ArticleAnimals : an open access journal from MDPI2018
Valence and Intensity of Video Stimuli of Dogs and Conspecifics in Sheep: Approach-Avoidance, Operant Response, and Attention.
Article in Animals : an open access journal from MDPI, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
16 citing papers in PubMed, 35 citations in OpenAlex.
- Influence of Uncertainties in Optode Positions on Self-Calibrating or Dual-Slope Diffuse Optical Measurements.Photonics · 2025Article
- Autism-like atypical face processing inScience advances · 2025Article
- Mainly Visual Aspects of Emotional Laterality in Cognitively Developed and Highly Social Mammals-A Systematic Review.Brain sciences · 2024Review
- Article
- Examination of head versus body heading may help clarify the extent to which animal movement pathways are structured by environmental cues?Movement ecology · 2023Article
- Positive Aspects of Welfare in Sheep: Current Debates and Future Opportunities.Animals : an open access journal from MDPI · 2022Review
- Affective State Recognition in Livestock-Artificial Intelligence Approaches.Animals : an open access journal from MDPI · 2022Review
- Goats show higher behavioural flexibility than sheep in a spatial detour task.Royal Society open science · 2021Article
- Horses show individual level lateralisation when inspecting an unfamiliar and unexpected stimulus.PloS one · 2021Article
- Attention Bias Test Measures Negative But Not Positive Affect in Sheep: A Replication Study.Animals : an open access journal from MDPI · 2020Article
- Dual-slope method for enhanced depth sensitivity in diffuse optical spectroscopy.Journal of the Optical Society of America. A, Optics, image science, and vision · 2019Article
- Mood induction alters attention toward negative-positive stimulus pairs in sheep.Scientific reports · 2019Article
- Article
- Evaluation of Sheep Anticipatory Response to a Food Reward by Means of Functional Near-Infrared Spectroscopy.Animals : an open access journal from MDPI · 2018Article
- Weak General but No Specific Habituation in Anticipating Stimuli of Presumed Negative and Positive Valence by Weaned Piglets.Animals : an open access journal from MDPI · 2018Article
- Affect-Driven Attention Biases as Animal Welfare Indicators: Review and Methods.Animals : an open access journal from MDPI · 2018Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Stimuli are often presumed to be either negative or positive. However, animals' judgement of their negativity or positivity cannot generally be assumed. A possibility to assess emotional states in animals elicited by stimuli is to investigate animal preferences and their motivation to gain access to these stimuli. This study's aim was to assess the valence of social stimuli in sheep. We used silent videos of varying intensity of dogs as negative versus conspecifics as positive stimuli in three approaches: (1) an approach⁻avoidance paradigm; (2) operant conditioning using the video stimuli as reinforcers; and (3) an attention test. In the latter, we assessed differential attention of sheep to simultaneous projections by automatically tracking sheep head and ear postures and recording brain activity. With these approaches, it was difficult to support that the sheep's reactions varied according to the stimuli's presumed valence and intensity. The approach⁻avoidance paradigm and attention test did not support the assumption that dog videos were more negative than sheep videos, though sheep reacted to the stimuli presented. Results from the operant conditioning indicated that sheep were more prone to avoid videos of moving dogs. Overall, we found that standard video images may not be ideal to represent valence characteristics of stimuli to sheep.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.