Analyze Diet

Topic:Emotions

The study of emotions in horses involves understanding the behavioral, physiological, and psychological responses of horses to various stimuli. Emotions in horses can be inferred through observable behaviors, such as vocalizations, body language, and interactions with their environment and other animals. Physiological indicators, including heart rate, cortisol levels, and other stress-related biomarkers, are also used to assess emotional states. This research area explores how emotions affect horse welfare, training outcomes, and human-animal interactions. This page compiles peer-reviewed research studies and scholarly articles that examine the identification, measurement, and implications of emotional states in horses.
Influence of exercise and emotional stresses on secretion of prolactin and growth hormone in Thoroughbred horses.
Journal of equine science    June 18, 2021   Volume 32, Issue 2 49-53 doi: 10.1294/jes.32.49
Kitaura T, Sato F, Hada T, Ishimaru M, Kodama R, Nambo Y, Watanabe G, Taya K.The secretion of prolactin and growth hormone in response to exercise and emotional stresses was investigated in Thoroughbreds. Two experiments were performed: one with loading of only exercise stress and one with simultaneous loading of exercise and emotional stresses. Exercise stress was loaded in 4 steps using a treadmill for horses: pre-exercise period (5 min), walking period (6.5 min), galloping period (3 min), and cooling down period (10 min). Emotional stress was loaded by showing a loud video of an audience at a racetrack during the walking period. The results clearly demonstrated that...
Attitudes of the Equestrian Public towards Equine End-of-Life Decisions.
Animals : an open access journal from MDPI    June 14, 2021   Volume 11, Issue 6 1776 doi: 10.3390/ani11061776
Bell C, Rogers S.A key welfare concern for the equine population in the U.K. has been identified as delayed death, leading to prolonged suffering of horses. Reasons why some horse owners fail to have their horses euthanised include financial cost, emotional attachment, peer pressure, negative attitudes towards killing and poor recognition of behavioural indicators of equine pain and stress. The Five Freedoms framework of welfare was used to build a Likert-style survey to investigate the factors underlying attitudes of horse owners towards welfare measures in an end-of-life decision. Participants were asked to ...
Towards Machine Recognition of Facial Expressions of Pain in Horses.
Animals : an open access journal from MDPI    June 1, 2021   Volume 11, Issue 6 1643 doi: 10.3390/ani11061643
Andersen PH, Broomé S, Rashid M, Lundblad J, Ask K, Li Z, Hernlund E, Rhodin M, Kjellström H.Automated recognition of human facial expressions of pain and emotions is to a certain degree a solved problem, using approaches based on computer vision and machine learning. However, the application of such methods to horses has proven difficult. Major barriers are the lack of sufficiently large, annotated databases for horses and difficulties in obtaining correct classifications of pain because horses are non-verbal. This review describes our work to overcome these barriers, using two different approaches. One involves the use of a manual, but relatively objective, classification system for...
Behavioral and cardiac responses in mature horses exposed to a novel object.
Journal of animal science and technology    May 31, 2021   Volume 63, Issue 3 651-661 doi: 10.5187/jast.2021.e51
Lee KE, Kim JG, Lee H, Kim BS.This study aimed to investigate whether breed, sex, and age affected temperament differently (more or less neophobic) in mature horses during a novel object test. The study included Jeju crossbred (n = 12, age = 9.42 ± 4.57 y), Thoroughbred (n = 15, age = 10.73 ± 3.09 y), and Warmblood horses (n = 12, age = 13.08 ± 3.55 y) with the females (n = 22, age = 11.36 ± 4.24 y) and geldings (n = 17, age = 10.65 ± 3.66 y). Jeju crossbreds (Jeju horse × Thoroughbred) are valuable considering their popular usage in Korea, but limited studies have explored temperament of Jeju crossbred horses. A tra...
Enhanced Understanding of Horse-Human Interactions to Optimize Welfare.
Animals : an open access journal from MDPI    May 9, 2021   Volume 11, Issue 5 1347 doi: 10.3390/ani11051347
Merkies K, Franzin O.Horses () have been domesticated for millennia and are regularly utilized for work, sport, and companionship. Enhanced understanding of human-horse interactions can create avenues to optimize their welfare. This review explores the current research surrounding many aspects of human-horse interactions by first highlighting the horse's sensory capabilities and how they pertain to human interactions. Evidence exists that suggests that horses can read humans in various ways through our body odours, posture, facial expressions, and attentiveness. The literature also suggests that horses are capable...
Personal Reflections.
Journal of equine veterinary science    April 8, 2021   Volume 100 103615 doi: 10.1016/j.jevs.2021.103615
Harris P, Burk A, Staniar B.No abstract available
Horse Preferences for Insolation, Shade or Mist Curtain in the Paddock under Heat Conditions: Cardiac and Behavioural Response Analysis.
Animals : an open access journal from MDPI    March 25, 2021   Volume 11, Issue 4 933 doi: 10.3390/ani11040933
Janczarek I, Stachurska A, Wilk I, Wiśniewska A, Różańska-Boczula M, Kaczmarek B, Łuszczyński J, Kędzierski W.The horse's welfare and, consequently, the emotional arousal may be connected with stressful environmental conditions. This study aimed to determine whether horses show behavioural or physiological symptoms of thermal discomfort and if their behaviour and cardiac parameters are related to freely chosen insolated (IS), shaded (SH), or water sprayed (with a mist curtain (MC)) areas in a paddock under heat conditions (29-32 °C, 42.0 ± 1.5% humidity). Twelve adult horses freely moving in the paddock were studied during a 45 min solitary turnout. Six cardiac variables, locomotor, and non-locomoto...
Qualitative study of the influence of horse-owner relationship during some key events within a horse’s lifetime.
The Veterinary record    January 28, 2021   Volume 188, Issue 6 e79 doi: 10.1002/vetr.79
Clough H, Roshier M, England G, Burford J, Freeman S.There is a lack of research exploring how the horse-human relationship influences horse owners' decision-making. The aim of this study was to investigate how an owner's relationship with their horse affects decisions around key events during their horse's lifetime. An online survey and semi-structured telephone interviews were conducted with horse-owners. The online survey asked horse owners about their experiences of decision-making and their relationship with their horse and identified interview participants. Two semi-structured interviews were conducted with 11 horse owners on their experie...
Exploratory behaviour towards novel objects is associated with enhanced learning in young horses.
Scientific reports    January 14, 2021   Volume 11, Issue 1 1428 doi: 10.1038/s41598-020-80833-w
Christensen JW, Ahrendt LP, Malmkvist J, Nicol C.The mechanisms underlying individual variation in learning are key to understanding the development of cognitive abilities. In humans and primates, curiosity has been suggested as an important intrinsic factor that enhances learning, whereas in domesticated species research has primarily identified factors with a negative effect on cognitive abilities, such as stress and fearfulness. This study presents the first evidence of a link between object-directed curiosity and learning performance in young horses in two very different learning tasks (visual discrimination and pressure-release). We exp...
Heart rate variability in Konik and purebred Arabian horses in response to different predator vocalisations.
Animal : an international journal of animal bioscience    December 14, 2020   Volume 15, Issue 1 100045 doi: 10.1016/j.animal.2020.100045
Janczarek I, Stachurska A, Kędzierski W, Pawlak EW, Wilk I, Zyglewska K, Paszkowska A, Ryżak M, Wiśniewska A.The current predation threat of domestic horses is generally low, and horses do not know predators' frightening cues. We studied whether horses still recognise predation threats. The aim of the study was to analyse the emotional response of purebred Arabian horses (Arabian) and Polish Konik horses (Konik) to an Arabian panther (Panthera pardus nimr) (panther) growl and a grey wolf (Canis lupus) (wolf) howl. Panther vocalisation was known to Arabian ancestors, whereas ancestors of Konik knew wolf vocalisation. The response to the howls of golden jackals (Canis aureus) (jackal), which did not pr...
Blink rate as a measure of stress and attention in the domestic horse (Equus caballus).
Scientific reports    December 8, 2020   Volume 10, Issue 1 21409 doi: 10.1038/s41598-020-78386-z
Mott RO, Hawthorne SJ, McBride SD.Measuring animal stress is fundamentally important for assessing animal emotional state and welfare. Conventional methods of quantifying stress (cortisol levels, heart rate/heart rate variability) require specialist equipment and are not instantly available. Spontaneous blink rate (SBR) has previously been used to measure stress responses in humans and may provide a non-invasive method for measuring stress in other animal species. Here we investigated the use of SBR as a measure of stress in the domestic horse. SBR was measured before and during a low-stress event (sham clipping) and compared ...
Inside the Interaction: Contact With Familiar Humans Modulates Heart Rate Variability in Horses.
Frontiers in veterinary science    November 30, 2020   Volume 7 582759 doi: 10.3389/fvets.2020.582759
A human-animal relationship can be developed through subsequent interactions, affected by the positive or negative emotional valence of the proceeding one. Horses implement a process of categorization to classify humans with whom they interact as positive, negative, or neutral stimuli by evaluating the kind of approach and the nature of the contact. In these terms, human-animal interactions are emotionally charged events, eliciting specific emotional states in both subjects involved. Although the human-horse relationship has been mainly investigated through behavioral analysis, physiological i...
Horse-Riding Competitions Pre and Post COVID-19: Effect of Anxiety, sRPE and HR on Performance in Eventing.
International journal of environmental research and public health    November 21, 2020   Volume 17, Issue 22 doi: 10.3390/ijerph17228648
Demarie S, Galvani C, Billat VL.The aim of the present study was to quantify the impact of training restrictions, due to COVID-19 sanitary emergency, on physical and emotional strain of horse-riding Eventing competitions before and after eight weeks of lockdown. Performance was assessed by the penalty points attained, anxiety by the Competitive State Anxiety Inventory-2, strain by the Rating of Perceived Exertion (RPE) method. Moreover, Heart Rate was continuously monitored for fifty-four female national level Eventing horse-riders. Lockdown decreased performance outcome of horse-riders in Eventing competitions up to six wee...
Equine-assisted biographical work (EABW) with individuals in the second half of life: study protocol of a multicentre randomised controlled trial.
Trials    October 15, 2020   Volume 21, Issue 1 857 doi: 10.1186/s13063-020-04784-3
Schmidt J, Wartenberg-Demand A, Forstmeier S.Equine-assisted therapy is more often practiced with children and adolescents than with the elderly, although individuals in the second half of life could also profit from it. This group, from the age of 50, is characterised by increasing emotional, social, health-related and cognitive changes; a critical life event, such as a neurological illness or loss of a family member, can increase the likelihood of subclinical depression. Individuals who exhibit depressive symptoms not necessarily diagnosed with a major depression may suffer from relevant losses of quality of life (e.g. sleep disorders,...
The Potential of Human-Horse Attachment in Creating Favorable Settings for Professional Care: A Study of Adolescents’ Visit to a Farm.
Animals : an open access journal from MDPI    September 21, 2020   Volume 10, Issue 9 1707 doi: 10.3390/ani10091707
Törmälehto E, Korkiamäki R.Previous research has shown features of an attachment bond to be fulfilled in, for instance, human-dog dyads; however, there is a considerable lack of research on the potential attachment in human-horse relationships. Employing Bowlby's criteria of an attachment bond and Pierce's model of therapeutically powerful activity, this article studies whether short-term exposure to horses brings about elements of emerging attachment for adolescents and if this interaction holds potential in creating a favorable early-stage setting for professional care. It draws from group discussions carried out with...
Human Face Recognition in Horses: Data in Favor of a Holistic Process.
Frontiers in psychology    September 15, 2020   Volume 11 575808 doi: 10.3389/fpsyg.2020.575808
Lansade L, Colson V, Parias C, Reigner F, Bertin A, Calandreau L.Recent studies have demonstrated that horses can recognize humans based simply on visual information. However, none of these studies have investigated whether this involves the recognition of the face itself, or simply identifying people from non-complex external clues, such as hair color. To go beyond this we wanted to know whether certain features of the face were indispensable for this recognition (e.g., colors, hair or eyes). The 11 horses in this study had previously learned to identify four unfamiliar faces (portrait view and in color) presented repeatedly on a screen. We thus assessed w...
Assessing discourses about controversial environmental management issues on social media: Tweeting about wild horses in a national park.
Journal of environmental management    August 22, 2020   Volume 275 111244 doi: 10.1016/j.jenvman.2020.111244
Pickering CM, Norman P.Public participation is critical for planning and management of protected areas. With people increasingly using social media, including Twitter, to obtain news and express opinions, park agencies should recognize the utility of monitoring and engaging with this public discourse. We used a conservation culturomics approach to analyse Tweets during a period of controversy about the management of large mammals (horses) in a park (Kosciuszko National Park in Australia), including examining who talked about what, when and what emotions were expressed. An automated programming interface was used to ...
Effect of Human Attachment Style on Horse Behaviour and Physiology during Equine-Assisted Activities-A Pilot Study.
Animals : an open access journal from MDPI    July 8, 2020   Volume 10, Issue 7 1156 doi: 10.3390/ani10071156
Arrazola A, Merkies K.Equine-assisted activities (EAA) for human well-being and health rely on human-horse interactions for therapeutic effect. At-risk participants with mental and emotional difficulties can show poor social skills and functioning relationships, potentially leading to unsuccessful human-horse interaction in EAA. This study addresses the effect of the attachment style (AS) of at-risk adolescents on horse physiology and behaviour during an equine-facilitated learning (EFL) program. Thirty-three adolescents participated in a 10-week EFL program with nine therapy horses (the same therapy horse per adol...
Donkey Therapy and Hippotherapy: Two Faces of the Same Coin?
Innovations in clinical neuroscience    June 18, 2020   Volume 17, Issue 1-3 20-21 
Animal-assisted interventions are considered an innovative rehabilitation approach to improve social, emotional, and physical domains in several diseases. Among such treatments, the equine-assisted activities and therapies have been developed to support the conventional approaches. There is growing evidence on the beneficial effects of hippotherapy, whereas few data are available regarding donkey therapy. Herein, we compare such treatments, hypothesizing their best application field to reach the proper therapeutic outcomes.
Horse Behavior, Physiology and Emotions during Habituation to a Treadmill.
Animals : an open access journal from MDPI    May 26, 2020   Volume 10, Issue 6 921 doi: 10.3390/ani10060921
Masko M, Domino M, Lewczuk D, Jasinski T, Gajewski Z.A treadmill is an important tool in the equine analysis of gait, lameness, and hoof balance, as well as for the evaluation of horse rehabilitation or poor performance including dynamic endoscopy. Before all of these uses, horses have to be habituated to a treadmill locomotion. We used principal component analysis to evaluate the relationship between aspects of the horse's temperament and emotional response, and progress in the behavioral habituation to a treadmill. Fourteen horses were tested, by the same familiar handler, using the novel object test, the handling test, and both positive and n...
EEG based assessment of stress in horses: a pilot study.
PeerJ    May 12, 2020   Volume 8 e8629 doi: 10.7717/peerj.8629
de Camp NV, Ladwig-Wiegard M, Geitner CIE, Bergeler J, Thöne-Reineke C.As has been hypothesized more than 20 years ago, data derived from Electroencephalography (EEG) measurements can be used to distinguish between behavioral states associated with animal welfare. In our current study we found a high degree of correlation between the modulation index of phase related amplitude changes in the EEG of horses ( = 6 measurements with three different horses, mare and gelding) and their facial expression, measured by the use of the horse grimace scale. Furthermore, the pattern of phase amplitude coupling (PAC) was significantly different between a rest condition and a s...
Does Thirty-Minute Standardised Training Improve the Inter-Observer Reliability of the Horse Grimace Scale (HGS)? A Case Study.
Animals : an open access journal from MDPI    April 30, 2020   Volume 10, Issue 5 781 doi: 10.3390/ani10050781
Dai F, Leach M, MacRae AM, Minero M, Costa ED.The Horse Grimace Scale (HGS) is a facial-expression-based pain coding system that enables a range of acute painful conditions in horses to be effectively identified. Using valid assessment methods to identify pain in horses is of a clear importance; however, the reliability of the assessment is highly dependent on the assessors' ability to use it. Training of new assessors plays a critical role in underpinning reliability. The aim of the study was to evaluate whether a 30-minute standardised training program on HGS is effective at improving the agreement between observers with no horse experi...
Aging Equines: Understanding the Experience of Caring for a Geriatric Horse with a Chronic Condition.
Journal of equine veterinary science    March 25, 2020   Volume 90 102993 doi: 10.1016/j.jevs.2020.102993
Ballou ME, Mueller MK, Dowling-Guyer S.This study evaluated the experience of 1,448 people in the United States who currently care for or had previously cared for a geriatric horse and how that experience was qualified by the presence or absence of a chronic condition in the horse. An anonymous, online questionnaire was distributed to a cross-country sample to investigate the burden of caregivers from the perspective of owners of geriatric horses. Traumatic events and veterinary care decisions were also explored. Findings from the study supported the hypothesis that owners of geriatric horses with a chronic condition experienced hi...
Horses feel emotions when they watch positive and negative horse-human interactions in a video and transpose what they saw to real life.
Animal cognition    March 11, 2020   Volume 23, Issue 4 643-653 doi: 10.1007/s10071-020-01369-0
Trösch M, Pellon S, Cuzol F, Parias C, Nowak R, Calandreau L, Lansade L.Animals can indirectly gather meaningful information about other individuals by eavesdropping on their third-party interactions. In particular, eavesdropping can be used to indirectly attribute a negative or positive valence to an individual and to adjust one's future behavior towards that individual. Few studies have focused on this ability in nonhuman animals, especially in nonprimate species. Here, we investigated this ability for the first time in domestic horses (Equus caballus) by projecting videos of positive and negative interactions between an unknown human experimenter (a "positive" ...
Levelling playing field: synchronization and rapid facial mimicry in dog-horse play.
Behavioural processes    March 7, 2020   Volume 174 104104 doi: 10.1016/j.beproc.2020.104104
Maglieri V, Bigozzi F, Riccobono MG, Palagi E.Social play is a window on cognitive and communicative abilities of species. Inter-specific play, in particular, is a fertile venue to explore the capacity to correctly perceive and interpret signals emitted by partners. Up to now, most studies have focussed on dog-human play due to the important implications such studies have in understanding the peculiar relationship we establish with our pets. Here, we focussed on social play between dogs and horses. By using a set of specific keywords (dog, horse, play, friend) we selected 20 videos of dog-horse social play (with each session lasting >3...
Measuring the evolution of facial ‘expression’ using multi-species FACS.
Neuroscience and biobehavioral reviews    February 24, 2020   Volume 113 1-11 doi: 10.1016/j.neubiorev.2020.02.031
Waller BM, Julle-Daniere E, Micheletta J.Darwin observed that form, and in his view, meaning, of facial behaviour (observable changes in the appearance of the face, often termed facial 'expression') is similar between a wide range of species and concluded that this must be due to a shared ancestral origin. Yet, as with all social behaviours, exactly how to define similarity and determine homology is debated. Facial behaviour is linked to specific facial muscle movements, so one important factor in determining homology is the anatomical basis of facial behaviours that appear similar in both appearance and social function. The Facial A...
How does the expressiveness of leaders affect followership in domestic horses (Equus ferus caballus)?
Animal cognition    February 17, 2020   Volume 23, Issue 3 559-569 doi: 10.1007/s10071-020-01361-8
Gérard C, Valenchon M, Poulin N, Petit O.In collective movements, some individuals are more effective and attractive leaders than others. Parameters such as social network, personality, and physiologic needs failed to explain why group members follow one leader more than another. In this study in the domestic horse, we propose to focus on the leader's attitude and its impact to the followers' recruitment during two conditions: spontaneous group departures or experimentally induced departures. We postulate that the expressiveness of the leader could enhance its attractiveness and thus produce a successful followership. We found that a...
Indicators of Horse Welfare: State-of-the-Art.
Animals : an open access journal from MDPI    February 13, 2020   Volume 10, Issue 2 294 doi: 10.3390/ani10020294
Lesimple C.Animal welfare is defined as a chronic state reflecting an individual's subjective perception of its situation. Because it is possible to be in a good welfare state and nevertheless experience acute fear or pain, and conversely, short-term positive emotions can be experienced during impaired welfare states, welfare as a chronic state has to be clearly distinguished from temporary states related to emotions, pain or stress. The evaluation of non-verbal individuals' welfare state, particularly in interspecific situations, is a real challenge that necessarily implies animal-based measures and req...
Acceptability of an adjunct equine-assisted activities and therapies program for veterans with posttraumatic stress disorder and/or traumatic brain injury.
Journal of integrative medicine    January 21, 2020   Volume 18, Issue 2 169-173 doi: 10.1016/j.joim.2020.01.005
Sylvia L, West E, Blackburn AM, Gupta C, Bui E, Mahoney T, Duncan G, Wright EC, Lejeune S, Spencer TJ.Equine-assisted activities and therapies (EAATs) have been a growing adjunctive integrative health modality, as they allow participants to practice mindfulness, emotional regulation, and self-mastery or self-esteem building skills. Preliminary evidence suggests that these programs may be helpful in reducing posttraumatic stress disorder (PTSD), anxiety, and depressive symptoms. The current study examines the acceptability of integrating an EAAT program as part of a two-week, intensive clinical program for veterans with PTSD and/or traumatic brain injury (TBI). Methods: A family member or suppo...
Social Referencing in the Domestic Horse.
Animals : an open access journal from MDPI    January 18, 2020   Volume 10, Issue 1 164 doi: 10.3390/ani10010164
Schrimpf A, Single MS, Nawroth C.Dogs and cats use human emotional information directed to an unfamiliar situation to guide their behavior, known as social referencing. It is not clear whether other domestic species show similar socio-cognitive abilities in interacting with humans. We investigated whether horses ( = 46) use human emotional information to adjust their behavior to a novel object and whether the behavior of horses differed depending on breed type. Horses were randomly assigned to one of two groups: an experimenter positioned in the middle of a test arena directed gaze and voice towards the novel object with eith...
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