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Author (up) Hampton, R.R.; Healy, S.D.; Shettleworth, S.J.; Kamil, A.C. doi  openurl
  Title Neuroecologists' are not made of straw Type Journal Article
  Year 2002 Publication Trends in Cognitive Sciences Abbreviated Journal Trends. Cognit. Sci.  
  Volume 6 Issue 1 Pages 6-7  
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  Abstract  
  Address Laboratory of Neuropsychology, NIH--NIMH, Building 49, Room 1B-80, 20892-4415, Bethesda, MD, USA  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1364-6613 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:11849608 Approved no  
  Call Number refbase @ user @ Serial 371  
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Author (up) Hampton, R.R.; Shettleworth, S.J. openurl 
  Title Hippocampus and memory in a food-storing and in a nonstoring bird species Type Journal Article
  Year 1996 Publication Behavioral neuroscience Abbreviated Journal Behav Neurosci  
  Volume 110 Issue 5 Pages 946-964  
  Keywords Animals; Appetitive Behavior/*physiology; Attention/physiology; Birds/*physiology; Brain Mapping; Feeding Behavior/*physiology; Mental Recall/*physiology; Organ Size/physiology; Orientation/*physiology; Retention (Psychology)/physiology; Species Specificity  
  Abstract Food-storing birds maintain in memory a large and constantly changing catalog of the locations of stored food. The hippocampus of food-storing black-capped chickadees (Parus atricapillus) is proportionally larger than that of nonstoring dark-eyed juncos (Junco hyemalis). Chickadees perform better than do juncos in an operant test of spatial non-matching-to-sample (SNMTS), and chickadees are more resistant to interference in this paradigm. Hippocampal lesions attenuate performance in SNMTS and increase interference. In tests of continuous spatial alternation (CSA), juncos perform better than chickadees. CSA performance also declines following hippocampal lesions. By itself, sensitivity of a given task to hippocampal damage does not predict the direction of memory differences between storing and nonstoring species.  
  Address Department of Psychology, University of Toronto, Ontario, Canada. robert@ln.nimh.nih.gov  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0735-7044 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8918998 Approved no  
  Call Number refbase @ user @ Serial 375  
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Author (up) Hampton, R.R.; Shettleworth, S.J. openurl 
  Title Hippocampal lesions impair memory for location but not color in passerine birds Type Journal Article
  Year 1996 Publication Behavioral neuroscience Abbreviated Journal Behav Neurosci  
  Volume 110 Issue 4 Pages 831-835  
  Keywords Animals; Appetitive Behavior/physiology; Birds/*physiology; Brain Mapping; Color Perception/*physiology; Discrimination Learning/physiology; Hippocampus/*physiology; Long-Term Potentiation/physiology; Mental Recall/*physiology; Orientation/*physiology; Species Specificity  
  Abstract The effects of hippocampal complex lesions on memory for location and color were assessed in black-capped chickadees (Parus atricapillus) and dark-eyed juncos (Junco hyemalis) in operant tests of matching to sample. Before surgery, most birds were more accurate on tests of memory for location than on tests of memory for color. Damage to the hippocampal complex caused a decline in memory for location, whereas memory for color was not affected in the same birds. This dissociation indicates that the avian hippocampus plays an important role in spatial cognition and suggests that this brain structure may play no role in working memory generally.  
  Address Department of Psychology, University of Toronto, Ontario, Canada  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0735-7044 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8864273 Approved no  
  Call Number refbase @ user @ Serial 376  
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Author (up) Hanggi, E.B. url  doi
openurl 
  Title Discrimination learning based on relative size concepts in horses (Equus caballus) Type Journal Article
  Year 2003 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.  
  Volume 83 Issue 3 Pages 201-213  
  Keywords Horse; Concept; Size transposition; Generalization; Learning; Training  
  Abstract This study explored whether or not horses (Equus caballus) could respond to stimuli using a concept based on relative size. In Experiment 1, after learning to respond to the larger of the two stimuli for six sets of two-dimensional (2D) training exemplars, one horse was tested for size transposition that used novel larger and smaller stimuli as well as three-dimensional (3D) objects (5 two-dimensional sets and 5 three-dimensional sets with large, medium, small, and tiny sizes). The horse correctly chose (significantly above chance) the larger of two stimuli regardless of novelty or dimension or combination. In Experiment 2, two additional horses were tested using a subset of the stimuli from Experiment 1. One horse was required to select the larger stimulus--as in Experiment 1--and the other the smaller stimulus. After learning the task, both horses responded correctly to new stimuli and showed size transposition. These results suggest that at least some horses are capable of solving problems based on relative size concepts. Moreover, they are able to generalize across situations that vary from flat, black shapes to objects of different materials and colors including balls, flower pots, and PVC connectors. These findings support earlier research that showed that horses could categorize certain stimuli, and provide new evidence that they are capable of using some form of concept for problem solving. Understanding that horses have more advanced learning abilities than was previously believed should help improve training methods and management.  
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  Call Number refbase @ user @ Serial 398  
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Author (up) Hanggi, E.B. openurl 
  Title Can Horses Recognize Pictures? Type Journal Article
  Year 2001 Publication Proceedings of the Third International Conference of Cognitive Science Abbreviated Journal  
  Volume Issue Pages 52-56  
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  Publisher Place of Publication Beijing, China. Editor  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 3566  
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Author (up) Hanggi, E.B. doi  openurl
  Title Interocular transfer of learning In horses (Equus caballus) Type Journal Article
  Year 1999 Publication Journal of Equine Veterinary Science Abbreviated Journal J Equine Vet Sci  
  Volume 19 Issue 8 Pages 518-524  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 3564  
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Author (up) Hansen, M.N.; Estvan, J.; Ladewig, J. url  doi
openurl 
  Title A note on resting behaviour in horses kept on pasture: Rolling prior to getting up Type Journal Article
  Year 2007 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.  
  Volume 105 Issue 1-3 Pages 265-269  
  Keywords Resting behaviour; Recumbency; Rolling behaviour; Rising behaviour; Horses; Comfort behaviour  
  Abstract In previous studies on lying behaviour in horses kept in individual boxes we observed that most horses that had been lying down resting sometimes made a rolling behaviour prior to getting up. The rolling behaviour was seen in approximately 30% of the times the horses stood up. To analyse whether the behaviour was caused by individual housing in a box or whether it is a behaviour occurring also under free range conditions, we observed a group of 43 horses kept on pasture throughout the day and night. The horses were observed from 03:00 to 10:00 h over four consecutive mornings, at a time when lying behaviour was frequent. Of the 43 horses observed, the rising procedure was seen in 41 horses, and 25 of these horses (60.9%) performed the rolling behaviour at least once. A total of 135 rising episodes were observed, and 41 followed the performance of a rolling behaviour (30.4%). In contrast to the rolling behaviour seen indoors, the behaviour was more varied outdoors in that some horses rolled anywhere from 45 to 180[degree sign], some even repeatedly, whereas horses in a box only rolled 90[degree sign] and back. In all cases when horses rolled 180[degree sign] they rolled back to the original side before getting up. Also in contrast to previous observations, no horse was observed changing position during the roll. We conclude that the behaviour is a kind of comfort behaviour but that further studies are necessary to explain its function.  
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  Notes Approved no  
  Call Number refbase @ user @ Serial 288  
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Author (up) Hare, B.; Brown, M.; Williamson, C.; Tomasello, M. doi  openurl
  Title The domestication of social cognition in dogs Type Journal Article
  Year 2002 Publication Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 298 Issue 5598 Pages 1634-1636  
  Keywords Animals; *Animals, Domestic; *Behavior, Animal; *Cognition; *Cues; *Dogs; Food; Humans; Memory; Pan troglodytes; *Social Behavior; Species Specificity; Vision; Wolves  
  Abstract Dogs are more skillful than great apes at a number of tasks in which they must read human communicative signals indicating the location of hidden food. In this study, we found that wolves who were raised by humans do not show these same skills, whereas domestic dog puppies only a few weeks old, even those that have had little human contact, do show these skills. These findings suggest that during the process of domestication, dogs have been selected for a set of social-cognitive abilities that enable them to communicate with humans in unique ways.  
  Address Department of Anthropology, Harvard University, Cambridge, MA 02138, USA. bhare@fas.harvard.edu  
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  Series Volume Series Issue Edition  
  ISSN 1095-9203 ISBN Medium  
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  Notes PMID:12446914 Approved no  
  Call Number refbase @ user @ Serial 595  
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Author (up) Hare, B.; Tomasello, M. doi  openurl
  Title Human-like social skills in dogs? Type Journal Article
  Year 2005 Publication Trends in Cognitive Sciences Abbreviated Journal Trends. Cognit. Sci.  
  Volume 9 Issue 9 Pages 439-444  
  Keywords *Animal Communication; Animals; *Behavior, Animal; Cognition/*physiology; Dogs; *Evolution; Humans; *Social Behavior  
  Abstract Domestic dogs are unusually skilled at reading human social and communicative behavior--even more so than our nearest primate relatives. For example, they use human social and communicative behavior (e.g. a pointing gesture) to find hidden food, and they know what the human can and cannot see in various situations. Recent comparisons between canid species suggest that these unusual social skills have a heritable component and initially evolved during domestication as a result of selection on systems mediating fear and aggression towards humans. Differences in chimpanzee and human temperament suggest that a similar process may have been an important catalyst leading to the evolution of unusual social skills in our own species. The study of convergent evolution provides an exciting opportunity to gain further insights into the evolutionary processes leading to human-like forms of cooperation and communication.  
  Address Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, Leipzig, Germany. hare@eva.mpg.de  
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  Series Volume Series Issue Edition  
  ISSN 1364-6613 ISBN Medium  
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  Notes PMID:16061417 Approved no  
  Call Number refbase @ user @ Serial 546  
Permanent link to this record
 

 
Author (up) Harewood, E.J.; McGowan, C.M. url  doi
openurl 
  Title Behavioral and physiological responses to stabling in naive horses Type Journal Article
  Year 2005 Publication Journal of Equine Veterinary Science Abbreviated Journal J. Equine Vet. Sci.  
  Volume 25 Issue 4 Pages 164-170  
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  Abstract The purpose of this study was to investigate the response of horses to confinement and isolation in a stable (indoor individual housing) for the first time using behavioral indices, heart rate, and salivary cortisol concentration. Six naive 2-year-old Australian Stock Horse fillies were examined at 4-hour intervals over 24 hours in an outdoor group paddock followed by 24 hours in indoor individual housing. Behavioral observations and scores and heart rates were recorded and saliva samples were taken at each interval. During stabling, all horses became agitated and demonstrated increased vocalization and movement. Behavioral scores were significantly higher in the indoor individual housing (P < .001). No significant difference in heart rates between the two environments was detected. Mean salivary cortisol did not increase significantly (2 ng/mL ± 1.4 ng/mL in outdoor group paddock vs 2.5 mL ± 1.2 ng/mL in indoor individual housing). No diurnal rhythm in salivary cortisol was evident in either the outdoor group paddock or indoor individual housing. The results of this study highlight that a combination of behavioral and physiological measures allow better understanding of stress, where one measurement may be misleading. First time stabling of horses elicited marked behavioral responses indicative of stress that were not reflected in increased heart rates or salivary cortisol concentrations. The lack of a diurnal cortisol rhythm and the comparatively high basal cortisol concentrations found in the outdoor group paddock environment may imply that the fillies were already stressed; therefore, stabling did not cause further aberrations detectable by salivary cortisol analysis.  
  Address  
  Corporate Author Thesis  
  Publisher Elsevier Place of Publication Editor  
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  Series Volume Series Issue Edition  
  ISSN 0737-0806 ISBN Medium  
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  Notes doi: 10.1016/j.jevs.2005.03.008 Approved no  
  Call Number Equine Behaviour @ team @ Serial 6137  
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