Emotion, Pain, & Sentience

A new tool for quantifying mouse facial expressions

Facial expressions are an increasingly used tool to assess emotional experience and affective state during experimental procedures in animal models. Previous studies have successfully related specific facial features with different positive and negative valence situations, most notably in relation to...

Year Published: 2023Topics: Emotion, Pain, & Sentience, Welfare AssessmentAnimal Type: Mouse, Rodent

Citation: Moëne, O. L., Larsson, M. 2023. A new tool for quantifying mouse facial expressions. ENeuro 10(2) ENEURO.0349-22.2022.

Can the emotional state of calves be noticed by their facial expression and heart rate?

The aim of this study was to identify whether or not dairy calves change their facial expression and heart rate according to their emotional state when subjected to a stroking or umbrella stimulus. Thirty-two mixed-breed Holstein calves of different ages...

Year Published: 2023Topics: Biological Sampling & Physiological Measurement, Emotion, Pain, & Sentience, Welfare AssessmentAnimal Type: Cattle

Citation: Machado, M., Freitas Silveira, R. M., Machado Bittar, C. M. et al. 2023. Can the emotional state of calves be noticed by their facial expression and heart rate? Applied Animal Behaviour Science 260, 105874.

Recognising the facial expression of frustration in the horse during feeding period

Horses often present negative emotional states which are frequently poorly recognised, with much of our understanding of horse expressions based on anecdotes, rather than scientific evidence. The aim of this project was to identify potential facial markers of emotional states....

Year Published: 2023Topics: Emotion, Pain, & Sentience, Welfare AssessmentAnimal Type: Equine

Citation: Ricci-Bonot, C., Mills, D. S. 2023. Recognising the facial expression of frustration in the horse during feeding period. Applied Animal Behaviour Science 265, 105966.

Monkeying around: Non-human primate behavioural responses to humans reproducing their facial expressions

People are often observed mimicking animals' facial expressions in an attempt to communicate with them. However, to date, there is limited understanding of how animals respond to humans reproducing their facial displays, or if this type of human behaviour presents...

Year Published: 2023Topics: Emotion, Pain, & Sentience, Human-Animal InteractionAnimal Type: Macaque, Nonhuman Primate

Citation: Luisi, B., Micheletta, J., Julle-Danière, E. et al. 2023. Monkeying around: Non-human primate behavioural responses to humans reproducing their facial expressions. Applied Animal Behaviour Science 265, 105990.

Animal agency, animal awareness and animal welfare

In nature, animals need to actively engage with the environment in order to prosper in survival and reproduction. Hence, agency is a central adaptive characteristic of animal life. In this paper, I propose that from the adaptive/functional point of view,...

Year Published: 2019Topics: Emotion, Pain, & Sentience, Environmental Enrichment, Natural BehaviorAnimal Type: All/General, Cattle, Chicken, Equine, Fowl, Goat, Pig, Sheep

Citation: Špinka, M. 2019. Animal agency, animal awareness and animal welfare. Animal Welfare 28(1), 11–20.

Environmental challenge and animal agency

Challenges are there to be overcome – seen usually as problems to avoid rather than as opportunities to enjoy. However, for humans a life without challenge would be likely to be dull and boring, lacking the enthusiasm and satisfaction that...

Year Published: 2011Topics: Emotion, Pain, & Sentience, Environmental Enrichment, Natural BehaviorAnimal Type: All/General

Citation: Špinka, M., Wemelsfelder, F. 2011. Environmental challenge and animal agency. Animal Welfare 27–43.

In pursuit of peak animal welfare; the need to prioritize the meaningful over the measurable

Despite the diversity of animal welfare definitions, most recognise the centrality of the feelings of animals which are currently impossible to measure directly. As a result, animal welfare assessment is heavily reliant upon the indirect measurement of factors that either...

Year Published: 2017Topics: Emotion, Pain, & Sentience, Welfare AssessmentAnimal Type: All/General

Citation: Veasey, J. S. 2017. In pursuit of peak animal welfare; the need to prioritize the meaningful over the measurable. Zoo Biology 36(6), 413–425.

Poultry welfare: Science or subjectivity? British Poultry Science 43(5), 643–652

1. Most people in the developed world agree on what “animal welfare” is, although it is impossible to give it a precise scientific definition. 2. The argument is made that animal welfare is all to do with the feelings of...

Year Published: 2002Topics: Emotion, Pain, & SentienceAnimal Type: Bird, Chicken

Citation: Duncan, I. J. H. 2002. Poultry welfare: Science or subjectivity? British Poultry Science 43(5), 643–652.

Ultrasonic vocalizations near 30 kHz may indicate excitement rather than distress in female Wistar rats

Rats emit ultrasonic vocalizations (USVs), sometimes referred to as 50-kHz vocalizations, during activities such as play and lower-frequency USVs, sometimes referred to as 22-kHz vocalizations, when experiencing distress. Definitions of 22-kHz vocalizations vary in terms of which frequencies should be...

Year Published: 2023Topics: Emotion, Pain, & Sentience, VocalizationAnimal Type: Rat, Rodent

Citation: Lupfer, G., Brandenburger, A., Machado, M. et al. 2023. Ultrasonic vocalizations near 30 kHz may indicate excitement rather than distress in female Wistar rats. Applied Animal Behaviour Science 261, 105881.

The implications of cognitive processes for animal welfare

In general, codes that have been designed to safeguard the welfare of animals emphasize the importance of providing an environment that will ensure good health and a normal physiological and physical state, that is, they emphasize the animals' physical needs....

Year Published: 1991Topics: Emotion, Pain, & SentienceAnimal Type: All/General

Citation: Duncan, I. J., Petherick, J. C. 1991. The implications of cognitive processes for animal welfare. Journal of Animal Science 69(12), 5017–5022.