2026-03-11T19:21:41Z https://az.repo.nii.ac.jp/oai

oai:az.repo.nii.ac.jp:02000340 2025-02-17T05:54:48Z 423

Autonomic nervous system responses of dogs to human-dog interaction videos Matsushita, Shohei Matsushita Shohei Nagasawa, Miho Nagasawa Miho Kikusui, Takefumi Kikusui Takefumi We examined whether dogs show emotional response to social stimuli played on videos. Secondary, we hypothesized that if dogs recognize themselves in videos, they will show a different emotional response to videos of self and other dogs. We compared heart rate variability among four video stimuli: a video of the owner ignoring another dog (OW-A-IGN), a video of a non-owner interacting with another dog (NOW-A-INT), a video of the owner interacting with another dog (OW-A-INT), and a video of the owner interacting with the dog subject (OW-S-INT). The results showed that root mean square of the difference between adjacent R-R Intervals (RMSSD) and standard deviation of the R-R Interval (SDNN) were lower in NOW-A-INT and OW-S-INT than in OW-A-IGN. There was no statistical difference in the responses to OW-S-INT and OW-A-INT, suggesting that dogs did not distinguish themselves and other dogs in videos. On the other hand, the difference in mean R-R Interval between OW-S-INT and OW-A-INT showed positive correlation with the score of attachment or attention-seeking behavior. Therefore, this study does not completely rule out self-recognition in dogs and there remains the possibility that the more attached a dog to its owner, the more distinct the dog’s emotional response to the difference between the self-video stimulus and the video stimulus of another dog. Further studies are needed to clarify this possibility. Public Library of Science 2022-11-03 eng journal article VoR https://az.repo.nii.ac.jp/records/2000340 10.1371/journal.pone.0257788 PloS one 17 11 e0257788 https://az.repo.nii.ac.jp/record/2000340/files/Autonomic nervous system responses of dogs to human-dog interaction videos.pdf application/pdf 903 KB 2025-02-17