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Author Zentall, T.R.; Clement, T.S. openurl 
  Title Memory mechanisms in pigeons: evidence of base-rate neglect Type Journal Article
  Year 2002 Publication Journal of experimental psychology. Animal behavior processes Abbreviated Journal J Exp Psychol Anim Behav Process  
  Volume 28 Issue 1 Pages 111-115  
  Keywords Animals; Columbidae; Discrimination Learning; Memory/*physiology; Random Allocation; Reaction Time; Reinforcement (Psychology); Retention (Psychology)  
  Abstract In delayed matching to sample, once acquired, pigeons presumably choose comparisons according to their memory for (the strength of) the sample. When memory for the sample is sufficiently weak, comparison choice should depend on the history of reinforcement associated with each of the comparison stimuli. In the present research, pigeons acquired two matching tasks in which Sample S1 was associated with one comparison from each task, C1 and C3, whereas Sample S2 was associated with Comparison C2, and Sample S3 was associated with Comparison C4. As the retention interval increased, the pigeons showed a bias to choose the comparison (C1 or C3) associated with the more frequently occurring sample (S1). Thus, pigeons were sensitive also to the (irrelevant) likelihood that each of the samples was presented. The results suggest that pigeons may allow their reference memory for the overall sample frequency to influence comparison choice, independent of the comparison stimuli present.  
  Address Department of Psychology, University of Kentucky, Lexington, Kentucky 40506-0044, USA. zentall@pop.uky.edu  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0097-7403 ISBN Medium  
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  Notes (down) PMID:11868229 Approved no  
  Call Number refbase @ user @ Serial 242  
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Author 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  
  Keywords  
  Abstract  
  Address Laboratory of Neuropsychology, NIH--NIMH, Building 49, Room 1B-80, 20892-4415, Bethesda, MD, USA  
  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 1364-6613 ISBN Medium  
  Area Expedition Conference  
  Notes (down) PMID:11849608 Approved no  
  Call Number refbase @ user @ Serial 371  
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Author Morgan, K.; Funkquist, P.; Nyman, G. url  doi
openurl 
  Title The effect of coat clipping on thermoregulation during intense exercise in trotters Type Journal Article
  Year 2002 Publication Equine Veterinary Journal Abbreviated Journal Equine Veterinary Journal  
  Volume 34 Issue S34 Pages 564-567  
  Keywords horse; thermoregulation; heat loss; recovery; blood temperature; oxygen uptake  
  Abstract Summary The aim of this study was to study the physiological, especially thermoregulatory, responses during intense exercise in the clipped horse compared to the horse with winter coat. Six Standardbred trotters were studied before and after clipping. They performed an inclined incremental high intensity treadmill exercise test and were monitored during recovery. The clipped horse differed significantly (ANOVA) during exercise as compare to coated: less increase in central venous blood temperature, higher skin surface temperature, greater difference skin to ambient temperature and higher rate of nonevaporative heat loss. The clipped horse had significantly lower total cutaneous evaporative heat loss from walk to end of peak exercise and a shorter time for recovery for the respiratory rate using a paired t test. The clipped horse showed a tendency (P = 0.059) to decreased oxygen uptake during the stepwise increase in workload. We concluded that the clipped horse experienced less strain on the thermoregulatory system due to an enhanced heat loss. Some clipped horses in the study showed a more efficient power output; future studies with emphasis on respiration and oxygen demand are needed to explain this.  
  Address  
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  Publisher American Medical Association (AMA) Place of Publication Editor  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0425-1644 ISBN Medium  
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  Notes (down) doi: 10.1111/j.2042-3306.2002.tb05484.x Approved no  
  Call Number Equine Behaviour @ team @ Serial 6614  
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Author Westergaard, G.C.; Suomi, S.J.; Higley, J.D. doi  openurl
  Title Handedness is associated with immune functioning and behavioural reactivity in rhesus macaques Type Journal Article
  Year 2002 Publication Laterality Abbreviated Journal Laterality  
  Volume 7 Issue 4 Pages 359-369  
  Keywords  
  Abstract In the present study we examined the relationship among handedness, immune functioning, and behavioural reactivity in rhesus macaques. We used the absolute number of CD4+ (T-helper) and CD8+ (T-suppressor) cells as dependent measures of immune functioning. We derived reactivity profiles from behavioural responses to a threat, and hand preference profiles from a quadrupedal food-reaching test. The results indicate positive correlations between the frequency of right versus left hand reaches and the absolute number of CD4+ cells, and between the frequency of right versus left hand reaches and the degree of human-directed aggression in response to an invasive threat. Immune measures were not associated with the strength of hand preference. These results are consistent with and extend previous findings obtained with rodents to nonhuman primates and provide further support for the view that behavioural lateralisation is associated with immune functioning and behavioural reactivity.  
  Address  
  Corporate Author Thesis  
  Publisher Routledge Place of Publication Editor  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1357-650x ISBN Medium  
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  Notes (down) doi: 10.1080/13576500143000230 Approved no  
  Call Number Equine Behaviour @ team @ Serial 5779  
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Author Kusunose, R.; Yamanobe, A. url  doi
openurl 
  Title The effect of training schedule on learned tasks in yearling horses Type Journal Article
  Year 2002 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.  
  Volume 78 Issue 2 Pages 225-233  
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  Abstract Twelve yearlings were divided into two groups and subjected to two different training schedules: (a) 30min of training daily (the daily trained group); and (b) 30min of training for 4 days, followed by a 3-day rest (the intermittently trained group), in order to compare the effect of two training methods on the ability of the horses to learn to be driven and ridden and to respond to the handlers? cues. The length of this experimental training was 17 days. The first step of training was surcingling and proceeded to lunging, to driving from the ground, and finally to being ridden at a trot on a track. Both groups were tested four times during the experimental period when they were at the same stage of training. They were driven and then ridden at a walk by a rider on a specified course and evaluated. The time to complete the course, accuracy of traveling the course, and heart rate during the test were used as the indicators of success in training. In three out of the four tests, the daily trained group tended to move faster and with more accuracy than the intermittently trained group. It would appear that daily training without a long interruption is more effective for yearlings.  
  Address  
  Corporate Author Thesis  
  Publisher Elsevier Place of Publication Editor  
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  Series Volume Series Issue Edition  
  ISSN 0168-1591 ISBN Medium  
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  Notes (down) doi: 10.1016/S0168-1591(02)00089-8 Approved no  
  Call Number Equine Behaviour @ team @ Serial 6382  
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Author Chamove, A.S.; Crawley-Hartrick, O.J.E.; Stafford, K.J. openurl 
  Title Horse reactions to human attitudes and behavior Type Journal Article
  Year 2002 Publication Anthrozoos Abbreviated Journal  
  Volume 15 Issue 4 Pages 323-331  
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  Notes (down) Cited By (since 1996): 4; Export Date: 21 October 2008 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4514  
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Author Ginther, O.J.; Lara, A.; Leoni, M.; Bergfelt, D.R. openurl 
  Title Herding and snaking by the harem stallion in domestic herds Type Journal Article
  Year 2002 Publication Theriogenology Abbreviated Journal  
  Volume 57 Issue 8 Pages 2139-2146  
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  Notes (down) Cited By (since 1996): 1; Export Date: 21 October 2008 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4516  
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Author Milo, R.; Shen-Orr, S.; Itzkovitz, S.; Kashtan, N.; Chklovskii, D.; Alon, U. url  doi
openurl 
  Title Network Motifs: Simple Building Blocks of Complex Networks Type Journal Article
  Year 2002 Publication Science Abbreviated Journal Science  
  Volume 298 Issue 5594 Pages 824-827  
  Keywords  
  Abstract Complex networks are studied across many fields of science. To uncover their structural design principles, we defined “network motifs,” patterns of interconnections occurring in complex networks at numbers that are significantly higher than those in randomized networks. We found such motifs in networks from biochemistry, neurobiology, ecology, and engineering. The motifs shared by ecological food webs were distinct from the motifs shared by the genetic networks of Escherichia coli and Saccharomyces cerevisiae or from those found in the World Wide Web. Similar motifs were found in networks that perform information processing, even though they describe elements as different as biomolecules within a cell and synaptic connections between neurons in Caenorhabditis elegans. Motifs may thus define universal classes of networks. This approach may uncover the basic building blocks of most networks.  
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  Notes (down) 10.1126/science.298.5594.824 Approved no  
  Call Number Equine Behaviour @ team @ Serial 5032  
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Author Garamszegi, L.Z.; Møller, A.P.; Erritzøe, J. doi  openurl
  Title Coevolving avian eye size and brain size in relation to prey capture and nocturnality Type Journal Article
  Year 2002 Publication Proceedings of the Royal Society of London. Series B: Biological Sciences Abbreviated Journal Proc Roy Soc Lond B Biol Sci  
  Volume 269 Issue 1494 Pages 961-967  
  Keywords adaptation; behaviour; brain size; coevolution; eye size; vision  
  Abstract Behavioural adaptation to ecological conditions can lead to brain size evolution. Structures involved in behavioural visual information processing are expected to coevolve with enlargement of the brain. Because birds are mainly vision–oriented animals, we tested the predictions that adaptation to different foraging constraints can result in eye size evolution, and that species with large eyes have evolved large brains to cope with the increased amount of visual input. Using a comparative approach, we investigated the relationship between eye size and brain size, and the effect of prey capture technique and nocturnality on these traits. After controlling for allometric effects, there was a significant, positive correlation between relative brain size and relative eye size. Variation in relative eye and brain size were significantly and positively related to prey capture technique and nocturnality when a potentially confounding variable, aquatic feeding, was controlled statistically in multiple regression of independent linear contrasts. Applying a less robust, brunching approach, these patterns also emerged, with the exception that relative brain size did not vary with prey capture technique. Our findings suggest that relative eye size and brain size have coevolved in birds in response to nocturnal activity and, at least partly, to capture of mobile prey.  
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  Notes (down) 10.1098/rspb.2002.1967 Approved no  
  Call Number Equine Behaviour @ team @ Serial 5452  
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Author Aureli, F.; Cords, M.; van Schaik, C.P. url  doi
openurl 
  Title Conflict resolution following aggression in gregarious animals: a predictive framework Type Journal Article
  Year 2002 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 64 Issue 3 Pages 325-343  
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  Abstract Knowledge of how animals manage their conflicts is critical for understanding the dynamics of social systems. During the last two decades research on gregarious animals, especially primates, has focused on the mechanisms of conflict management, mainly on friendly postconflict reunions (also called `reconciliation') in which former opponents exchange affiliative behaviour soon after an aggressive conflict. Our aim in this paper is to present a framework in which the costs and benefits of friendly postconflict reunions, both for each individual opponent and for their mutual relationship, are used to predict the patterning of postconflict resolution mechanisms in other gregarious animals. The framework predicts the occurrence of postconflict reunions in species that live in stable social units, have individualized relationships, and experience postconflict hostility, but especially in those in which intragroup aggression disrupts valuable relationships. The critical issue is whether aggressive conflicts occur between cooperative partners and whether the level of aggression is sufficient to jeopardize the benefits associated with such valuable relationships. We conclude by proposing four research priorities to evaluate the role of friendly reunions in negotiating relationships and the way they are themselves influenced by asymmetries in partner value and biological market effects. Copyright 2002 The Association for the Study of Animal Behaviour. Published by Elsevier Science Ltd. All rights reserved.  
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  Notes (down) Approved no  
  Call Number refbase @ user @ Serial 299  
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