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Author Vlajkoviç, S.; Nikoliç, V.; Nikoliç, A.; Milanoviç, S.žA.; Jankoviç, B.D. url  doi
openurl 
  Title Asymmetrical Modulation of Immune Reactivity in Left- and Right-Biased Rats After Ipsilateral Ablation of the Prefrontal, Parietal and Occipital Brain Neocortex Type Journal Article
  Year 1994 Publication Int J Neurosci Abbreviated Journal International Journal of Neuroscience  
  Volume (down) 78 Issue 1-2 Pages 123-134  
  Keywords Brain asymmetry, brain neocortex, cortical ablation, rotational behavior, rotational bias, immune responses, neuroimmunomodulation, neuroimmunology  
  Abstract We report here on the lateralized brain immunomodulation in male Wistar rats, a phenomenon related to the rotational bias of animal and the site of cortical lesion. Rats assigned to left- and right-rotators in a cylindrical Plexiglass rotometer were subjected to the ablation of the ipsilateral prefrontal cortex (PFC), parietal cortex (PC) and occipital cortex (OC) and sensitized with bovine serum albumin (BSA) in complete Freund's adjuvant. Intact and sham-lesioned left-biased animals demonstrated increased Arthus and delayed hypersensitivity skin reactions and antibody production to BSA in comparison with corresponding right-biased animals. PFC ablation decreased humoral and cellular immune responses to BSA in left- but increased in right-biased rats. Lesioning of PC decreased humoral immune reactions in left- but increased in right-rotating animals. OC ablation failed to produce immunological abnormalities, These results suggest that immunopotentiation is associated with the left neocortex, and immunosuppression with the right neocortex. The prefrontal cortex appears to be particularly associated with immune reactions.  
  Address  
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  Publisher Informa Clin Med Place of Publication Editor  
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  ISSN 0020-7454 ISBN Medium  
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  Notes doi: 10.3109/00207459408986051 Approved no  
  Call Number Equine Behaviour @ team @ Serial 5777  
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Author Minton, J.E. url  openurl
  Title Function of the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system in models of acute stress in domestic farm animals Type Journal Article
  Year 1994 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.  
  Volume (down) 72 Issue 7 Pages 1891-1898  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 2942  
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Author Walter, G.; Reisner, A. url  openurl
  Title Student opinion formation on animal agriculture issues Type Journal Article
  Year 1994 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.  
  Volume (down) 72 Issue 6 Pages 1654-1658  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 2935  
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Author Gonyou, H.W. url  openurl
  Title Why the study of animal behavior is associated with the animal welfare issue Type Journal Article
  Year 1994 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.  
  Volume (down) 72 Issue 8 Pages 2171-2177  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 2931  
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Author Sappington, B.F.; Goldman, L. url  openurl
  Title Discrimination learning and concept formation in the Arabian horse Type Journal Article
  Year 1994 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.  
  Volume (down) 72 Issue 12 Pages 3080-3087  
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  Abstract Discrimination learning and concept formation abilities were investigated in four mature Arabian horses. A series of two-choice discrimination problems were presented on stimulus panels that could open to allow access to food bowls. Selection of the correct stimulus resulted in food reinforcement, and an incorrect choice was not rewarded. The positions of the correct and incorrect stimuli were varied randomly during each test session, and the criterion for learning each problem was 85% correct for two consecutive sessions of 30 or 40 trials. Testing progressed through six discrimination problems. The first four were simple pattern discriminations, but the last two incorporated several different triangles as correct stimuli and thus involved the concept of triangularity. Two of the subjects successfully completed only simple pattern discriminations, one showed evidence of learning in the first concept problem, and one completed all six tests, including the two concept formation problems. The results demonstrate complex pattern discrimination ability in horses, and suggest that they may also have the ability to form and use concepts in problem solving.  
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  Call Number Equine Behaviour @ team @ Serial 3569  
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Author Heyes, C.M. doi  openurl
  Title Social learning in animals: categories and mechanisms Type Journal Article
  Year 1994 Publication Biological reviews of the Cambridge Philosophical Society Abbreviated Journal Biol. Rev.  
  Volume (down) 69 Issue 2 Pages 207-231  
  Keywords Animals; *Behavior, Animal; Conditioning (Psychology); *Learning; Reinforcement (Psychology); *Social Behavior  
  Abstract There has been relatively little research on the psychological mechanisms of social learning. This may be due, in part, to the practice of distinguishing categories of social learning in relation to ill-defined mechanisms (Davis, 1973; Galef, 1988). This practice both makes it difficult to identify empirically examples of different types of social learning, and gives the false impression that the mechanisms responsible for social learning are clearly understood. It has been proposed that social learning phenomena be subsumed within the categorization scheme currently used by investigators of asocial learning. This scheme distinguishes categories of learning according to observable conditions, namely, the type of experience that gives rise to a change in an animal (single stimulus vs. stimulus-stimulus relationship vs. response-reinforcer relationship), and the type of behaviour in which this change is detected (response evocation vs. learnability) (Rescorla, 1988). Specifically, three alignments have been proposed: (i) stimulus enhancement with single stimulus learning, (ii) observational conditioning with stimulus-stimulus learning, or Pavlovian conditioning, and (iii) observational learning with response-reinforcer learning, or instrumental conditioning. If, as the proposed alignments suggest, the conditions of social and asocial learning are the same, there is some reason to believe that the mechanisms underlying the two sets of phenomena are also the same. This is so if one makes the relatively uncontroversial assumption that phenomena which occur under similar conditions tend to be controlled by similar mechanisms. However, the proposed alignments are intended to be a set of hypotheses, rather than conclusions, about the mechanisms of social learning; as a basis for further research in which animal learning theory is applied to social learning. A concerted attempt to apply animal learning theory to social learning, to find out whether the same mechanisms are responsible for social and asocial learning, could lead both to refinements of the general theory, and to a better understanding of the mechanisms of social learning. There are precedents for these positive developments in research applying animal learning theory to food aversion learning (e.g. Domjan, 1983; Rozin & Schull, 1988) and imprinting (e.g. Bolhuis, de Vox & Kruit, 1990; Hollis, ten Cate & Bateson, 1991). Like social learning, these phenomena almost certainly play distinctive roles in the antogeny of adaptive behaviour, and they are customarily regarded as 'special kinds' of learning (Shettleworth, 1993).(ABSTRACT TRUNCATED AT 400 WORDS)  
  Address Department of Psychology, University College London  
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  ISSN 1464-7931 ISBN Medium  
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  Notes PMID:8054445 Approved no  
  Call Number refbase @ user @ Serial 708  
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Author Judge, P.G.; de Waal, F.B. openurl 
  Title Intergroup grooming relations between alpha females in a population of free-ranging rhesus macaques Type Journal Article
  Year 1994 Publication Folia primatologica; international journal of primatology Abbreviated Journal Folia Primatol (Basel)  
  Volume (down) 63 Issue 2 Pages 63-70  
  Keywords Animals; Animals, Wild; Female; *Grooming; Macaca mulatta/*psychology; Male; Population Density; *Social Behavior  
  Abstract Intergroup affiliation among female rhesus macaques, Macaca mulatta, was examined in the captive free-ranging colony of Morgan Island, S.C., USA. The provisioned colony has many social groups (35) and is maintained at a relatively high population density (21 animals/ha) with a relatively low adult male to female ratio (1:8.8). Focal and ad libitum samples were collected on 32 adults (3 males and 29 females) from two groups. Although infrequent, grooming was observed between adult females from different groups, and alpha females were the main participants in these interactions. Colony records indicated that none of the intergroup grooms was between females formerly from a common group. Relations between familiar neighboring groups may be maintained by a combination of both affiliative and aggressive behavior.  
  Address Yerkes Regional Primate Research Center, Lawrenceville, Ga 30243  
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  Series Volume Series Issue Edition  
  ISSN 0015-5713 ISBN Medium  
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  Notes PMID:7813977 Approved no  
  Call Number refbase @ user @ Serial 208  
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Author Straatsma, G.; Samson, R.A.; Olijnsma, T.W.; Op Den Camp, H.J.; Gerrits, J.P.; Van Griensven, L.J. openurl 
  Title Ecology of Thermophilic Fungi in Mushroom Compost, with Emphasis on Scytalidium thermophilum and Growth Stimulation of Agaricus bisporus Mycelium Type Journal Article
  Year 1994 Publication Abbreviated Journal Appl Environ Microbiol  
  Volume (down) 60 Issue 2 Pages 454-458  
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  Abstract Twenty-two species of thermophilic fungi were isolated from mushroom compost. Scytalidium thermophilum was present in the compost ingredients, fresh straw, horse droppings, and drainage from compost and dominated the fungal biota of compost after preparation. Of 34 species of thermophilic fungi tested, 9 promoted mycelial growth of Agaricus bisporus on sterilized compost: Chaetomium thermophilum, an unidentified Chaetomium sp., Malbranchea sulfurea, Myriococcum thermophilum, S. thermophilum, Stilbella thermophila, Thielavia terrestris, and two unidentified basidiomycetes. These species will be considered for future experiments on inoculation and more controlled preparation of compost.  
  Address Mushroom [ill] Station, Horst, The Netherlands  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0099-2240 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:16349175 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2664  
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Author Rizhova, L.Y.; Kulagin, D.A. url  doi
openurl 
  Title The effects of corticosteroids on lateral bias in female rats Type Journal Article
  Year 1994 Publication Behavioural Brain Research Abbreviated Journal Behav. Brain. Res.  
  Volume (down) 60 Issue 1 Pages 51-54  
  Keywords Corticosterone; Lateral preference; Estrus cycle; Asymmetry  
  Abstract In Experiment 1 female rats were given one trial per day for 8 days in a T-maze, and their initial direction of choice (left/right) was noted. Vaginal smears were also obtained daily. After this some animals were adrenalectomized and given Ringer's solution; others were adrenalectomozed and given hydrocortisone replacement; a third group was sham adrenalectomized, and a fourth group was an intact control. A week after surgery the animals were again tested for 8 days in the T-maze and vaginal smears were obtained. In Experiment 2 rats were subjected to the same surgical treatments as described above and were then tested for 8 days in the T-maze. In Expt. 1 there was no direction bias among the four groups prior to surgery. However, after surgery the Adrenalectomy + Ringer's group showed a significant increase in their rightward choices in the T-maze. This was also found in Expt. 2. Both adrenalectomized groups in Expt. 1 had a significant reduction in the duration of the estrus phase of their cycle. We conclude that corticosterone can affect lateral preference in a T-maze through a mechanism independent of the hormonal changes involved in the estrus cycle.  
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  ISSN 0166-4328 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5349  
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Author Premack D; Premack AJ openurl 
  Title Levels of causal understanding in chimpanzees and children Type Journal Article
  Year 1994 Publication Cognition Abbreviated Journal  
  Volume (down) 50 Issue Pages 347  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 3072  
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