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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	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
	Series Volume		Series Issue		Edition
	ISSN	0028-2804	ISBN		Medium
	Area		Expedition		Conference
	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	McDonnell, S.M.; Henry,M. Bristol, F.
	Title	Spontaneous erection and masturbation in equids Proc 35th			Type	Journal Article
	Year	1991	Publication		Abbreviated Journal	J. Reprod. Fert. Suppl
	Volume	44	Issue		Pages	664-665
	Keywords	Horse; Masturbation; Erection; Aversive conditioning; Sexual behavior; Ejaculation; Semen
	Abstract
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes	This paper is part of the special issue entitled “Proceedings of the 4th International Symposium on Stallion Reproduction”, Guest Edited by Dr. Edward Squires.			Approved	no
	Call Number				Serial	1378
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	Author	Krzak, W.E.; Gonyou, H.W.; Lawrence, L.M.
	Title	Wood chewing by stabled horses: diurnal pattern and effects of exercise			Type	Journal Article
	Year	1991	Publication	Journal of Animal Science	Abbreviated Journal	J. Anim Sci.
	Volume	69	Issue	3	Pages	1053-1058
	Keywords	Animal Feed; Animals; Behavior, Animal; Circadian Rhythm; Female; Horses/physiology; Male; Mastication; *Physical Conditioning, Animal; Sodium Chloride/administration & dosage; Videotape Recording; Wood
	Abstract	Nine yearling horses, stabled in individual stalls, were used in a trial to determine the diurnal pattern of wood chewing and the effects of exercise on this behavior. The trial was a Latin square design conducted over three 2-wk periods during which each horse was exposed to each of the three following treatments: 1) no exercise (NE), 2) exercise after the morning feeding (AM), and 3) exercise in the afternoon (PM). Horses were fed a complete pelleted feed in the morning and both pelleted feed and long-stemmed hay in the afternoon. Exercise consisted of 45 min on a mechanical walker followed by 45 min in a paddock with bare soil. Each stall was equipped with two untreated spruce boards during each period for wood chewing. Wood chewing was evaluated by videotaping each horse for 22 h during each period, determining the weight and volume of the boards before and after each period, and by visual appraisal of the boards. Intake of trace mineralized salt was also measured. Wood chewing occurred primarily between 2200 and 1200. All measures of wood chewing were correlated when totals for the entire 6 wk were analyzed. When analysis was performed on 2-wk values, videotape results were not correlated with volume or weight loss of boards. Horses chewed more when on the NE treatment (511 s/d) than when on AM or PM (57 and 136 s/d, respectively; P less than .05). Salt intake tended to be greater for NE than for the other treatments (P less than .10).(ABSTRACT TRUNCATED AT 250 WORDS)
	Address	Dept. of Anim. Sci., University of Illinois, Urbana 61801
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0021-8812	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:2061237			Approved	no
	Call Number	refbase @ user @			Serial	1949
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	Author	Houpt, K.A.
	Title	Animal behavior and animal welfare			Type	Journal Article
	Year	1991	Publication	Journal of the American Veterinary Medical Association	Abbreviated Journal	J Am Vet Med Assoc
	Volume	198	Issue	8	Pages	1355-1360
	Keywords	Animal Welfare; Animals; Behavior, Animal; Cats/psychology; Hoof and Claw/surgery; Horses/psychology; Housing, Animal
	Abstract	The value of behavioral techniques in assessing animal welfare, and in particular assessing the psychological well being of animals, is reviewed. Using cats and horses as examples, 3 behavioral methods are presented: (1) comparison of behavior patterns and time budgets; (2) choice tests; and (3) operant conditioning. The behaviors of intact and declawed cats were compared in order to determine if declawing led to behavioral problems or to a change in personality. Apparently it did not. The behavior of free ranging horses was compared with that of stabled horses. Using two-choice preference tests, the preference of horses for visual contact with other horses and the preference for bedding were determined. Horses show no significant preference for locations from which they can make visual contact with other horses, but they do prefer bedding, especially when lying down. Horses will perform an operant response in order to obtain light in a darkened barn or heat in an outside shed. These same techniques can be used to answer a variety of questions about an animal's motivation for a particular attribute of its environment.
	Address	New York State College of Veterinary Medicine, Cornell University, Ithaca 14853
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0003-1488	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:2061151			Approved	no
	Call Number	refbase @ user @			Serial	40
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	Author	Williams, D.O.; Boatwright, R.B.; Rugh, K.S.; Garner, H.E.; Griggs, D.M.J.
	Title	Myocardial blood flow, metabolism, and function with repeated brief coronary occlusions in conscious ponies			Type	Journal Article
	Year	1991	Publication	The American journal of physiology	Abbreviated Journal	Am J Physiol
	Volume	260	Issue	1 Pt 2	Pages	H100-9
	Keywords	Animals; Consciousness/physiology; Coronary Circulation/physiology; Coronary Disease/pathology/physiopathology; Disease Models, Animal; Hemodynamic Processes/physiology; Horses/physiology; Hydrogen/metabolism; Lactates/metabolism; Myocardium/*metabolism/pathology; Norepinephrine/metabolism; Potassium/metabolism; Regional Blood Flow
	Abstract	Studies were performed in the conscious pony instrumented with a Doppler flow probe and hydraulic occluder on the left anterior descending coronary artery (LAD), sonomicrometry crystals and intraventricular micromanometer in the left ventricle, and catheters in the left atrium and anterior interventricular vein. Two-minute LAD occlusions were performed every 30 min continuously or during working hours. Data on release of catabolites (potassium, hydrogen ions, and lactate) and norepinephrine from the initially dysfunctional region were obtained periodically during a regimen of 445 +/- 56 occlusions in six animals. Regional myocardial blood flow was measured (microsphere method) before and after an occlusion regimen in four animals. Marked release of catabolites and norepinephrine from the initially dysfunctional region was noted in association with early occlusions when myocardial segment function was severely reduced. With further occlusions, release of these substances decreased while segment function improved. Blood flow was markedly decreased in the initially dysfunctional region during an early occlusion but was at the control level during a later occlusion. Although the metabolic findings are consistent with protection due to “ischemic preconditioning” and no increase in collateral perfusion, the inverse relationship noted between catabolite release and segment function is best explained by flow-dependent mechanisms. These results, together with the myocardial blood flow data, serve to validate a previous assumption that protection against regional myocardial dysfunction under these conditions is due to increased collateral perfusion.
	Address	Department of Physiology, University of Missouri, Columbia 65212
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0002-9513	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:1992786			Approved	no
	Call Number	refbase @ user @			Serial	98
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	Author	Dougherty, D.M.; Lewis, P.
	Title	Stimulus generalization, discrimination learning, and peak shift in horses			Type	Journal Article
	Year	1991	Publication	Journal of the experimental analysis of behavior	Abbreviated Journal	J Exp Anal Behav
	Volume	56	Issue	1	Pages	97-104
	Keywords	Animals; Appetitive Behavior; Attention; Conditioning, Operant; Discrimination Learning; Female; Generalization, Stimulus; Horses/psychology; Male; Pattern Recognition, Visual; Size Perception
	Abstract	Using horses, we investigated three aspects of the stimulus control of lever-pressing behavior: stimulus generalization, discrimination learning, and peak shift. Nine solid black circles, ranging in size from 0.5 in. to 4.5 in. (1.3 cm to 11.4 cm) served as stimuli. Each horse was shaped, using successive approximations, to press a rat lever with its lip in the presence of a positive stimulus, the 2.5-in. (6.4-cm) circle. Shaping proceeded quickly and was comparable to that of other laboratory organisms. After responding was maintained on a variable-interval 30-s schedule, stimulus generalization gradients were collected from 2 horses prior to discrimination training. During discrimination training, grain followed lever presses in the presence of a positive stimulus (a 2.5-in circle) and never followed lever presses in the presence of a negative stimulus (a 1.5-in. [3.8-cm] circle). Three horses met a criterion of zero responses to the negative stimulus in fewer than 15 sessions. Horses given stimulus generalization testing prior to discrimination training produced symmetrical gradients; horses given discrimination training prior to generalization testing produced asymmetrical gradients. The peak of these gradients shifted away from the negative stimulus. These results are consistent with discrimination, stimulus generalization, and peak-shift phenomena observed in other organisms.
	Address	Department of Psychology, Ohio University, Athens 45701
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0022-5002	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:1940765			Approved	no
	Call Number				Serial	1764
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	Author	Pepperberg, I.M.; Brezinsky, M.V.
	Title	Acquisition of a relative class concept by an African gray parrot (Psittacus erithacus): discriminations based on relative size			Type	Journal Article
	Year	1991	Publication	Journal of Comparative Psychology	Abbreviated Journal	J Comp Psychol
	Volume	105	Issue	3	Pages	286-294
	Keywords	Animals; Aptitude; Concept Formation; Discrimination Learning; Form Perception; Male; Mental Recall; Parrots; Size Perception; Vocalization, Animal
	Abstract	We report that an African gray parrot (Psittacus erithacus), Alex, responds to stimuli on a relative basis. Previous laboratory studies with artificial stimuli (such as pure tones) suggest that birds make relational responses as a secondary strategy, only after they have acquired information about the absolute values of the stimuli. Alex, however, after learning to respond to a small set of exemplars on the basis of relative size, transferred this behavior to novel situations that did not provide specific information about the absolute values of the stimuli. He responded to vocal questions about which was the larger or smaller exemplar by vocally labeling its color or material, and he responded “none” if the exemplars did not differ in size. His overall accuracy was 78.7%.
	Address	Northwestern University
	Corporate Author				Thesis
	Publisher		Place of Publication	Washington, D.C. : 1983	Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0735-7036	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:1935007			Approved	yes
	Call Number	Equine Behaviour @ team @			Serial	3610
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	Author	Jablonska, E.M.; Ziolkowska, S.M.; Gill, J.; Szykula, R.; Faff, J.
	Title	Changes in some haematological and metabolic indices in young horses during the first year of jump-training			Type	Journal Article
	Year	1991	Publication	Equine Veterinary Journal	Abbreviated Journal	Equine Vet J
	Volume	23	Issue	4	Pages	309-311
	Keywords	Alanine Transaminase/blood; Animals; Bicarbonates/blood; Blood Glucose/analysis; Blood Proteins/analysis; Breeding; Carbon Dioxide/blood; Exercise Test/veterinary; Fatty Acids, Nonesterified/blood; Female; Fructose-Bisphosphate Aldolase/blood; Hematocrit/veterinary; Hemoglobins/analysis; Horses/blood/metabolism; Hydrogen-Ion Concentration; Lactates/blood; Male; Oxygen/blood; Physical Conditioning, Animal; Pyruvates/blood
	Abstract	Effects of an 18 min exercise test, on three separate occasions during a one year jump-training programme, was studied in seven horses. Determinations were carried out on venous blood for packed cell volume, haemoglobin, total protein, lactate and pyruvate, glucose, free fatty acids, insulin, glucagon, blood gases, bicarbonate, pH, aldolase, aspartate aminotransferase and alanine amino-transferase. Exercise caused a slight increase in lactate and pyruvate, total protein, aldolase, alanine aminotransferase, pO2, bicarbonate and pH. Glucose, free fatty acids and pCO2 levels decreased. Training caused no significant difference in these changes. However, during the year, increases in lactate and decreases in pH (resting levels) were observed.
	Address	Department of Vertebrate Animal Physiology, Warszawa, Poland
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0425-1644	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:1915234			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	3801
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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	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
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0036-8075	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:1887231			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2846
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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	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
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0036-8504	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:1842858			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2831
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