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| Author | Truppa, V.; Garofoli, D.; Castorina, G.; Piano Mortari, E.; Natale, F.; Visalberghi, E. | ||||
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Identity concept learning in matching-to-sample tasks by tufted capuchin monkeys (Cebus apella) | Type | Journal Article | ||
| Year | 2010 | Publication | Animal Cognition | Abbreviated Journal | Anim. Cogn. |
| Volume | 13 | Issue | 6 | Pages | 835-848-848 |
| Keywords | Biomedical and Life Sciences | ||||
| Abstract | The abstract concept of equivalence is considered one of the bases of higher-order cognition, and it has been the subject of considerable research in comparative cognition. This study examined the conditions under which tufted capuchin monkeys (Cebus apella) are able to acquire an identity concept. Six capuchin monkeys were trained to solve a visual matching-to-sample (MTS) task on the basis of perceptual identity. The acquisition of the identity rule was inferred from the subject’s ability to solve transfer tests with novel stimuli. We evaluated the ability of the capuchin monkeys to match the shape of novel stimuli after training with both several small stimulus sets (Experiment 1) and a large stimulus set (Experiment 2). Moreover, we examined the ability of capuchins to transfer the concept to novel visual dimensions, such as colour and size and to transfer to novel spatial arrangements of the stimuli (Experiment 2). We demonstrated that the ability of capuchins to match novel stimuli was improved by increasing the number of stimuli used during training (Experiments 1 and 2) and that after a widely applicable identity concept based on the stimulus shape was acquired, the capuchins were able to match stimuli according to an identity rule based on both the colour and size of the stimuli and when the spatial arrangement of the stimuli was varied (Experiment 2). This study is the first to demonstrate that the size of the training set affects the acquisition of an abstract identity concept in an MTS task in non-human primates. | ||||
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| Publisher | Springer Berlin / Heidelberg | Place of Publication | Editor | ||
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| ISSN | 1435-9448 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5274 | ||
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| Author | Galef, B.G. | ||||
| Title |
Imitation and local enhancement: Detrimental effects of consensus definitions on analyses of social learning in animals | Type | Journal Article | ||
| Year | 2013 | Publication | Behavioural Processes | Abbreviated Journal | |
| Volume | 100 | Issue | Pages | 123-130 | |
| Keywords | Imitation; Local enhancement; Emulation; Copying; Culture; Tradition | ||||
| Abstract | Development of a widely accepted vocabulary referring to various types of social learning has made important contributions to decades of progress in analyzing the role of socially acquired information in the development of behavioral repertoires. It is argued here that emergence of a consensus vocabulary, while facilitating both communication and research, has also unnecessarily restricted research on social learning. The article has two parts. In the first, I propose that Thorndike, 1898, Thorndike, 1911 definition of imitation as “learning to do an act from seeing it done” has unduly restricted studies of the behavioral processes involved in the propagation of behavior. In part 2, I consider the possibility that success in labeling social learning processes believed to be less cognitively demanding than imitation (e.g. local and stimulus enhancement, social facilitation, etc.) has been mistaken for understanding of those processes, although essentially nothing is known of their stimulus control, development, phylogeny or substrate either behavioral or physiological. | ||||
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| ISSN | 0376-6357 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 6419 | ||
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| Author | Dugnol, B.; Fernández, C.; Galiano, G.; Velasco, J. | ||||
| Title |
Implementation of a diffusive differential reassignment method for signal enhancement: An application to wolf population counting | Type | Journal Article | ||
| Year | 2007 | Publication | Appl Math Comput | Abbreviated Journal | |
| Volume | 193 | Issue | Pages | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ Dugnol2007 | Serial | 6465 | ||
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| Author | Purpura, G.J. | ||||
| Title |
In Search of Human Uniqueness | Type | Journal Article | ||
| Year | 2006 | Publication | Philosophical Psychology | Abbreviated Journal | |
| Volume | 19 | Issue | Pages | 443-461 | |
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| Notes | Approved | no | |||
| Call Number | refbase @ user @ | Serial | 3435 | ||
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| Author | Nocera, J.J.; Forbes, G.J.; Giraldeau, L.-A. | ||||
| Title |
Inadvertent social information in breeding site selection of natal dispersing birds | Type | Journal Article | ||
| Year | 2006 | Publication | Proceedings. Biological Sciences / The Royal Society | Abbreviated Journal | Proc Biol Sci |
| Volume | 273 | Issue | 1584 | Pages | 349-355 |
| Keywords | Animals; *Behavior, Animal; *Breeding; *Environment; Female; Logistic Models; Male; Songbirds/growth & development/*physiology | ||||
| Abstract | Several species use the number of young produced as public information (PI) to assess breeding site quality. PI is inaccessible for synchronously breeding birds because nests are empty by the time the young can collect this information. We investigate if location cues are the next best source of inadvertent social information (ISI) used by young prospectors during breeding site choice. We experimentally deployed ISI as decoys and song playbacks of breeding males in suitable and sub-optimal habitats during pre- and post-breeding periods, and monitored territory establishment during the subsequent breeding season for a social, bobolink (Dolichonyx oryzivorus), and a more solitary species, Nelson's sharp-tailed sparrow (Ammodramus nelsoni). The sparrows did not respond to treatments, but bobolinks responded strongly to post-breeding location cues, irrespective of habitat quality. The following year, 17/20 sub-optimal plots to which bobolink males were recruited were defended for at least two weeks, indicating that song heard the previous year could exert a “carry-over attraction” effect on conspecifics the following year. Sixteen recruited males were natal dispersers, as expected when animals have little opportunity to directly sample their natal habitat quality. We suggest that differences in breeding synchronicity may induce an equivalent clinal distribution of ISI use. | ||||
| Address | Department of Biology, University of New Brunswick, Bag Service #45111, Fredericton, NB E3B 6E1, Canada. j.nocera@unb.ca | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 0962-8452 | ISBN | Medium | ||
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| Notes | PMID:16543178 | Approved | no | ||
| Call Number | Serial | 2129 | |||
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| Author | Penzhorn Bl, G.R. | ||||
| Title |
Incisor wear in free – ranging Cape mountain zebras | Type | Journal Article | ||
| Year | 1987 | Publication | Abbreviated Journal | S Afr J Wildl Res | |
| Volume | 17 | Issue | Pages | 99-102 | |
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| Notes | from Professor Hans Klingels Equine Reference List | Approved | no | ||
| Call Number | Serial | 1461 | |||
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| Author | Beauchamp, G. | ||||
| Title |
Individual Differences In Activity And Exploration Influence Leadership In Pairs Of Foraging Zebra Finches | Type | Journal Article | ||
| Year | 2000 | Publication | Behaviour | Abbreviated Journal | Behaviour |
| Volume | 137 | Issue | Pages | 301-314 | |
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| Abstract | This study investigated the role of dominance and level of activity and exploration on leadership in zebra finches (Taenopygia guttata) searching for food. In pairs of zebra finches fairly matched in size and that experienced the same level of food deprivation, the same bird consistently reached first one foraging patch over several trials. The same pattern of arrival to food occurred when resources were provided in two distant patches available concurrently, a situation that would potentially allow subordinates a greater access to resources. In further testing, the formation of new pairs with the same birds led to several changes in leadership, indicating that leadership is not an absolute feature. The member of a pair that proved to be the most active and exploratory during independent, solitary trials became the leader in nearly all pairs tested. The same pattern held true in newly rearranged pairs where individuals often experienced changes in dominance status. Dominance failed to be associated with leadership in all tests. The results suggest that in a relatively egalitarian species, level of activity and exploration may be a stronger predictor of leadership than dominance. | ||||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 4698 | ||
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| Author | Gorodnichenko, Y.; Roland, G. | ||||
| Title |
Individualism, innovation, and long-run growth | Type | Journal Article | ||
| Year | 2011 | Publication | Proceedings of the National Academy of Sciences | Abbreviated Journal | Proc. Natl. Acad. Sci. U.S.A. |
| Volume | 108 | Issue | Supplement 4 | Pages | 21316-21319 |
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| Notes | 10.1073/pnas.1101933108 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 5941 | ||
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| Author | Crosby, M.B.; Zhang, J.; Nowling, T.M.; Svenson, J.L.; Nicol, C.J.; Gonzalez, F.J.; Gilkeson, G.S. | ||||
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Inflammatory modulation of PPAR gamma expression and activity | Type | Journal Article | ||
| Year | 2006 | Publication | Clinical immunology | Abbreviated Journal | Clin Immunol |
| Volume | 118 | Issue | 2-3 | Pages | 276-283 |
| Keywords | Age Factors; Animals; Cell Line, Transformed; Cells, Cultured; Female; Inflammation Mediators/*physiology; Kidney/metabolism; Mesangial Cells/metabolism; Mice; Mice, Inbred BALB C; Mice, Inbred C57BL; Mice, Inbred MRL lpr; Mice, Knockout; Nitric Oxide/biosynthesis; Nitric Oxide Synthase Type II/biosynthesis/genetics; PPAR gamma/*biosynthesis/*genetics/metabolism; Up-Regulation/immunology | ||||
| Abstract | Nitric oxide (NO) production increases with age in the lupus-prone MRL/lpr mouse, paralleling disease activity. One mechanism for excess NO production in MRL/lpr mice may be a defect in down-regulatory mechanisms of the iNOS pathway. A potential modulator of NO is the nuclear hormone receptor peroxisome proliferation activated receptor gamma (PPARgamma). We demonstrate that renal PPARgamma protein expression was altered as disease progressed in MRL/lpr mice, which paralleled increased iNOS protein expression. Additionally, MRL/lpr-derived primary mesangial cells expressed less PPARgamma than BALB/c mesangial cells and produced more NO in response to LPS and IFNgamma. Furthermore, PPARgamma activity was reduced in mesangial cells following exposure to inflammatory mediators. This activity was restored with the addition of a NOS enzyme inhibitor. These results indicate that the activation of inflammatory pathways may lead to reduced activity and expression of PPARgamma, further exacerbating the disease state. | ||||
| Address | Department of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 1521-6616 | ISBN | Medium | ||
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| Notes | PMID:16303334 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 67 | ||
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| Author | Hoffmann, G.; Bentke, A.; Rose-Meierhöfer, S.; Berg, W.; Mazetti, P.; Hardarson, G.H. | ||||
| Title |
Influence of an active stable system on the behavior and body condition of Icelandic horses | Type | Journal Article | ||
| Year | 2012 | Publication | animal | Abbreviated Journal | |
| Volume | 6 | Issue | 10 | Pages | 1684-1693 |
| Keywords | activity, automatic feeding system, behavior, body condition score, Icelandic horse | ||||
| Abstract | Horses are often stabled in individual boxes, a method that does not meet their natural needs and may cause psychical and musculoskeletal diseases. This problem is particularly evident in Iceland, where horses often spend the long winter periods in cramped boxes. The aim of this study was to analyze the suitability of a group housing system in Iceland, but the results are also applicable to horses of other regions. Eight Icelandic horses were observed in an active stable system, and their behavior and time budget were recorded. Movement and lying behavior were studied with ALT (Activity, Lying, Temperature detection) pedometers. The effect of an automatic concentrate feeding station (CFS) on the horses’ behavior was examined. In the first period of investigation, the horses were fed concentrates manually, and in the second period, they were fed with the CFS. Additional behavioral observations and a determination of social hierarchy occurred directly or by video surveillance. The physical condition of the horses was recorded by body weight (BW) measurement and body condition scoring (BCS). The results showed a significant increase between the first and second trial periods in both the activity (P,0.001) and the lying time (P50.003) of the horses with use of the CFS. However, there was no significant change in BW during the first period without the CFS (P50.884) or during the second period with the CFS (P50.540). The BCS of the horses was constant at a very good level during both trial periods, and the horses showed a low level of aggression, a firm social hierarchy and behavioral synchronization. This study concludes that group housing according to the active stable principle is a welfare-friendly option for keeping horses and is a suitable alternative to conventional individual boxes. |
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| Publisher | Cambridge Journals Online | Place of Publication | Editor | ||
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| ISSN | 1751-732x | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5759 | ||
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