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Development of the horizontal optocollic reflex in juvenile barn owls (Tyto furcata pratincola)

Adult barn owls and primates possess an almost symmetric monocular rotational horizontal optocollic reflex. In primates, the reflex is initially asymmetric and becomes symmetric with time after birth. The condition in barn owls has not been studied so far. Here, we present data on the development of...

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Autores principales: Wagner, Hermann, Pappe, Ina, Brill, Sandra, Nalbach, Hans-Ortwin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9250920/
https://www.ncbi.nlm.nih.gov/pubmed/35695937
http://dx.doi.org/10.1007/s00359-022-01555-0
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author Wagner, Hermann
Pappe, Ina
Brill, Sandra
Nalbach, Hans-Ortwin
author_facet Wagner, Hermann
Pappe, Ina
Brill, Sandra
Nalbach, Hans-Ortwin
author_sort Wagner, Hermann
collection PubMed
description Adult barn owls and primates possess an almost symmetric monocular rotational horizontal optocollic reflex. In primates, the reflex is initially asymmetric and becomes symmetric with time after birth. The condition in barn owls has not been studied so far. Here, we present data on the development of this reflex in this bird. We tested juvenile barn owls from the time before they open their eyes after hatching to the time they reach adult feather length. Wide-field visual patterns served as stimuli. They were presented at different rotational speeds in binocular and monocular settings. The binocular horizontal optocollic responses of juvenile barn owls were symmetric and adult-like on the first day that the birds responded to the stimulus. The monocular responses showed different rates of development in respect to stimulus velocity and stimulus direction. For velocities up to 20 deg/s, the monocular reflex was also adult-like on the first day that the birds responded to the stimulus. An initially higher asymmetry for 30 deg/s compared to adults disappeared within about two weeks. The development at even higher velocities remained unclear. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00359-022-01555-0.
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spelling pubmed-92509202022-07-05 Development of the horizontal optocollic reflex in juvenile barn owls (Tyto furcata pratincola) Wagner, Hermann Pappe, Ina Brill, Sandra Nalbach, Hans-Ortwin J Comp Physiol A Neuroethol Sens Neural Behav Physiol Original Paper Adult barn owls and primates possess an almost symmetric monocular rotational horizontal optocollic reflex. In primates, the reflex is initially asymmetric and becomes symmetric with time after birth. The condition in barn owls has not been studied so far. Here, we present data on the development of this reflex in this bird. We tested juvenile barn owls from the time before they open their eyes after hatching to the time they reach adult feather length. Wide-field visual patterns served as stimuli. They were presented at different rotational speeds in binocular and monocular settings. The binocular horizontal optocollic responses of juvenile barn owls were symmetric and adult-like on the first day that the birds responded to the stimulus. The monocular responses showed different rates of development in respect to stimulus velocity and stimulus direction. For velocities up to 20 deg/s, the monocular reflex was also adult-like on the first day that the birds responded to the stimulus. An initially higher asymmetry for 30 deg/s compared to adults disappeared within about two weeks. The development at even higher velocities remained unclear. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00359-022-01555-0. Springer Berlin Heidelberg 2022-06-13 2022 /pmc/articles/PMC9250920/ /pubmed/35695937 http://dx.doi.org/10.1007/s00359-022-01555-0 Text en © The Author(s) 2022, corrected publication 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Original Paper
Wagner, Hermann
Pappe, Ina
Brill, Sandra
Nalbach, Hans-Ortwin
Development of the horizontal optocollic reflex in juvenile barn owls (Tyto furcata pratincola)
title Development of the horizontal optocollic reflex in juvenile barn owls (Tyto furcata pratincola)
title_full Development of the horizontal optocollic reflex in juvenile barn owls (Tyto furcata pratincola)
title_fullStr Development of the horizontal optocollic reflex in juvenile barn owls (Tyto furcata pratincola)
title_full_unstemmed Development of the horizontal optocollic reflex in juvenile barn owls (Tyto furcata pratincola)
title_short Development of the horizontal optocollic reflex in juvenile barn owls (Tyto furcata pratincola)
title_sort development of the horizontal optocollic reflex in juvenile barn owls (tyto furcata pratincola)
topic Original Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9250920/
https://www.ncbi.nlm.nih.gov/pubmed/35695937
http://dx.doi.org/10.1007/s00359-022-01555-0
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