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Author Potts, W.K.; Manning, C.J.; Wakeland, E.K.
Title Mating patterns in seminatural populations of mice influenced by MHC genotype Type Journal Article
Year 1991 Publication Nature Abbreviated Journal (up) Nature
Volume 352 Issue 6336 Pages 619-621
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Notes 10.1038/352619a0 Approved no
Call Number Equine Behaviour @ team @ Serial 5424
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Author Scheidhacker, M.; Bender, W.; Vaitl, P.
Title Die Wirksamkeit des therapeutischen Reitens bei der Behandlung chronisch schizophrener Patienten Type Journal Article
Year 1991 Publication Der Nervenarzt Abbreviated Journal (up) Nervenarzt
Volume 62 Issue 5 Pages 283-287
Keywords Adaptation, Psychological; Adult; Animals; Attention; Chronic Disease; Female; Follow-Up Studies; *Horses; Humans; Male; Psychiatric Status Rating Scales; Psychotherapy/*methods; Schizophrenia/*rehabilitation; *Schizophrenic Psychology; Self Concept; *Sports
Abstract After describing horse-riding as a facility in managing mentally ill patients, a program for chronic schizophrenic in-patients is presented. Clinical experience with this program and also results of a controlled study are reported. The therapeutic value and slope for horse-riding are discussed in relation to different diagnoses.
Address Bezirkskrankenhaus Haar b. Munchen
Corporate Author Thesis
Publisher Place of Publication Editor
Language German Summary Language Original Title Die Wirksamkeit des therapeutischen Reitens bei der Behandlung chronisch schizophrener Patienten. Experimentelle Ergebnisse und klinische Erfahrungen
Series Editor Series Title Abbreviated Series Title
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ISSN 0028-2804 ISBN Medium
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Notes [The effectiveness of therapeutic horseback-riding in the treatment of chronic schizophrenic patients. Experimental results and clinical experiences] Approved no
Call Number Equine Behaviour @ team @ Serial 5067
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Author Rilling, M.E.; Neiworth, J.J.
Title How animals use images Type Journal Article
Year 1991 Publication Science Progress Abbreviated Journal (up) Sci Prog
Volume 75 Issue 298 Pt 3-4 Pages 439-452
Keywords Animals; Association Learning; Columbidae; *Concept Formation; *Imagination; *Mental Recall; Motion Perception; Problem Solving; *Thinking; *Visual Perception
Abstract Animal cognition is a field within experimental psychology in which cognitive processes formerly studied exclusively with people have been demonstrated in animals. Evidence for imagery in the pigeon emerges from the experiments described here. The pigeon's task was to discriminate, by pecking the appropriate choice key, between a clock hand presented on a video screen that rotated clockwise with constant velocity from a clock hand that violated constant velocity. Imagery was defined by trials on which the line rotated from 12.00 o'clock to 3.00 o'clock, then disappeared during a delay, and reappeared at a final stop location beyond 3.00 o'clock. After acquisition of a discrimination with final stop locations at 3.00 o'clock and 6.00 o'clock, the evidence for imagery was the accurate responding of the pigeons to novel locations at 4.00 o'clock and 7.00 o'clock. Pigeons display evidence of imagery by transforming a representation of movement that includes a series of intermediate steps which accurately represent the location of a moving stimulus after it disappears.
Address Department of Psychology, Michigan State University, East Lansing 48824
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Language English Summary Language Original Title
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ISSN 0036-8504 ISBN Medium
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Notes PMID:1842858 Approved no
Call Number Equine Behaviour @ team @ Serial 2831
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Author Real, L.A.
Title Animal choice behavior and the evolution of cognitive architecture Type Journal Article
Year 1991 Publication Science (New York, N.Y.) Abbreviated Journal (up) Science
Volume 253 Issue 5023 Pages 980-986
Keywords Animals; Bees/genetics/*physiology; Biomechanics; *Choice Behavior; *Cognition; *Evolution; Mathematics; Models, Genetic; Probability
Abstract Animals process sensory information according to specific computational rules and, subsequently, form representations of their environments that form the basis for decisions and choices. The specific computational rules used by organisms will often be evolutionarily adaptive by generating higher probabilities of survival, reproduction, and resource acquisition. Experiments with enclosed colonies of bumblebees constrained to foraging on artificial flowers suggest that the bumblebee's cognitive architecture is designed to efficiently exploit floral resources from spatially structured environments given limits on memory and the neuronal processing of information. A non-linear relationship between the biomechanics of nectar extraction and rates of net energetic gain by individual bees may account for sensitivities to both the arithmetic mean and variance in reward distributions in flowers. Heuristic rules that lead to efficient resource exploitation may also lead to subjective misperception of likelihoods. Subjective probability formation may then be viewed as a problem in pattern recognition subject to specific sampling schemes and memory constraints.
Address Department of Biology, University of North Carolina, Chapel Hill 27599-3280
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Language English Summary Language Original Title
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Series Volume Series Issue Edition
ISSN 0036-8075 ISBN Medium
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Notes PMID:1887231 Approved no
Call Number Equine Behaviour @ team @ Serial 2846
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Author Klingel, H.
Title Dix ans parmi les zèbres Type Journal Article
Year 1991 Publication Terre Sauvage Abbreviated Journal (up) Terre Sauvage
Volume 48 Issue Pages 34-43
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Notes from Professor Hans Klingels Equine Reference List Approved yes
Call Number Serial 1321
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Author Kirkpatrick, J.F.; Shldeler, S.E.; Lasley, B.L.; Turner, J.W.J.
Title Pregnancy determination in uncaptured feral horses by means of fecal steroid conjugates Type Journal Article
Year 1991 Publication Theriogenology Abbreviated Journal (up) Theriogenology
Volume 35 Issue 4 Pages 753-760
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Abstract This study was carried out to develop an accurate, rapid and inexpensive method for diagnosing pregnancy in uncaptured feral horses by analysis of fecal steroid metabolites and to compare the accuracy of this method with diagnosis by urinary estrone conjugates (E(1)C). Paired urine and fecal samples were collected from 40 sexually mature feral mares during August and October. Urine samples were extracted directly from the soil and analyzed by enzymeimmunoassay (EIA) for E(1)C. Water extracts of fecal samples were assayed by EIA for E(1)C and nonspecific progesterone metabolites (iPdG). Urinary E(1)C, fecal E(1)C and fecal iPdG concentrations for seven mares which produced foals were 3.9 +/- 1.3 (SEM) mug/mg creatinine, 4.2 +/- 0.8 ng/g feces and 1.411 +/- 569.6 ng/g feces, respectively. Urinary E(1)C and fecal E(1)C and iPdG concentrations for the 33 mares which did not produce foals were 0.1 +/- 0.0 mug/mg creatinine and 0.5 +/- 0.1 and 32.8 +/- 4.5 ng/g feces, respectively. These differed (P < 0.01) from values in mares which produced foals.
Address Department of Biological Sciences Eastern Montana College Billings, MT 59101 USA
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Language English Summary Language Original Title
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Series Volume Series Issue Edition
ISSN 0093-691X ISBN Medium
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Notes PMID:16726944 Approved no
Call Number refbase @ user @ Serial 146
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