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Author De Boyer Des Roches, A.; Richard-Yris, M.-A.; Henry, S.; Ezzaouia, M.; Hausberger, M.
Title Laterality and emotions: visual laterality in the domestic horse (Equus caballus) differs with objects' emotional value Type Journal Article
Year 2008 Publication (down) Physiology & Behavior Abbreviated Journal Physiol. Behav.
Volume 94 Issue 3 Pages 487-490
Keywords Animals; Animals, Newborn; Behavior, Animal/physiology; Dominance, Ocular/*physiology; *Emotions; Exploratory Behavior/physiology; Female; Horses/*physiology; Olfactory Pathways/physiology; Pattern Recognition, Visual/*physiology; Photic Stimulation; Pregnancy; Statistics, Nonparametric; Visual Fields/physiology
Abstract Lateralization of emotions has received great attention in the last decades, both in humans and animals, but little interest has been given to side bias in perceptual processing. Here, we investigated the influence of the emotional valence of stimuli on visual and olfactory explorations by horses, a large mammalian species with two large monocular visual fields and almost complete decussation of optic fibres. We confronted 38 Arab mares to three objects with either a positive, negative or neutral emotional valence (novel object). The results revealed a gradient of exploration of the 3 objects according to their emotional value and a clear asymmetry in visual exploration. When exploring the novel object, mares used preferentially their right eyes, while they showed a slight tendency to use their left eyes for the negative object. No asymmetry was evidenced for the object with the positive valence. A trend for an asymmetry in olfactory investigation was also observed. Our data confirm the role of the left hemisphere in assessing novelty in horses like in many vertebrate species and the possible role of the right hemisphere in processing negative emotional responses. Our findings also suggest the importance of both hemispheres in the processing positive emotions. This study is, to our knowledge, the first to demonstrate clearly that the emotional valence of a stimulus induces a specific visual lateralization pattern.
Address UMR CNRS 6552 Ethologie-Evolution-Ecologie, Universite de Rennes 1, Avenue du General Leclerc, Campus de Beaulieu, F-35042 Rennes Cedex, France. a.de-boyer@wanadoo.fr
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Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0031-9384 ISBN Medium
Area Expedition Conference
Notes PMID:18455205 Approved no
Call Number Equine Behaviour @ team @ Serial 4762
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Author Fabbri-Destro, M.; Rizzolatti, G.
Title Mirror Neurons and Mirror Systems in Monkeys and Humans Type Journal Article
Year 2008 Publication (down) Physiology Abbreviated Journal Physiology
Volume 23 Issue 3 Pages 171-179
Keywords
Abstract Mirror neurons are a distinct class of neurons that transform specific sensory information into a motor format. Mirror neurons have been originally discovered in the premotor and parietal cortex of the monkey. Subsequent neurophysiological (TMS, EEG, MEG) and brain imaging studies have shown that a mirror mechanism is also present in humans. According to its anatomical locations, mirror mechanism plays a role in action and intention understanding, imitation, speech, and emotion feeling.
Address
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Notes 10.1152/physiol.00004.2008 Approved no
Call Number Equine Behaviour @ team @ Serial 5014
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Author Baumgartner, T.; Heinrichs, M.; Vonlanthen, A.; Fischbacher, U.; Fehr, E.
Title Oxytocin Shapes the Neural Circuitry of Trust and Trust Adaptation in Humans Type Abstract
Year 2008 Publication (down) Neuron Abbreviated Journal Neuron
Volume 58 Issue 4 Pages 639-650
Keywords Sysneuro; Sysbio
Abstract Trust and betrayal of trust are ubiquitous in human societies. Recent behavioral evidence shows that the neuropeptide oxytocin increases trust among humans, thus offering a unique chance of gaining a deeper understanding of the neural mechanisms underlying trust and the adaptation to breach of trust. We examined the neural circuitry of trusting behavior by combining the intranasal, double-blind, administration of oxytocin with fMRI. We find that subjects in the oxytocin group show no change in their trusting behavior after they learned that their trust had been breached several times while subjects receiving placebo decrease their trust. This difference in trust adaptation is associated with a specific reduction in activation in the amygdala, the midbrain regions, and the dorsal striatum in subjects receiving oxytocin, suggesting that neural systems mediating fear processing (amygdala and midbrain regions) and behavioral adaptations to feedback information (dorsal striatum) modulate oxytocin's effect on trust. These findings may help to develop deeper insights into mental disorders such as social phobia and autism, which are characterized by persistent fear or avoidance of social interactions.
Address
Corporate Author Thesis
Publisher Cell Press, Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0896-6273 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ S0896-6273(08)00327-9 DOI - 10.1016/j.neuron.2008.04.009 Serial 5647
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Author Prather, J.F.; Peters, S.; Nowicki, S.; Mooney, R.
Title Precise auditory-vocal mirroring in neurons for learned vocal communication Type Journal Article
Year 2008 Publication (down) Nature Abbreviated Journal Nature
Volume 451 Issue 7176 Pages 305-310
Keywords
Abstract Brain mechanisms for communication must establish a correspondence between sensory and motor codes used to represent

the signal. One idea is that this correspondence is established at the level of single neurons that are active when the

individual performs a particular gesture or observes a similar gesture performed by another individual. Although neurons

that display a precise auditory–vocal correspondence could facilitate vocal communication, they have yet to be identified.

Here we report that a certain class of neurons in the swamp sparrow forebrain displays a precise auditory–vocal

correspondence. We show that these neurons respond in a temporally precise fashion to auditory presentation of certain

note sequences in this songbird’s repertoire and to similar note sequences in other birds’ songs. These neurons display

nearly identical patterns of activity when the bird sings the same sequence, and disrupting auditory feedback does not alter

this singing-related activity, indicating it is motor in nature. Furthermore, these neurons innervate striatal structures

important for song learning, raising the possibility that singing-related activity in these cells is compared to auditory

feedback to guide vocal learning.
Address
Corporate Author Thesis
Publisher Nature Publishing Group Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0028-0836 ISBN Medium
Area Expedition Conference
Notes 10.1038/nature06492 Approved no
Call Number Equine Behaviour @ team @ Serial 5062
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Author Puppe, B.; Langbein, J.; Bauer, J.; Hoy, S.
Title A comparative view on social hierarchy formation at different stages of pig production using sociometric measures Type Journal Article
Year 2008 Publication (down) Livestock Science Abbreviated Journal
Volume 113 Issue 2-3 Pages 155-162
Keywords Pig; Dominance; Sociometric measures; Social hierarchy; Ontogeny
Abstract A standardised and comprehensive approach to describe dominance relationships in gregarious farm animals quantitatively was recently developed, incorporating a combination of appropriate sociometric measures. The present study applied this approach to a comparative analysis of the social hierarchies within 57 groups of domestic pigs at different age/production stages with a total of 496 animals. Unacquainted pigs were grouped to three age categories which correspond to the typical production stages: weaned pigs (PIG28, 12 groups), growing pigs (PIG80, 16 groups), and reproductive sows (SOW, 29 groups). Based on observed agonistic interactions, sociometric values were calculated both at the dyadic and at the group level and may be considered as preliminary reference values for further studies. As indicated by the respective values of the Kendall index (PIG28: 0.66, tested as significant in 69.0% of the observed groups; PIG80: 0.71, 87.5%; SOW: 0.61, 69.0%), and the improved Landau index (PIG28: 0.70, 75.0%; PIG80: 0.72, 93.7%; SOW: 0.71, 72.4%), a social organisation towards a quasi-linear social hierarchy was predominantly developed throughout all age/production categories. However, compared to weaned and growing pigs, sows were characterised by significant differences concerning establishment (fewer agonistic interactions) and kind (more unknown dyads, fewer two-way and significant dyads, higher directional consistency index) of their social hierarchy. It seems that sows have effectively adapted their agonistic behaviour towards pen-mates to regulate social dominance relationships, whereas younger pigs frequently display agonistic interactions also to gain additional experience on social cues (e.g. the fighting ability of an opponent). Hence, it is concluded that the effective experience of socialisation during sensitive periods may increase the social skills of pigs which in turn can improve their welfare and health, e.g. by adjusted aggressive behaviour. The consideration of comparable and standardised sociometric measures in livestock breeding may help to improve husbandry conditions.
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Notes Approved no
Call Number Serial 2139
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Author Dubois, C.; Manfredi, E.; Ricard, A.
Title Optimization of breeding schemes for sport horses Type Journal Article
Year 2008 Publication (down) Livestock Science Abbreviated Journal
Volume 118 Issue 1-2 Pages 99-112
Keywords Breeding scheme; Horse; Jumping; Optimization; Genetic trend, Multistage selection
Abstract A selection scheme for jumping sport horses is modelled with four stages of selection for males and one stage for females. The selection objective included three traits: conformation and gaits (CG, weighted 20%), competition jumping (CJ, weighted 60%) and a third trait (TT, weighted 20%) such as sperm quality or orthopaedic status. The first selection stage is based on knowledge of the pedigree with the aim of selecting horses suitable for CG test (at 3 years old) and CJ test (at 5 years old). The second stage includes the horse's own performance with respect to CG and CJ with the aim of selecting horses suitable for the TT test. The third stage is the selection of a limited number of males who are allowed to reproduce. The fourth stage (at 12 years old) takes into account the results of the horse's progeny. Females are selected in one step, whatever the number of performances measured at 5 years old. The annual genetic response was 9.4% genetic standard deviation of the objective, 2.6% for CG, 9.0% for CJ and 1.5% for TT. Results showed that selection by progeny testing did not contribute much to genetic response (12% of progeny issued from proven sires), the female pathway represented 26% of genetic response, TT was difficult to improve when the genetic correlation was unfavourable (- 0.6% genetic standard deviation for - 0.20 genetic correlation), and should consequently be directed towards the use of molecular markers. When compared with a selection scheme involving a station test, genetic response was the same if the breeding values used for selection before entering the station test took into account the results of the relatives for CJ and CG. This revealed the importance of an extensive performance test (like for competition performance) when designing breeding schemes for sport horses.
Address
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1871-1413 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4759
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Author Kavar, T.; Dovc, P.
Title Domestication of the horse: Genetic relationships between domestic and wild horses Type Journal Article
Year 2008 Publication (down) Livestock Science Abbreviated Journal
Volume 116 Issue 1-3 Pages 1-14
Keywords Equus caballus; Domestication; Mitochondrial DNA (mtDNA); Y chromosome markers
Abstract To date, a large amount of equine genetic data has been obtained regarding (i) extant domestic horses of various breeds from all over the world, (ii) ancient domestic horses, (iii) the extant Przewalski's wild horse, and (iv) the late Pleistocene wild horse from Eurasia and North America. Here, a review of mtDNA and Y chromosome marker analyses is presented in the context of horse domestication. High matrilineal (mtDNA) diversity, which can be found in both extant and ancient (domestic and wild) horses, has suggested that a high number of wild (and tamed) mares were domesticated. Alternatively, Y chromosome marker analysis revealed a single haplotype in all domestic horses analyzed; interestingly even a small population of extant Przewalski's wild horses showed two different Y chromosome haplotypes. It seems that an extreme male population bottleneck occurred due to domestication, while reduction in the female population was only moderate, leaving about 100 distinct haplotypes. For this reason, we speculate that domestication might have started when the appropriate stallion was found or was obtained by selection. Perhaps it had some unusual but special characteristics which could have accelerated the process of domestication. We doubt that only a single Y chromosome haplotype will be found in present-day domestic horses if there are no important differences between the founder stallion/s and the other stallions that were not included in the domestication. In the Eneolithic, tamed and wild mares have probably been spread all over Eurasia, although the number of animals was most likely very low and the populations were limited to a restricted area (e.g., taming centers). Only two subspecies of wild horses (Tarpan and Przewalski's wild horse) have survived up to recently. During the further process of domestication, mares (tamed or wild) were preferentially crossed to stallions having more desirable characteristics. We assume that mares from different regions varied in their morphology due to adaptation to their local environmental conditions. These data might explain rapid expansion of horse populations, as well as their rapid differentiation into various phenotypes during the early phase of domestication.
Address
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1871-1413 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4771
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Author Thiruvenkadan, A.K.; Kandasamy, N.; Panneerselvam, S.
Title Coat colour inheritance in horses Type Journal Article
Year 2008 Publication (down) Livestock Science Abbreviated Journal
Volume 117 Issue 2-3 Pages 109-129
Keywords Horse; Coat colour; Melanogenesis; Genetic control; Molecular genetics
Abstract The colours of the horses have long been a subject of interest to owners and breeders of horses as well as to scientists. Though, the colour of horses has little to do with its performance, it is a primary means of identification and also the first indicator of questionable parentage. Probably the ancestral colour of the horse was a black-based pattern that provided camouflage protection against predators. Horse colours are mostly controlled by genes at 12 different loci. The three basic colours of horses are black, bay and chestnut. The genetic control of the basic colours of horses resides at two genetic loci, namely Extension (E) and Agouti (A) loci. Among the basic colours bay is dominant to black and both are epistatic to chestnut. Dilution of basic colours of horses as a result of four colour dilution genes such as cream dilution, dun, silver dapple and champagne resulted in extensive array of possible colours of horses. The most widespread and familiar of the horse colour dilution gene is the one that produces the golden body colour and are called as palomino or buckskin based on the colour of the points. The grey coat colour is due to the presence of dominant gene (G) at the grey locus. Grey is epistatic to all coat colour genes except white and a grey horse must have at least one grey parent. Roan is due to a dominant gene (Rn) at roan locus and this combines with any base colour to produce the various shades of roan pattern. White coat is due to a single dominant gene (W) and it is epistatic to the genes controlling all other colours. White marking in the face and legs are due to genetic and non-genetic factors. Several genes are involved in producing white markings. During recent years, comparative genomics and whole genome scanning have been used to develop DNA tests for different variety of horse colours. Molecular genetic studies on coat colour in horses helped in identification of the genes and mutation responsible for coat colour variants. In future, this will be applied to breeding programmes to reduce the incidence of diseases and to increase the efficiency of race horse population.
Address
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1871-1413 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4776
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Author Virányi, Zs.; Range, F.; Huber, L.
Title Attentiveness toward others and social learning in domestic dogs. Type Book Chapter
Year 2008 Publication (down) Learning from Animals?: Examining the Nature of Human Uniqueness Abbreviated Journal
Volume Issue Pages 141-154
Keywords
Abstract
Address
Corporate Author Thesis
Publisher Psychology Press Place of Publication New York, NY Editor Röska-hardy,L.S.. ;Neumann-held, E.
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN 978-1-84169-707-9 Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4974
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Author Streit, S.; Zeitler-Feicht, M. H.; Dempfle, L.
Title Gibt es in der Gruppenhaltung von Pferden bei der Abruffütterung am Automaten mehr Auseinandersetzungen als bei der Fütterung in Fressständen? [Keeping horses in groups, are there more confrontations when feeding is done with automatic feeding systems than with feeding stalls?] Type Book Chapter
Year 2008 Publication (down) KTBL-Schriften Abbreviated Journal
Volume 471 Issue Pages
Keywords
Abstract Das Droh- und Meideverhalten von 270 Pferden wurde im Fressbereich von 10 Offenlaufställen

mit Fressständen und 11 Offenlaufställen mit computergesteuerten Abrufstationen

anhand von visuellen kontinuierlichen Direktbeobachtungen erfasst. Diese erfolgten je Betrieb

über einen 24-Stunden-Tag, der nach dem Tortenstückverfahren (6x4 Stunden) zusammengesetzt

war.

Insgesamt wurden 6297 agonistische Verhaltensweisen in, vor und hinter den

Fütterungseinrichtungen registriert (Meiden 40,6 %, Verdrängen 12,8 %, Beißen/ Hinterhandschlag/

Angehen 12,7 % und Drohen/ Drohbeißen/ Hinterhanddrohen 33,9 %). In den

Futterstationen wurden 22,5 % dieses Verhaltens beobachtet, vor und hinter den Futterstationen

77,5 %. Bei den Betrieben mit Fressständen fanden 31 % der agonistischen Verhaltensweisen

in den Ständen statt, bei den Betrieben mit Abruffütterung 21 %.

Der Einfl uss des einzelnen Betriebes (innerhalb Fütterungssystem) auf die agonistischen

Verhaltensweisen vor und hinter den Fütterungseinrichtungen war signifi kant. Die Auswertung

ergab, dass Drohgesten im Wartebereich von Abrufstationen häufi ger auftreten

als in dem von Fressständen. Demgegenüber können Pferde in Abrufstationen ungestörter

fressen. Insgesamt betrachtet war jedoch die Anzahl an sozionegativen Interaktionen im

Bereich der Futtereinrichtungen bei beiden Fütterungssystemen gering. Die agonistischen

Verhaltensweisen wurden zusätzlich noch von der Heumenge und dem Konstitutionstyp

beeinfl usst.

Der Betrieb erwies sich als maßgeblicher Einfl ussfaktor. Als Resümee ergibt sich, dass

bei ordnungsgemäßer Gruppenhaltung mit fachgerechtem Management beide Fütterungssysteme

für Pferde im Offenlaufstall geeignet sind.

[The threatening and avoiding behaviour of 270 horses living in run-out sheds was observed

at 10 stables with feeding stalls and at 11 stables with automatic feeding systems for hay

and concentrates. Every group of horses was observed on five succeeding days visually

and immediately for 6 sessions, each of 4 hours. These 6 slices form together 24 hours, a

complete day.

Altogether, 6297 agonistic behaviour patterns were registered in front of, inside and

behind the feeding stations (avoiding behaviour 40.6 %, edging out of others 12.8 %,

Auseinandersetzungen an automatischer Abruffütterung und Fressständen

KTBL-Schrift 471 79

biting/rear leg kicking/charging 12.7 % und threatening/biting threats/rear leg kicking

threats 33.9 %). 22.5 % of these types of behaviour were recorded in the feeding stations,

77.5 % together in front and behind of these. In the stables with feeding stalls there were

31 % of the observed threatening gestures inside the feeding stations, in the stables with

automatic feeders only 21 %.

The individual farm showed signifi cant infl uence on the modes of agonistic behaviour

in front and behind the feeding facilities. Threatening gestures happen more often in the

waiting area of automatic feeders than in that of feeding stalls. On the other hand horses

in computer controlled systems will be less disturbed at eating. All together the number

of negative interactions in the feeding area at both feeding systems was relatively low.

In addition the agonistic behaviour was infl uenced by the quantity of hay and the constitutional

typ of the horses.

Because of the management of the individual stable exercises the most substantial

infl uence on the behaviour of the horses, it can be said, that, correct group keeping with

professional management provided, both feeding systems are suitable for horses in run-in

sheds.]
Address
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Publisher KTBL Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5763
Permanent link to this record