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Turning preference in dogs: North attracts while south repels
It was shown earlier that dogs, when selecting between two dishes with snacks placed in front of them, left and right, prefer to turn either clockwise or counterclockwise or randomly in either direction. This preference (or non-preference) is individually consistent in all trials but it is biased in...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7842976/ https://www.ncbi.nlm.nih.gov/pubmed/33507979 http://dx.doi.org/10.1371/journal.pone.0245940 |
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author | Adámková, Jana Benediktová, Kateřina Svoboda, Jan Bartoš, Luděk Vynikalová, Lucie Nováková, Petra Hart, Vlastimil Painter, Michael S. Burda, Hynek |
author_facet | Adámková, Jana Benediktová, Kateřina Svoboda, Jan Bartoš, Luděk Vynikalová, Lucie Nováková, Petra Hart, Vlastimil Painter, Michael S. Burda, Hynek |
author_sort | Adámková, Jana |
collection | PubMed |
description | It was shown earlier that dogs, when selecting between two dishes with snacks placed in front of them, left and right, prefer to turn either clockwise or counterclockwise or randomly in either direction. This preference (or non-preference) is individually consistent in all trials but it is biased in favor of north if they choose between dishes positioned north and east or north and west, a phenomenon denoted as “pull of the north”. Here, we replicated these experiments indoors, in magnetic coils, under natural magnetic field and under magnetic field shifted 90° clockwise. We demonstrate that "pull of the north" was present also in an environment without any outdoor cues and that the magnetic (and not topographic) north exerted the effect. The detailed analysis shows that the phenomenon involves also "repulsion of the south". The clockwise turning preference in the right-preferring dogs is more pronounced in the S-W combination, while the counterclockwise turning preference in the left-preferring dogs is pronounced in the S-E combination. In this way, south-placed dishes are less frequently chosen than would be expected, while the north-placed dishes are apparently more preferred. Turning preference did not correlate with the motoric paw laterality (Kong test). Given that the choice of a dish is visually guided, we postulate that the turning preference was determined by the dominant eye, so that a dominant right eye resulted in clockwise, and a dominant left eye in counterclockwise turning. Assuming further that magnetoreception in canines is based on the radical-pair mechanism, a "conflict of interests" may be expected, if the dominant eye guides turning away from north, yet the contralateral eye "sees the north", which generally acts attractive, provoking body alignment along the north-south axis. |
format | Online Article Text |
id | pubmed-7842976 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-78429762021-02-04 Turning preference in dogs: North attracts while south repels Adámková, Jana Benediktová, Kateřina Svoboda, Jan Bartoš, Luděk Vynikalová, Lucie Nováková, Petra Hart, Vlastimil Painter, Michael S. Burda, Hynek PLoS One Research Article It was shown earlier that dogs, when selecting between two dishes with snacks placed in front of them, left and right, prefer to turn either clockwise or counterclockwise or randomly in either direction. This preference (or non-preference) is individually consistent in all trials but it is biased in favor of north if they choose between dishes positioned north and east or north and west, a phenomenon denoted as “pull of the north”. Here, we replicated these experiments indoors, in magnetic coils, under natural magnetic field and under magnetic field shifted 90° clockwise. We demonstrate that "pull of the north" was present also in an environment without any outdoor cues and that the magnetic (and not topographic) north exerted the effect. The detailed analysis shows that the phenomenon involves also "repulsion of the south". The clockwise turning preference in the right-preferring dogs is more pronounced in the S-W combination, while the counterclockwise turning preference in the left-preferring dogs is pronounced in the S-E combination. In this way, south-placed dishes are less frequently chosen than would be expected, while the north-placed dishes are apparently more preferred. Turning preference did not correlate with the motoric paw laterality (Kong test). Given that the choice of a dish is visually guided, we postulate that the turning preference was determined by the dominant eye, so that a dominant right eye resulted in clockwise, and a dominant left eye in counterclockwise turning. Assuming further that magnetoreception in canines is based on the radical-pair mechanism, a "conflict of interests" may be expected, if the dominant eye guides turning away from north, yet the contralateral eye "sees the north", which generally acts attractive, provoking body alignment along the north-south axis. Public Library of Science 2021-01-28 /pmc/articles/PMC7842976/ /pubmed/33507979 http://dx.doi.org/10.1371/journal.pone.0245940 Text en © 2021 Adámková et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Adámková, Jana Benediktová, Kateřina Svoboda, Jan Bartoš, Luděk Vynikalová, Lucie Nováková, Petra Hart, Vlastimil Painter, Michael S. Burda, Hynek Turning preference in dogs: North attracts while south repels |
title | Turning preference in dogs: North attracts while south repels |
title_full | Turning preference in dogs: North attracts while south repels |
title_fullStr | Turning preference in dogs: North attracts while south repels |
title_full_unstemmed | Turning preference in dogs: North attracts while south repels |
title_short | Turning preference in dogs: North attracts while south repels |
title_sort | turning preference in dogs: north attracts while south repels |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7842976/ https://www.ncbi.nlm.nih.gov/pubmed/33507979 http://dx.doi.org/10.1371/journal.pone.0245940 |
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