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      Correction: Using imaging photoplethysmography for heart rate estimation in non-human primates

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          The following information is missing from the Funding section: This study was supported by the German Research Foundation and the Open Access Publication Funds of the Göttingen University.

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          Using imaging photoplethysmography for heart rate estimation in non-human primates

          Anton Unakafov, Sebastian Möller, Igor Kagan … (2018)
          For humans and for non-human primates heart rate is a reliable indicator of an individual’s current physiological state, with applications ranging from health checks to experimental studies of cognitive and emotional state. In humans, changes in the optical properties of the skin tissue correlated with cardiac cycles (imaging photoplethysmogram, iPPG) allow non-contact estimation of heart rate by its proxy, pulse rate. Yet, there is no established simple and non-invasive technique for pulse rate measurements in awake and behaving animals. Using iPPG, we here demonstrate that pulse rate in rhesus monkeys can be accurately estimated from facial videos. We computed iPPGs from eight color facial videos of four awake head-stabilized rhesus monkeys. Pulse rate estimated from iPPGs was in good agreement with reference data from a contact pulse-oximeter: the error of pulse rate estimation was below 5% of the individual average pulse rate in 83% of the epochs; the error was below 10% for 98% of the epochs. We conclude that iPPG allows non-invasive and non-contact estimation of pulse rate in non-human primates, which is useful for physiological studies and can be used toward welfare-assessment of non-human primates in research.
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            Journal
            Journal ID (nlm-ta): PLoS One
            Journal ID (iso-abbrev): PLoS ONE
            Journal ID (publisher-id): plos
            Journal ID (pmc): plosone
            Title: PLoS ONE
            Publisher: Public Library of Science (San Francisco, CA USA )
            ISSN (Electronic): 1932-6203
            Publication date (Electronic): 25 January 2019
            Publication date Collection: 2019
            Publication date PMC-release: 25 January 2019
            Volume: 14
            Issue: 1
            Electronic Location Identifier: e0211518
            Article
            Publisher ID: PONE-D-19-01535
            DOI: 10.1371/journal.pone.0211518
            PMC ID: 6347131
            PubMed ID: 30682191
            SO-VID: 61f29deb-bbaa-47db-90ba-d2fc9527ae92
            Copyright © © 2019 Unakafov et al
            License:

            This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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            Using imaging photoplethysmography for heart rate estimation in non-human primates
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