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Vocal recognition of owners by domestic cats (Felis catus)
Domestic cats have had a 10,000-year history of cohabitation with humans and seem to have the ability to communicate with humans. However, this has not been widely examined. We studied 20 domesticExpand
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Dog Breed Differences in Visual Communication with Humans
Domestic dogs (Canis familiaris) have developed a close relationship with humans through the process of domestication. In human-dog interactions, eye contact is a key element of relationshipExpand
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Social Modulation of Contagious Yawning in Wolves
On the basis of observational and experimental evidence, several authors have proposed that contagious yawn is linked to our capacity for empathy, thus presenting a powerful tool to explore the rootExpand
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Reduced Personal Space in Individuals with Autism Spectrum Disorder
Maintaining an appropriate distance from others is important for establishing effective communication and good interpersonal relations. Autism spectrum disorder (ASD) is a developmental disorderExpand
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Identification of a protanomalous chimpanzee by molecular genetic and electroretinogram analyses
We determined the structures of long (L)-wavelength-sensitive and middle (M)-wavelength-sensitive opsin gene array of 58 male chimpanzees and we investigated relative sensitivity to red and greenExpand
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Behavioral evidence of color vision deficiency in a protanomalia chimpanzee (Pan troglodytes)
Although color vision deficiency is very rare among Old World monkeys and apes, one male chimpanzee (Lucky) was identified as protanomalous by genetic and physiological analyses. This study assessedExpand
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Demonstration of a genotype–phenotype correlation in the polymorphic color vision of a non‐callitrichine New World monkey, capuchin (Cebus apella)
Color‐vision polymorphism in New World monkeys occurs because of an allelic polymorphism of the single‐copy red‐green middle‐to‐long‐wavelength‐sensitive (M/LWS) opsin gene on the X chromosome.Expand
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Advantage of Dichromats over Trichromats in Discrimination of Color-Camouflaged Stimuli in Humans
This study investigated whether 12 participants with color-vision deficiency had superior visual discrimination of color-camouflaged stimuli shown on a computer screen compared with 12 participantsExpand
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Role of neuritin in retinal ganglion cell death in adult mice following optic nerve injury
Neuritin is a small extracellular protein that plays important roles in the process of neural development, synaptic plasticity, and neural cell survival. Here we investigated the function of neuritinExpand
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Advantage of dichromats over trichromats in discrimination of color‐camouflaged stimuli in nonhuman primates
Due to a middle‐ to long‐wavelength‐sensitive (M/LWS) cone opsin polymorphism, there is considerable phenotypic variation in the color vision of New World monkeys. Many females have trichromaticExpand
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