Records |
Author |
Levy, J. |
Title |
The mammalian brain and the adaptive advantage of cerebral asymmetry |
Type |
Journal Article |
Year |
1977 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
Volume |
299 |
Issue |
|
Pages |
264-272 |
Keywords |
*Adaptation, Physiological; Adaptation, Psychological/physiology; Animals; Behavior, Animal/physiology; Brain/*physiology; Cognition/physiology; Dominance, Cerebral/*physiology; *Evolution; Humans; Intelligence; Perception/physiology |
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0077-8923 |
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Notes |
PMID:280207 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4137 |
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Author |
Griffin, A.S. |
Title |
Socially acquired predator avoidance: Is it just classical conditioning? |
Type |
Journal Article |
Year |
2008 |
Publication |
Brain Research Bulletin |
Abbreviated Journal |
Special Issue:Brain Mechanisms, Cognition and Behaviour in Birds |
Volume |
76 |
Issue |
3 |
Pages |
264-271 |
Keywords |
Learning; Classical (Pavlovian) conditioning; Social learning; Ecological specialization; General process theory; Ecology; Predation; Backward conditioning |
Abstract |
Associative learning theories presume the existence of a general purpose learning process, the structure of which does not mirror the demands of any particular learning problem. In contrast, learning scientists working within an Evolutionary Biology tradition believe that learning processes have been shaped by ecological demands. One potential means of exploring how ecology may have modified properties of acquisition is to use associative learning theory as a framework within which to analyse a particular learning phenomenon. Recent work has used this approach to examine whether socially transmitted predator avoidance can be conceptualised as a classical conditioning process in which a novel predator stimulus acts as a conditioned stimulus (CS) and acquires control over an avoidance response after it has become associated with alarm signals of social companions, the unconditioned stimulus (US). I review here a series of studies examining the effect of CS/US presentation timing on the likelihood of acquisition. Results suggest that socially acquired predator avoidance may be less sensitive to forward relationships than traditional classical conditioning paradigms. I make the case that socially acquired predator avoidance is an exciting novel one-trial learning paradigm that could be studied along side fear conditioning. Comparisons between social and non-social learning of danger at both the behavioural and neural level may yield a better understanding of how ecology might shape properties and mechanisms of learning. |
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ISSN |
0361-9230 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4697 |
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Author |
Harcourt, J.L.; Ang, T.Z.; Sweetman, G.; Johnstone, R.A.; Manica, A. |
Title |
Social feedback and the emergence of leaders and followers |
Type |
Journal Article |
Year |
2009 |
Publication |
Current Biology : CB |
Abbreviated Journal |
Curr Biol |
Volume |
19 |
Issue |
3 |
Pages |
248-252 |
Keywords |
Analysis of Variance; Animals; Appetitive Behavior/physiology; *Feedback; Great Britain; *Leadership; Markov Chains; Models, Biological; Monte Carlo Method; Smegmamorpha/*physiology; *Social Behavior; Video Recording |
Abstract |
In many animal groups, certain individuals consistently appear at the forefront of coordinated movements [1-4]. How such leaders emerge is poorly understood [5, 6]. Here, we show that in pairs of sticklebacks, Gasterosteus aculeatus, leadership arises from individual differences in the way that fish respond to their partner's movements. Having first established that individuals differed in their propensity to leave cover in order to look for food, we randomly paired fish of varying boldness, and we used a Markov Chain model to infer the individual rules underlying their joint behavior. Both fish in a pair responded to each other's movements-each was more likely to leave cover if the other was already out and to return if the other had already returned. However, we found that bolder individuals displayed greater initiative and were less responsive to their partners, whereas shyer individuals displayed less initiative but followed their partners more faithfully; they also, as followers, elicited greater leadership tendencies in their bold partners. We conclude that leadership in this case is reinforced by positive social feedback. |
Address |
Department of Zoology, University of Cambridge, Cambridge, UK |
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English |
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ISSN |
0960-9822 |
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Notes |
PMID:19185497 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
5123 |
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Author |
Lea, S.E.G.; Goto, K.; Osthaus, B.; Ryan, C.M.E. |
Title |
The logic of the stimulus |
Type |
Journal Article |
Year |
2006 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
9 |
Issue |
4 |
Pages |
247-256 |
Keywords |
Animals; Behavior, Animal/*physiology; Cognition/*physiology; Columbidae; Comprehension/physiology; Dogs; Humans; *Logic; Pattern Recognition, Visual/physiology; Perception/*physiology; Problem Solving/*physiology; Species Specificity |
Abstract |
This paper examines the contribution of stimulus processing to animal logics. In the classic functionalist S-O-R view of learning (and cognition), stimuli provide the raw material to which the organism applies its cognitive processes-its logic, which may be taxon-specific. Stimuli may contribute to the logic of the organism's response, and may do so in taxon-specific ways. Firstly, any non-trivial stimulus has an internal organization that may constrain or bias the way that the organism addresses it; since stimuli can only be defined relative to the organism's perceptual apparatus, and this apparatus is taxon-specific, such constraints or biases will often be taxon-specific. Secondly, the representation of a stimulus that the perceptual system builds, and the analysis it makes of this representation, may provide a model for the synthesis and analysis done at a more cognitive level. Such a model is plausible for evolutionary reasons: perceptual analysis was probably perfected before cognitive analysis in the evolutionary history of the vertebrates. Like stimulus-driven analysis, such perceptually modelled cognition may be taxon-specific because of the taxon-specificity of the perceptual apparatus. However, it may also be the case that different taxa are able to free themselves from the stimulus logic, and therefore apply a more abstract logic, to different extents. This thesis is defended with reference to two examples of cases where animals' cognitive logic seems to be isomorphic with perceptual logic, specifically in the case of pigeons' attention to global and local information in visual stimuli, and dogs' failure to comprehend means-end relationships in string-pulling tasks. |
Address |
School of Psychology, Washington Singer Laboratories, University of Exeter, Exeter, EX4 4QG, United Kingdom. s.e.g.lea@exeter.ac.uk |
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Edition |
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ISSN |
1435-9448 |
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Notes |
PMID:16909234 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2450 |
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Author |
Joubert, L.; Oudar, J.; Hannoun, C.; Beytout, D.; Corniou, B.; Guillon, J.C.; Panthier, R. |
Title |
[Epidemiology of the West Nile virus: study of a focus in Camargue. IV. Meningo-encephalomyelitis of the horse] |
Type |
Journal Article |
Year |
1970 |
Publication |
Annales de l'Institut Pasteur |
Abbreviated Journal |
Ann Inst Pasteur (Paris) |
Volume |
118 |
Issue |
2 |
Pages |
239-247 |
Keywords |
Animals; Ecology; Encephalitis Viruses/*isolation & purification; Encephalomyelitis, Equine/*epidemiology/immunology; France; Hemagglutination Inhibition Tests; Meningoencephalitis/*veterinary; Neurologic Manifestations; Serologic Tests |
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Language |
French |
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Original Title |
Epidemiologie du virus West Nile: etude d'un foyer en Camargue. IV. La meningo-encephalomyelite du cheval |
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ISSN |
0020-2444 |
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Notes |
PMID:5461277 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2737 |
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Author |
Watanabe, S.; Huber, L. |
Title |
Animal logics: decisions in the absence of human language |
Type |
Journal Article |
Year |
2006 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
9 |
Issue |
4 |
Pages |
235-245 |
Keywords |
*Animal Communication; Animals; Behavior, Animal/*physiology; Brain/physiology; Cognition/*physiology; Decision Making/*physiology; Evolution; Humans; *Language; *Logic; Problem Solving/physiology |
Abstract |
Without Abstract |
Address |
Department of Psychology, Keio University, Mita 2-15-45, Minato-ku, Tokyo 108, Japan. swat@flet.keio.ac.jp |
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ISSN |
1435-9448 |
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Notes |
PMID:16909231 |
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no |
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Equine Behaviour @ team @ |
Serial |
2453 |
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Author |
Overli, O.; Korzan, W.J.; Hoglund, E.; Winberg, S.; Bollig, H.; Watt, M.; Forster, G.L.; Barton, B.A.; OVerli, E.; Renner, K.J.; Summers, C.H. |
Title |
Stress coping style predicts aggression and social dominance in rainbow trout |
Type |
Journal Article |
Year |
2004 |
Publication |
Hormones and Behavior |
Abbreviated Journal |
Horm Behav |
Volume |
45 |
Issue |
4 |
Pages |
235-241 |
Keywords |
Adaptation, Psychological/physiology; Aggression/*physiology; Animals; *Dominance-Subordination; Female; *Hierarchy, Social; Hydrocortisone/blood; Individuality; Male; Matched-Pair Analysis; Oncorhynchus mykiss/*physiology; Stress/*physiopathology |
Abstract |
Social stress is frequently used as a model for studying the neuroendocrine mechanisms underlying stress-induced behavioral inhibition, depression, and fear conditioning. It has previously been shown that social subordination may result in increased glucocorticoid release and changes in brain signaling systems. However, it is still an open question which neuroendocrine and behavioral differences are causes, and which are consequences of social status. Using juvenile rainbow trout of similar size and with no apparent differences in social history, we demonstrate that the ability to win fights for social dominance can be predicted from the duration of a behavioral response to stress, in this case appetite inhibition after transfer to a new environment. Moreover, stress responsiveness in terms of confinement-induced changes in plasma cortisol was negatively correlated to aggressive behavior. Fish that exhibited lower cortisol responses to a standardized confinement test were markedly more aggressive when being placed in a dominant social position later in the study. These findings support the view that distinct behavioral-physiological stress coping styles are present in teleost fish, and these coping characteristics influence both social rank and levels of aggression. |
Address |
Biology Department and Neuroscience Group, University of South Dakota, Vermillion, SD 57069, USA. oyvind.overli@bio.uio.no |
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ISSN |
0018-506X |
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Notes |
PMID:15053939 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4192 |
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Author |
Keay, J.M.; Singh, J.; Gaunt, M.C.; Kaur, T. |
Title |
Fecal glucocorticoids and their metabolites as indicators of stress in various mammalian species: a literature review |
Type |
Journal Article |
Year |
2006 |
Publication |
Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians |
Abbreviated Journal |
J Zoo Wildl Med |
Volume |
37 |
Issue |
3 |
Pages |
234-244 |
Keywords |
Animals; *Animals, Wild/metabolism; Chromatography, High Pressure Liquid/methods/veterinary; Circadian Rhythm; Conservation of Natural Resources; *Ecosystem; Feces/*chemistry; Glucocorticoids/*analysis/metabolism; Humans; Seasons; Species Specificity; Specimen Handling/methods/veterinary; Stress, Psychological/*metabolism |
Abstract |
Conservation medicine is a discipline in which researchers and conservationists study and respond to the dynamic interplay between animals, humans, and the environment. From a wildlife perspective, animal species are encountering stressors from numerous sources. With the rapidly increasing human population, a corresponding increased demand for food, fuel, and shelter; habitat destruction; and increased competition for natural resources, the health and well-being of wild animal populations is increasingly at risk of disease and endangerment. Scientific data are needed to measure the impact that human encroachment is having on wildlife. Nonbiased biometric data provide a means to measure the amount of stress being imposed on animals from humans, the environment, and other animals. The stress response in animals functions via glucocorticoid metabolism and is regulated by the hypothalamic-pituitary-adrenal axis. Fecal glucocorticoids, in particular, may be an extremely useful biometric test, since sample collection is noninvasive to subjects and, therefore, does not introduce other variables that may alter assay results. For this reason, many researchers and conservationists have begun to use fecal glucocorticoids as a means to measure stress in various animal species. This review article summarizes the literature on many studies in which fecal glucocorticoids and their metabolites have been used to assess stress levels in various mammalian species. Variations between studies are the main focus of this review. Collection methods, storage conditions, shipping procedures, and laboratory techniques utilized by different researchers are discussed. |
Address |
Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Tech, 0442 Duck Pond Drive, Blacksburg, Virginia 24061, USA |
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English |
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ISSN |
1042-7260 |
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Notes |
PMID:17319120 |
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no |
Call Number |
refbase @ user @ |
Serial |
616 |
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Author |
Palme, R. |
Title |
Non-invasive measurement of glucocorticoids: Advances and problems |
Type |
Journal Article |
Year |
2019 |
Publication |
Physiology & Behavior |
Abbreviated Journal |
Physiol. Behav. |
Volume |
199 |
Issue |
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Pages |
229-243 |
Keywords |
Glucocorticoids; Non-invasive; Faecal cortisol/corticosterone metabolites; Immunoassays; Physiological/biological validation |
Abstract |
Glucocorticoids (GCs; i.e. cortisol/corticosterone) are a central component of the stress response and thus their measurement is frequently used to evaluate the impact of stressful situations. Their metabolites from faeces of various animal species are more and more taken as a non-invasive aid to assess GC release and thus adrenocortical activity. The current literature review includes an extensive collection (1327 papers) and evaluation (see also Supplementary Tables) of the literature on faecal cortisol/corticosterone metabolite (FCM) analysis published to date. It aims at giving reference for researchers interested in implementing FCM analysis into their study or seeking to improve such methods by providing background knowledge on GC metabolism and excretion, conveying insights into methodological issues and stating caveats of FCM analysis and by highlighting prerequisites for and some examples of a successful application of such methods. Collecting faecal samples and analysing FCMs may appear simple and straightforward, but researchers have to select and apply methods correctly. They also need to be aware of the many pitfalls and potentially confounding factors and, last but not least, have to carefully interpret results. Applied properly, measurement of FCMs is a powerful non-invasive tool in a variety of research areas, such as (stress) biology, ethology, ecology, animal conservation and welfare, but also biomedicine. |
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0031-9384 |
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Palme2019_attachment.pdf |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6517 |
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Author |
Aureli, F.; de Waal, F.B. |
Title |
Inhibition of social behavior in chimpanzees under high-density conditions |
Type |
Journal Article |
Year |
1997 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
Volume |
41 |
Issue |
3 |
Pages |
213-228 |
Keywords |
Aggression/*psychology; Animals; *Behavior, Animal; *Crowding; Female; Male; Pan troglodytes/*psychology; Population Density; *Social Environment; Stress, Psychological |
Abstract |
This is the first study to investigate the short-term effects of high population density on captive chimpanzees (Pan troglodytes). Subjects of the study were 45 chimpanzees living in five different groups at the Yerkes Regional Primate Research Center. The groups were observed under two conditions: 1) when they had access to both the indoor and outdoor sections of their enclosures; 2) during cold days when they were locked into the indoor runs, which reduced the available space by more than half. Under the high-density condition, allogrooming and submissive greetings decreased, but juvenile play increased. Remarkably, the rate of various forms of agonistic behavior, such as aggression, bluff charge, bluff display, and hooting, occurred less frequently under the high-density condition. This general decrease in adult social activity, including agonistic behavior, can be interpreted as an inhibition strategy to reduce opportunities for conflict when interindividual distances are reduced. This strategy is probably effective only in the short run, however. Behavioral indicators of anxiety, such as rough scratching and yawning, showed elevated rates, suggesting increased social tension under the high-density condition. |
Address |
Yerkes Regional Primate Research Center, Emory University, Atlanta, GA 30322, USA |
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0275-2565 |
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PMID:9057966 |
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no |
Call Number |
refbase @ user @ |
Serial |
203 |
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