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Fig. 4 | Frontiers in Zoology

Fig. 4

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

Fig. 4

Subjects during training procedure in the apparatus. Both subjects a male A. caraya (black pelage) and a female A. seniculus (red pelage) inside the experimental chamber during training session. The monitor on the left displays a stimulus similar to the test stimulus with the target on the bottom surrounded by an isochromatic field composed of the same pattern of circles

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Frontiers in Zoology

ISSN: 1742-9994