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Updated: Sep 3, 2025

The Other End of the Leash: An Experimental Test to Analyze How Owners Interact with Their Pet Dogs
Published on: October 13, 2017
Assessing the Relationship Between Emotional States of Dogs and Their Human Handlers, Using Simultaneous Behavioral
Emma K Grigg1, Serene Liu2, Denise G Dempsey3
1Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States.
Increasing familiarity with handlers and settings significantly reduces canine stress during handling. Dogs showed decreased heart rate and increased heart rate variability with more exposure, indicating improved emotional states.
Area of Science:
- Veterinary Medicine
- Animal Behavior
- Human-Animal Interaction
Background:
- Companion dogs often experience stress during veterinary handling, posing risks to staff and care quality.
- Positive human interactions can mitigate stress in dogs, especially in challenging environments like shelters.
- Dogs possess the ability to perceive human emotions through various sensory channels and can exhibit emotional contagion.
Purpose of the Study:
- To investigate the relationship between the emotional states of dogs and unfamiliar human handlers.
- To assess the impact of handler familiarity and routine handling on canine stress levels.
- To explore potential emotional contagion between dogs and handlers during handling sessions.
Main Methods:
- Simultaneous recording of cardiac activity (mean heart rate, RMSSD, HF_log) and behavior in dogs and handlers.
- Utilized Polar H10 cardiac sensors and digital video for data collection.
- Assessed human emotional states before and after stress-reduction interventions compared to control conditions.
Main Results:
- Increasing familiarity with the setting and handler was the primary factor influencing canine stress.
- Dogs exhibited significantly decreased mean heart rate and increased heart rate variability (RMSSD) from the first to the third handling set.
- Canine heart rate variability (HF_log) was highest in the third set, though not statistically significant. No strong patterns were observed in human cardiac data.
Conclusions:
- Familiarity and repeated exposure to handlers and settings demonstrably reduce stress in dogs.
- The study did not find consistent evidence of emotional contagion between dogs and handlers, possibly due to limited interaction duration.
- Findings offer practical recommendations for improving dog handling in clinical and other settings.
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