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  1. A review of behavioural methods to study emotion and mood in pigs, Sus scrofa

    Contributor(s):: Murphy, Eimear, Nordquist, Rebecca E., van der Staay, Franz Josef

    The study of emotions in animals is of increasing importance to a number of disciplines such as animal welfare science and affective neuroscience. Pigs are a common farm animal species, most often reared in intensive systems. Moreover, they are increasingly being used in laboratories. To...

  2. Responses of conventional pigs and Göttingen miniature pigs in an active choice judgement bias task

    Contributor(s):: Murphy, Eimear, Nordquist, Rebecca E., van der Staay, Franz Josef

    Pigs are commonly kept in intensive farming systems. Their use as model animals in biomedical research has increased. Both conditions may impact upon their welfare. Recent definitions of welfare emphasize the importance of emotion. Mood congruent biases in judgement have been proposed as proxy...

  3. Rescued goats at a sanctuary display positive mood after former neglect

    Full-text: Available

    | Contributor(s):: Briefer, Elodie F., McElligott, Alan G.

    Moods influence cognitive processes in that people in positive moods expect more positive events to occur and less negative ones (“optimistic bias”), whereas the opposite happens for people in negative moods (“pessimistic bias”). The evidence for an effect of mood on...

  4. Environmental enrichment and cognitive complexity in reptiles and amphibians: Concepts, review, and implications for captive populations

    | Contributor(s):: Burghardt, Gordon M.

    Reptiles and amphibians have been neglected in research on cognition, emotions, sociality, need for enriched and stimulating environments, and other topics that have been greatly emphasized in work on mammals and birds. This is also evident in the historic lack of enriching captive environments...

  5. Emotional contagion in dogs as measured by change in cognitive task performance

    | Contributor(s):: Sümegi, Zsófia, Oláh, Katalin, Topál, József

    Domestic dogs are living with humans in a very special inter-species relationship. Previous studies have shown physiological and hormonal synchronisation between dogs and their owners during positive interaction. Dogs are also known to be able to discriminate human emotions and they were also...

  6. The emergence of emotional lateralization: Evidence in non-human vertebrates and implications for farm animals

    | Contributor(s):: Leliveld, Lisette M. C., Langbein, Jan, Puppe, Birger

    The study and protection of animal welfare are based on the assumption that animals are sentient beings, capable of experiencing emotions. Still, our understanding of animal emotions is limited. In this review we focus on the potential of cerebral-lateralization research to provide new insights...

  7. Effects of signalled reward type, food status and a μ-opioid receptor antagonist on cue-induced anticipatory behaviour in laying hens (Gallus domesticus)

    | Contributor(s):: Moe, Randi Oppermann, Nordgreen, Janicke, Janczak, Andrew M., Spruijt, Berry M., Bakken, Morten

    Studies using classical conditioning have shown that hens display high frequencies of dopamine-controlled cue-induced anticipatory behaviours in the cue-reward interval when signalling mealworm rewards. However, it is not known whether anticipatory behaviours are reward specific, and whether the...

  8. Disrupting motivational sequences in chicks: Are there affective consequences?

    | Contributor(s):: Seehuus, Birgitte, Mendl, Mike, Keeling, Linda J., Blokhuis, Harry

    The ‘reward cycle’ conceptualises reward acquisition as a cyclic phenomenon divided into three motivational stages with related emotional or affective states. For feeding behaviour such a cycle consists of an appetitive stage characterised by foraging and exploration linked to emotions such as...

  9. Chronic stress induces pessimistic-like judgment and learning deficits in sheep

    | Contributor(s):: Destrez, Alexandra, Deiss, Véronique, Lévy, Frédéric, Calandreau, Ludovic, Lee, Caroline, Chaillou-Sagon, Elodie, Boissy, Alain

    Chronic stress can be described as a long-term negative affective state induced by an accumulation of negative emotional experiences that alters an individual's interactions with the environment. In humans, chronic stress induces both persistent judgment biases and learning deficits. We...

  10. Can ear postures reliably measure the positive emotional state of cows?

    | Contributor(s):: Proctor, Helen S., Carder, Gemma

    Animal welfare science is increasingly concerned with the promotion of positive emotions in animals, yet little is known about how to measure them. We examined whether ear postures in dairy cows were reliable indicators of a low arousal, positive emotional state. We conducted a total of 381,...

  11. Behaviour of horses in a judgment bias test associated with positive or negative reinforcement

    Full-text: Available

    | Contributor(s):: Briefer Freymond, Sabrina, Briefer, Elodie F., Zollinger, Anja, Gindrat-von Allmen, Yveline, Wyss, Christa, Bachmann, Iris

    Moods can influence our judgment of ambiguous stimuli as positive or negative. Measuring judgment bias in animals is a promising method to objectively assess their emotional states. Our study aimed to develop a cognitive bias test in horses, in order to assess the effect of training using...

  12. Social dimension of emotions and its implication for animal welfare

    | Contributor(s):: Špinka, Marek

    Animal emotions are central to the concept of animal welfare. So far, emotions have been investigated in animal welfare science as within-individual phenomena, i.e. coordinating mechanisms that guide the animal to take appropriate action. However, emotions include an important social dimension....

  13. Measuring empathic responses in animals

    | Contributor(s):: Edgar, J. L., Nicol, C. J., Clark, C. C. A., Paul, E. S.

    Domestic animals may be frequently exposed to situations in which they witness the distress or pain of conspecifics and the extent to which they are affected by this will depend on their capacity for empathy. Empathy encompasses two partially distinct sets of processes concerned with the...

  14. Housing induced mood modulates reactions to emotional stimuli in sheep

    | Contributor(s):: Reefmann, Nadine, Muehlemann, Thomas, Wechsler, Beat, Gygax, Lorenz

    The assessment of positive and negative short-term affective states (emotions) in animals and their modulation by long-term affective states (mood) is an on-going challenge. This study investigated the use of behavioural and physiological measures to assess emotions and their modulation by mood...

  15. Environmental enrichment induces optimistic cognitive biases in pigs

    | Contributor(s):: Douglas, Catherine, Bateson, Melissa, Walsh, Clare, Bédué, Anaïs, Edwards, Sandra A.

    The objective assessment of affective (emotional) state in farm livestock, especially positive states, poses a significant challenge. In human psychology, there is evidence that affective state can alter cognition, with more positive states being associated with an increased likelihood of judging...

  16. Do pigs distinguish between situations of different emotional valences during anticipation?

    | Contributor(s):: Imfeld-Mueller, Sabrina, Van Wezemael, Lea, Stauffacher, Markus, Gygax, Lorenz, Hillmann, Edna

    An animal's welfare is strongly affected by its emotional state. Thus, many recent studies have focused on measuring the emotional states and responses of animals. However, there is still a lack of knowledge on assessing positive emotions, although it is widely accepted that positive emotions are...

  17. Do children understand man's best friend? Classification of dog barks by pre-adolescents and adults

    | Contributor(s):: Pongrácz, Péter, Molnár, Csaba, Dóka, Antal, Miklósi, Ádám

    Play back experiments compared the ability of children (aged 6, 8, and 10 years) and adults to discriminate dog barks recorded in three different contexts. Participants had to categorize barks according to recording context, and to characterize the inner states of dogs by relating barks to facial...

  18. Cognitive bias and anticipatory behaviour of laying hens housed in basic and enriched pens

    | Contributor(s):: Wichman, Anette, Keeling, Linda J., Forkman, Björn

    The performances of adult laying hens, housed in either a basic or an enriched pen, were investigated in a cognitive bias and an anticipation test. Both tests were designed to measure the assumed emotional state of the birds. The behaviour of birds in each test was compared to see whether both...

  19. Behavioural fear and heart rate responses of horses after exposure to novel objects: Effects of habituation

    | Contributor(s):: Leiner, Lisa, Fendt, Markus

    The emotion fear promotes the fitness of wild animals. In a farm environment, exaggerated fear, e.g., in horses, can cause several problems. Therefore, knowledge about fear in horses helps to prevent or to handle potential fear-inducing situations. The present study investigated which behavioural...

  20. Adolescents' Affective and Physiological Regulation Shape Negative Behavior During Challenging Equine Assisted Learning Activities

    Full-text: Available

    | Contributor(s):: Patricia Pendry, Alexa M. Carr, Jaymie L. Vandagriff

    This study examined associations between adolescents’ (N = 59; M age = 11.63) diurnal and momentary activity of the Hypothalamic Pituitary Adrenal (HPA) axis as marked by salivary cortisol, and affective and behavioral responses to their first, mounted equine assisted learning (EAL)...