Limits of spatial vision in Sumatran orangutans (Pongo abelii).

Although research with animals is often done under the assumption that visual abilities are similar across species, the visual ability of most animals, including orangutans, has not been experimentally evaluated. In this study we assessed the contrast sensitivity function (CSF) of two female zoo-hou...

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Main Authors: Laura C. Adams, Frances Wilkinson, Suzanne E. MacDonald
Format: Article
Language:English
Published: Animal Behavior and Cognition 2017-08-01
Series:Animal Behavior and Cognition
Subjects:
Online Access:http://www.animalbehaviorandcognition.org/article.php?id=1088
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author Laura C. Adams
Frances Wilkinson
Suzanne E. MacDonald
author_facet Laura C. Adams
Frances Wilkinson
Suzanne E. MacDonald
author_sort Laura C. Adams
collection DOAJ
description Although research with animals is often done under the assumption that visual abilities are similar across species, the visual ability of most animals, including orangutans, has not been experimentally evaluated. In this study we assessed the contrast sensitivity function (CSF) of two female zoo-housed Sumatran orangutans (Pongo abelii) aged 20 and 26 years old. Orangutans were rewarded for selecting vertical or horizontal square wave gratings at the correct orientation. Results showed a CSF similar in shape and position to that of human adults, although with lower contrast sensitivity. These lower values may be due to testing constraints or may be due to species differences. These data have implications for research on orangutan cognition, hominid evolution, and have practical implications for captive and wild management of this endangered species.
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spelling doaj.art-3c54f0f1ff79428a86072fe2dbf038882022-12-21T19:27:12ZengAnimal Behavior and CognitionAnimal Behavior and Cognition2372-50522372-43232017-08-014320422210.26451/abc.04.03.02.2017Limits of spatial vision in Sumatran orangutans (Pongo abelii).Laura C. AdamsFrances WilkinsonSuzanne E. MacDonaldAlthough research with animals is often done under the assumption that visual abilities are similar across species, the visual ability of most animals, including orangutans, has not been experimentally evaluated. In this study we assessed the contrast sensitivity function (CSF) of two female zoo-housed Sumatran orangutans (Pongo abelii) aged 20 and 26 years old. Orangutans were rewarded for selecting vertical or horizontal square wave gratings at the correct orientation. Results showed a CSF similar in shape and position to that of human adults, although with lower contrast sensitivity. These lower values may be due to testing constraints or may be due to species differences. These data have implications for research on orangutan cognition, hominid evolution, and have practical implications for captive and wild management of this endangered species.http://www.animalbehaviorandcognition.org/article.php?id=1088orangutansspatial
spellingShingle Laura C. Adams
Frances Wilkinson
Suzanne E. MacDonald
Limits of spatial vision in Sumatran orangutans (Pongo abelii).
Animal Behavior and Cognition
orangutans
spatial
title Limits of spatial vision in Sumatran orangutans (Pongo abelii).
title_full Limits of spatial vision in Sumatran orangutans (Pongo abelii).
title_fullStr Limits of spatial vision in Sumatran orangutans (Pongo abelii).
title_full_unstemmed Limits of spatial vision in Sumatran orangutans (Pongo abelii).
title_short Limits of spatial vision in Sumatran orangutans (Pongo abelii).
title_sort limits of spatial vision in sumatran orangutans pongo abelii
topic orangutans
spatial
url http://www.animalbehaviorandcognition.org/article.php?id=1088
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