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Author Dixon, J.C. openurl 
  Title Pattern discrimination, learning-set and memory in a pony Type Journal Article
  Year 1996 Publication (down) Proceedings of the Paper Presented at the Midwestern ..? Abbreviated Journal  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 3599  
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Author Ballew, R.M.; Sabelko, J.; Gruebele, M. openurl 
  Title Direct observation of fast protein folding: the initial collapse of apomyoglobin Type Journal Article
  Year 1996 Publication (down) Proceedings of the National Academy of Sciences of the United States of America Abbreviated Journal Proc. Natl. Acad. Sci. U.S.A.  
  Volume 93 Issue 12 Pages 5759-5764  
  Keywords Animals; Apoproteins/*chemistry; Circular Dichroism; Horses; Kinetics; Muscle, Skeletal/chemistry; Myoglobin/*chemistry; *Protein Folding; Spectrometry, Fluorescence; Spectrophotometry, Infrared; Temperature  
  Abstract The rapid refolding dynamics of apomyoglobin are followed by a new temperature-jump fluorescence technique on a 15-ns to 0.5-ms time scale in vitro. The apparatus measures the protein-folding history in a single sweep in standard aqueous buffers. The earliest steps during folding to a compact state are observed and are complete in under 20 micros. Experiments on mutants and consideration of steady-state CD and fluorescence spectra indicate that the observed microsecond phase monitors assembly of an A x (H x G) helix subunit. Measurements at different viscosities indicate diffusive behavior even at low viscosities, in agreement with motions of a solvent-exposed protein during the initial collapse.  
  Address School of Chemical Sciences and Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana, 61801, USA  
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  Language English Summary Language Original Title  
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  ISSN 0027-8424 ISBN Medium  
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  Notes PMID:8650166 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3798  
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Author Boyd, R.; Richerson, P.J. url  openurl
  Title Why Culture is Common, but Cultural Evolution is Rare Type Journal Article
  Year 1996 Publication (down) Proceedings of the British Academy Abbreviated Journal Proc Br Acad  
  Volume 88 Issue Pages 73-93  
  Keywords cultural distributed evolution primates  
  Abstract If culture is defined as variation acquired and maintained by social learning, then culture is common in nature. However, cumulative cultural evolution resulting in behaviors that no individual could invent on their own is limited to humans, song birds, and perhaps chimpanzees. Circumstantial evidence suggests that cumulative cultural evolution requires the capacity for observational learning. Here, we analyze two models the evolution of psychological capacities that allow cumulative cultural evolution. Both models suggest that the conditions which allow the evolution of such capacities when rare are much more stringent than the conditions which allow the maintenance of the capacities when common. This result follows from the fact that the assumed benefit of the capacities, cumulative cultural adaptation, cannot occur when the capacities are rare. These results suggest why such capacities may be rare in nature.  
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  Publisher Royal Society/British Academy Place of Publication Editor  
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  Notes http://www.proc.britac.ac.uk/cgi-bin/somsid.cgi?page=summaries/pba88#boyd Approved no  
  Call Number Equine Behaviour @ team @ Serial 4195  
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Author Kitchen A; Denton D; Brent L openurl 
  Title Self-recognition and abstraction abilities in the common chimpanzee studied with distorting mirrors Type Journal Article
  Year 1996 Publication (down) Proc. Natl. Acad. Sci. USA Abbreviated Journal  
  Volume 93 Issue Pages 7405  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 3011  
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Author Phillips, K. doi  openurl
  Title Natural conceptual behavior in squirrel monkeys (saimiri sciureus): An experimental investigation Type Journal Article
  Year 1996 Publication (down) Primates Abbreviated Journal Primates  
  Volume 37 Issue 3 Pages 327-332  
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  Abstract Abstract  Natural conceptual discriminations have been tested in many different species, including pigeons and a variety of non-human primates. The ability of four male squirrel monkeys (Saimiri sciureus) to learn and use the natural concept “squirrel monkey” was investigated in this study. After a training phase, subjects were presented with novel stimuli in transfer and test trials. All subjects performed at a rate significantly above chance on the first test trial (p<.001), indicating that squirrel monkeys can utilize natural concepts in the laboratory.  
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  Call Number Equine Behaviour @ team @ Serial 3114  
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Author Hashimoto, C.; Takenaka, O.; Furuichi, T. doi  openurl
  Title Matrilineal kin relationship and social behavior of wild bonobos (Pan paniscus): Sequencing the D-loop region of mitochondrial DNA Type Journal Article
  Year 1996 Publication (down) Primates Abbreviated Journal Primates  
  Volume 37 Issue 3 Pages 305-318-318  
  Keywords Biomedical and Life Sciences  
  Abstract Matrilineal kin-relations among wild bonobos (Pan paniscus) were studied by DNA analysis. Subject individuals were the members of E1 group, living at Wamba, Zaire, which has been studied since 1974. DNA samples were extracted from wadges that bonobos spat out when feeding on sugar cane. The D-loop region of mitochondrial DNA was amplified by the PCR method, and a nucleotide sequence of 350 base pairs was determined for 17 individuals. Nucleotide variations were found at 44 positions of the sequence. Based on these variations, 13 matrilineal units were divided into seven groups, and the mother of an orphan male was determined among several females. These genetic analyses, together with behavioral observation to date, revealed the following facts. High sequence variation in the target region indicated that females transfer between groups of bonobos, which is in agreement with supposition from long-term field studies. For females, there was no relationship between genetic closeness and social closeness that is represented by frequencies of proximity or grooming. After immigration into a new group, females form social associations with senior females without regard to kin relationship.  
  Address  
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  Publisher Springer Japan Place of Publication Editor  
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  Series Volume Series Issue Edition  
  ISSN 0032-8332 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5199  
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Author Lebelt, D.; Schönreiter, S.; Zanella, A. J. openurl 
  Title Salivary cortisol in stallions: the relationship with plasma levels, daytime profile and changes in response to semen collection Type Journal Article
  Year 1996 Publication (down) Pferdeheilkunde Abbreviated Journal Pferdeheilkunde  
  Volume 14 Issue 4 Pages 411-414  
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  Call Number Equine Behaviour @ team @ Serial 4282  
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Author Sekuler, A.B.; Lee, J.A.; Shettleworth, S.J. openurl 
  Title Pigeons do not complete partly occluded figures Type Journal Article
  Year 1996 Publication (down) Perception Abbreviated Journal Perception  
  Volume 25 Issue 9 Pages 1109-1120  
  Keywords Animals; *Columbidae; *Visual Perception  
  Abstract One of the most common obstacles to object perception is the fact that objects often occlude parts of themselves and parts of other objects. Perceptual completion has been studied extensively in humans, and researchers have shown that humans do complete partly occluded objects. In an effort to understand more about the mechanisms underlying completion, recent research has extended the study of perceptual completion to other mammalian species. Monkeys and mice also seem to complete two-dimensional representations of partly occluded objects. The present study addresses the question of whether this capacity generalizes to a nonmammalian species, the pigeon (Columba livia). The results point to a limit of the generalizability of perceptual completion: pigeons do not complete partly occluded figures.  
  Address Department of Psychology, University of Toronto, ON, Canada  
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  Series Volume Series Issue Edition  
  ISSN 0301-0066 ISBN Medium  
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  Notes PMID:8983050 Approved no  
  Call Number refbase @ user @ Serial 377  
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Author Overman W.H. doi  openurl
  Title Adaptations of ''animal tests'' of cognition for use in children Type Journal Article
  Year 1996 Publication (down) Neurotoxicology and Teratology Abbreviated Journal  
  Volume 18 Issue Pages 343-343  
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  Call Number refbase @ user @ Serial 3472  
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Author Reboreda, J.C.; Clayton, N.S.; Kacelnik, A. url  openurl
  Title Species and sex differences in hippocampus size in parasitic and non-parasitic cowbirds Type Journal Article
  Year 1996 Publication (down) Neuroreport Abbreviated Journal Neuroreport  
  Volume 7 Issue 2 Pages 505-508  
  Keywords Animals; Birds/*physiology; Female; Hippocampus/*anatomy & histology; Male; Nesting Behavior/*physiology; Sex Characteristics; Species Specificity; Telencephalon/anatomy & histology  
  Abstract To test the hypothesis that selection for spatial abilities which require birds to locate and to return accurately to host nests has produced an enlarged hippocampus in brood parasites, three species of cowbird were compared. In shiny cowbirds, females search for host nests without the assistance of the male; in screaming cowbirds, males and females inspect hosts' nests together; in bay-winged cowbirds, neither sex searches because this species is not a brood parasite. As predicted, the two parasitic species had a relatively larger hippocampus than the non-parasitic species. There were no sex differences in relative hippocampus size in screaming or bay-winged cowbirds, but female shiny cowbirds had a larger hippocampus than the male.  
  Address Instituto de Biologia y Medicina Experimental-CONICET, Buenos Aires, Argentina  
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  ISSN 0959-4965 ISBN Medium  
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  Notes PMID:8730816 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4798  
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