Human Visual Ecology and Orientation Anisotropies in Acuity

The visual environment of Cree Indians from the east coast of James Bay, Quebec, is different from that of city-raised Euro-Canadians. So also are their corresponding orientation anisotropies in visual acuity. A Euro-Canadian sample exhibited the usual higher resolution for vertically and horizontal...

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Bibliographic Details
Published in:Science
Main Authors: Annis, Robert C., Frost, Barrie
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1973
Subjects:
Indian
Cree indians
James Bay
Online Access:http://dx.doi.org/10.1126/science.182.4113.729
https://www.science.org/doi/pdf/10.1126/science.182.4113.729
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spelling craaas:10.1126/science.182.4113.729 2024-06-09T07:45:32+00:00 Human Visual Ecology and Orientation Anisotropies in Acuity Annis, Robert C. Frost, Barrie 1973 http://dx.doi.org/10.1126/science.182.4113.729 https://www.science.org/doi/pdf/10.1126/science.182.4113.729 en eng American Association for the Advancement of Science (AAAS) Science volume 182, issue 4113, page 729-731 ISSN 0036-8075 1095-9203 journal-article 1973 craaas https://doi.org/10.1126/science.182.4113.729 2024-05-16T12:56:03Z The visual environment of Cree Indians from the east coast of James Bay, Quebec, is different from that of city-raised Euro-Canadians. So also are their corresponding orientation anisotropies in visual acuity. A Euro-Canadian sample exhibited the usual higher resolution for vertically and horizontally oriented gratings as compared with oblique orientations, while a Cree Indian sample did not. The most parsimonious explanation of these acuity differences is that orientation-specific detectors in humans are tuned by the early visual environment. Article in Journal/Newspaper Cree indians James Bay AAAS Resource Center (American Association for the Advancement of Science) Indian Science 182 4113 729 731
institution Open Polar
collection AAAS Resource Center (American Association for the Advancement of Science)
op_collection_id craaas
language English
description The visual environment of Cree Indians from the east coast of James Bay, Quebec, is different from that of city-raised Euro-Canadians. So also are their corresponding orientation anisotropies in visual acuity. A Euro-Canadian sample exhibited the usual higher resolution for vertically and horizontally oriented gratings as compared with oblique orientations, while a Cree Indian sample did not. The most parsimonious explanation of these acuity differences is that orientation-specific detectors in humans are tuned by the early visual environment.
format Article in Journal/Newspaper
author Annis, Robert C.
Frost, Barrie
spellingShingle Annis, Robert C.
Frost, Barrie
Human Visual Ecology and Orientation Anisotropies in Acuity
author_facet Annis, Robert C.
Frost, Barrie
author_sort Annis, Robert C.
title Human Visual Ecology and Orientation Anisotropies in Acuity
title_short Human Visual Ecology and Orientation Anisotropies in Acuity
title_full Human Visual Ecology and Orientation Anisotropies in Acuity
title_fullStr Human Visual Ecology and Orientation Anisotropies in Acuity
title_full_unstemmed Human Visual Ecology and Orientation Anisotropies in Acuity
title_sort human visual ecology and orientation anisotropies in acuity
publisher American Association for the Advancement of Science (AAAS)
publishDate 1973
url http://dx.doi.org/10.1126/science.182.4113.729
https://www.science.org/doi/pdf/10.1126/science.182.4113.729
geographic Indian
geographic_facet Indian
genre Cree indians
James Bay
genre_facet Cree indians
James Bay
op_source Science
volume 182, issue 4113, page 729-731
ISSN 0036-8075 1095-9203
op_doi https://doi.org/10.1126/science.182.4113.729
container_title Science
container_volume 182
container_issue 4113
container_start_page 729
op_container_end_page 731
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