Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

849
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
849

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Animal empathy reconsidered: a multidimensional profile account.

Biological reviews of the Cambridge Philosophical Society·2026
Same author

Striking global similarities in dog-human interactions.

Scientific reports·2026
Same author

Pupil size changes reveal that dogs are sensitive to the social conventions behind human gestures.

Cognition·2026
Same author

Individual Differences in Great Ape Cognition Across Time and Domains: Stability, Structure, and Predictability.

Psychological science·2026
Same author

EVApeCognition: An 18-Year Dataset of Great Ape Cognition.

Scientific data·2026
Same author

Popperian Dogs-Practical Rationality and Inferential Reasoning in Dogs.

Animals : an open access journal from MDPI·2026

Related Experiment Video

Updated: Aug 30, 2025

Pupillometry to Assess Auditory Sensation in Guinea Pigs
09:25

Pupillometry to Assess Auditory Sensation in Guinea Pigs

Published on: January 6, 2023

1.9K

Pupil size changes reveal dogs' sensitivity to motion cues.

Christoph J Völter1, Ludwig Huber1

  • 1Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna and University of Vienna, Veterinaerplatz 1, 1210 Vienna, Austria.

Iscience
|September 2, 2022
PubMed
Summary

Dogs

Area of Science:

  • Animal behavior
  • Cognitive science
  • Neuroscience

Background:

  • Animals detect animate beings using motion cues like self-propulsion and speed changes.
  • Dogs (Canis familiaris) possess sophisticated sensory and cognitive abilities.

Purpose of the Study:

  • To investigate if dogs' pupil size is influenced by motion cues associated with animate beings.
  • To explore dogs' attentional responses to self-propelled and variable-speed movements.

Main Methods:

  • An eye-tracking study was conducted with dogs (Canis familiaris).
  • Dogs viewed videos of human agents and rolling balls with manipulated motion cues (e.g., reversed playback, variable speed).
  • Pupil size changes were monitored as an indicator of attentional focus.
Keywords:
Animal of veterinary interestAnimalsCognitive neuroscienceEthology

More Related Videos

Author Spotlight: An Accurate and Quantitative Approach to Study Visual Feature Selectivity of the Optokinetic Reflex in Mice
09:28

Author Spotlight: An Accurate and Quantitative Approach to Study Visual Feature Selectivity of the Optokinetic Reflex in Mice

Published on: June 23, 2023

3.0K
Assessing Pupil-linked Changes in Locus Coeruleus-mediated Arousal Elicited by Trigeminal Stimulation
07:26

Assessing Pupil-linked Changes in Locus Coeruleus-mediated Arousal Elicited by Trigeminal Stimulation

Published on: November 26, 2019

8.2K

Related Experiment Videos

Last Updated: Aug 30, 2025

Pupillometry to Assess Auditory Sensation in Guinea Pigs
09:25

Pupillometry to Assess Auditory Sensation in Guinea Pigs

Published on: January 6, 2023

1.9K
Author Spotlight: An Accurate and Quantitative Approach to Study Visual Feature Selectivity of the Optokinetic Reflex in Mice
09:28

Author Spotlight: An Accurate and Quantitative Approach to Study Visual Feature Selectivity of the Optokinetic Reflex in Mice

Published on: June 23, 2023

3.0K
Assessing Pupil-linked Changes in Locus Coeruleus-mediated Arousal Elicited by Trigeminal Stimulation
07:26

Assessing Pupil-linked Changes in Locus Coeruleus-mediated Arousal Elicited by Trigeminal Stimulation

Published on: November 26, 2019

8.2K

Main Results:

  • Dogs' pupil size significantly changed during videos depicting self-propelled movements (Experiment 1).
  • Pupil dilation also occurred in response to variable-speed ball movements (Experiment 2).
  • Constant speed and non-self-propelled movements did not elicit significant pupil size changes.

Conclusions:

  • Dogs' pupil size indicates an orientation towards stimuli with self-propelled and variable-speed motion.
  • These findings suggest dogs may use specific motion cues to detect animate beings.
  • This research provides insights into canine visual attention and motion perception.