Investigating subtle changes in facial expression to assess acute pain in Japanese macaques

Abstract Changes in facial expression provide cues for assessing emotional states in mammals and may provide non-verbal signals of pain. This study uses geometric morphometrics (GMM) to explore the facial shape variation in female Japanese macaques who underwent experimental laparotomy. Face image s...

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Bibliographic Details
Main Authors: Vanessa N. Gris, Nelson Broche, Akihisa Kaneko, Munehiro Okamoto, Juri Suzuki, Daniel S. Mills, Takako Miyabe-Nishiwaki
Format: Article
Language:English
Published: Nature Portfolio 2022-11-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-23595-x