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Author McComb, K.
Title Social cognition and emotional awareness: studies on elephants and horses Type Conference Article
Year 2015 Publication Proceedings of the 3. International Equine Science Meeting Abbreviated Journal Proc. 3. Int. Equine. Sci. Mtg
Volume Issue Pages
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Corporate Author McComb, K. Thesis
Publisher Xenophon Publishing Place of Publication Wald Editor Krueger, K.
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title Proc. 3. Int. Equine. Sci. Mtg
Series Volume in prep Series Issue Edition
ISSN ISBN 978-3-95625-000-2 Medium
Area Expedition Conference
Notes Id - Approved (up) no
Call Number Equine Behaviour @ team @ Serial 5800
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Author Smith, A.V.; Proops, L.; Grounds, K.; Wathan, J.; McComb, K.
Title Functionally relevant responses to human facial expressions of emotion in the domestic horse (Equus caballus) Type Journal Article
Year 2016 Publication Biology Letters Abbreviated Journal Biol. Lett.
Volume 12 Issue 2 Pages
Keywords
Abstract Whether non-human animals can recognize human signals, including emotions, has both scientific and applied importance, and is particularly relevant for domesticated species. This study presents the first evidence of horses' abilities to spontaneously discriminate between positive (happy) and negative (angry) human facial expressions in photographs. Our results showed that the angry faces induced responses indicative of a functional understanding of the stimuli: horses displayed a left-gaze bias (a lateralization generally associated with stimuli perceived as negative) and a quicker increase in heart rate (HR) towards these photographs. Such lateralized responses towards human emotion have previously only been documented in dogs, and effects of facial expressions on HR have not been shown in any heterospecific studies. Alongside the insights that these findings provide into interspecific communication, they raise interesting questions about the generality and adaptiveness of emotional expression and perception across species.
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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Notes Approved (up) no
Call Number Equine Behaviour @ team @ Serial 6010
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Author McComb, K.; Moss, C.; Sayialel, S.; Baker, L.
Title Unusually extensive networks of vocal recognition in African elephants Type Journal Article
Year 2000 Publication Anim Behav Abbreviated Journal
Volume 59 Issue Pages
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Notes Approved (up) no
Call Number Equine Behaviour @ team @ McComb2000 Serial 6281
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Author Proops, L.; Grounds, K.; Smith, A.V.; McComb, K.
Title Animals Remember Previous Facial Expressions that Specific Humans Have Exhibited Type Journal Article
Year 2018 Publication Current Biology Abbreviated Journal
Volume 28 Issue 9 Pages 1428-1432.e4
Keywords affective processing; face processing; ; animal-human interaction; interspecific communication; animal memory
Abstract Summary For humans, facial expressions are important social signals, and how we perceive specific individuals may be influenced by subtle emotional cues that they have given us in past encounters. A wide range of animal species are also capable of discriminating the emotions of others through facial expressions [1, 2, 3, 4, 5], and it is clear that remembering emotional experiences with specific individuals could have clear benefits for social bonding and aggression avoidance when these individuals are encountered again. Although there is evidence that non-human animals are capable of remembering the identity of individuals who have directly harmed them [6, 7], it is not known whether animals can form lasting memories of specific individuals simply by observing subtle emotional expressions that they exhibit on their faces. Here we conducted controlled experiments in which domestic horses were presented with a photograph of an angry or happy human face and several hours later saw the person who had given the expression in a neutral state. Short-term exposure to the facial expression was enough to generate clear differences in subsequent responses to that individual (but not to a different mismatched person), consistent with the past angry expression having been perceived negatively and the happy expression positively. Both humans were blind to the photograph that the horses had seen. Our results provide clear evidence that some non-human animals can effectively eavesdrop on the emotional state cues that humans reveal on a moment-to-moment basis, using their memory of these to guide future interactions with particular individuals.
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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 0960-9822 ISBN Medium
Area Expedition Conference
Notes Approved (up) no
Call Number Equine Behaviour @ team @ Serial 6394
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Author Proops, L.; McComb, K.; Reby, D.
Title Cross-modal individual vocal recognition in the domestic horse Type Conference Article
Year 2008 Publication IESM 2008 Abbreviated Journal
Volume Issue Pages
Keywords social cognition, animal-human interaction, horses, attention
Abstract Horses fulfill many of the criteria for a species in which it would be adaptive to be capable of individual recognition: they are highly social, form strong and long lasting bonds, their affiliations are rarely kin based, they have a fission-fusion social structure and they possess inter and intra-group dominance hierarchies.

We used a novel cross-modal, expectancy violation paradigm to provide the first systematic evidence that a non-human animal – the domestic horse- is capable of cross modal recognition. We believe this paradigm could provide an ideal way to study individual recognition across a wide range of species.

For full published details see: Proops L, McComb K, Reby D (2009) Cross-modal individual recognition in domestic horses (Equus caballus). Proc Natl Acad Sci U S A 106: 947-951.
Address Centre for Mammal Vocal Communication Research, Psychology department,
Corporate Author Proops, L Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN ISBN Medium
Area Expedition Conference IESM 2008
Notes Talk 15 min IESM 2008 Approved (up) yes
Call Number Equine Behaviour @ team @ Serial 4469
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