With the preservation of species. Considering the relevance of behavioral research and animal biology within the scientific community, this study aims to review the literature on the species Sapajus libidinosus, emphasizing, within the theme, its taxonomy, geographic distribution and population, general characteristics and adaptations, social life, food and reproduction.

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“…and capuchin monkeys (Cebus sp. and Sapajus spp) [18][19][20], as well as an albino Sapajus apella subject [21].…”

Section: Introductionmentioning

confidence: 99%

Uniform trichromacy in Alouatta caraya and Alouatta seniculus: behavioural and genetic colour vision evaluation

et al. 2021

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Primate colour vision depends on a matrix of photoreceptors, a neuronal post receptoral structure and a combination of genes that culminate in different sensitivity through the visual spectrum. Along with a common cone opsin gene for short wavelengths (sws1), Neotropical primates (Platyrrhini) have only one cone opsin gene for medium-long wavelengths (mws/lws) per X chromosome while Paleotropical primates (Catarrhini), including humans, have two active genes. Therefore, while female platyrrhines may be trichromats, males are always dichromats. The genus Alouatta is inferred to be an exception to this rule, as electrophysiological, behavioural and molecular analyses indicated a potential for male trichromacy in this genus. However, it is very important to ascertain by a combination of genetic and behavioural analyses whether this potential translates in terms of colour discrimination capability. We evaluated two howler monkeys (Alouatta spp.), one male A. caraya and one female A. seniculus, using a combination of genetic analysis of the opsin gene sequences and a behavioral colour discrimination test not previously used in this genus. Both individuals completed the behavioural test with performances typical of trichromatic colour vision and the genetic analysis of the sws1, mws, and lws opsin genes revealed three different opsin sequences in both subjects. These results are consistent with uniform trichromacy in both male and female, with presumed spectral sensitivity peaks similar to Catarrhini, at ~ 430 nm, 532 nm, and 563 nm for S-, M- and L-cones, respectively.

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Using the Hard, Randy, and Rittler Test to Evaluate Color Vision in Capuchins (Cebus libidinosus)

Cited by 5 publications

References 16 publications

Morphological study of the eye and adnexa in capuchin monkeys (Sapajus sp.)

Morphological study of the eye and adnexa in capuchin monkeys (Sapajus sp.)

Biological and behavioral aspects of Sapajus libidinosus: Review

Uniform trichromacy in Alouatta caraya and Alouatta seniculus: behavioural and genetic colour vision evaluation

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