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Author |
Pickens, C.L.; Holland, P.C. |
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Title  |
Conditioning and cognition |
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Journal Article |
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Year |
2004 |
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Neuroscience and Biobehavioral Reviews |
Abbreviated Journal |
Neurosci Biobehav Rev |
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Volume |
28 |
Issue |
7 |
Pages |
651-661 |
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Keywords |
Animals; Association Learning/physiology; Cognition/*physiology; Conditioning (Psychology)/*physiology; Discrimination Learning/physiology; Humans; Memory; Models, Psychological; Reinforcement (Psychology); Visual Perception/physiology |
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Animals' abilities to use internal representations of absent objects to guide adaptive behavior and acquire new information, and to represent multiple spatial, temporal, and object properties of complex events and event sequences, may underlie many aspects of human perception, memory, and symbolic thought. In this review, two classes of simple associative learning tasks that address these core cognitive capacities are discussed. The first set, including reinforcer revaluation and mediated learning procedures, address the power of Pavlovian conditioned stimuli to gain access, through learning, to representations of upcoming events. The second set of investigations concern the construction of complex stimulus representations, as illustrated in studies of contextual learning, the conjunction of explicit stimulus elements in configural learning procedures, and recent studies of episodic-like memory. The importance of identifying both cognitive process and brain system bases of performance in animal models is emphasized. |
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Department of Psychological and Brain Sciences, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA |
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0149-7634 |
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PMID:15555675 |
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Equine Behaviour @ team @ |
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2803 |
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Author |
Marino, L. |
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Title |
Convergence of complex cognitive abilities in cetaceans and primates |
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Journal Article |
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Year |
2002 |
Publication |
Brain, Behavior and Evolution |
Abbreviated Journal |
Brain Behav Evol |
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59 |
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1-2 |
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21-32 |
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Animal Communication; Animals; Brain/physiology; Cerebral Cortex/physiology; Cetacea/*physiology; Cognition/*physiology; *Evolution; Humans; Intelligence; Primates/*physiology |
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What examples of convergence in higher-level complex cognitive characteristics exist in the animal kingdom? In this paper I will provide evidence that convergent intelligence has occurred in two distantly related mammalian taxa. One of these is the order Cetacea (dolphins, whales and porpoises) and the other is our own order Primates, and in particular the suborder anthropoid primates (monkeys, apes, and humans). Despite a deep evolutionary divergence, adaptation to physically dissimilar environments, and very different neuroanatomical organization, some primates and cetaceans show striking convergence in social behavior, artificial 'language' comprehension, and self-recognition ability. Taken together, these findings have important implications for understanding the generality and specificity of those processes that underlie cognition in different species and the nature of the evolution of intelligence. |
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Neuroscience and Behavioral Biology Program, Emory University, Atlanta, Ga. 30322, USA. lmarino@emory.edu |
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0006-8977 |
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PMID:12097858 |
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Equine Behaviour @ team @ |
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4158 |
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Lagarde, J.; Kelso, J.A.S.; Peham, C.; Licka, T. |
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Title |
Coordination dynamics of the horse-rider system |
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Journal Article |
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Year |
2005 |
Publication |
Journal of Motor Behavior |
Abbreviated Journal |
J Mot Behav |
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37 |
Issue |
6 |
Pages |
418-424 |
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Animals; Biomechanics; *Horses; Humans; Professional Competence; Psychomotor Performance/*physiology; *Sports; Time Factors |
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The authors studied the interaction between rider and horse by measuring their ensemble motions in a trot sequence, comparing 1 expert and 1 novice rider. Whereas the novice's movements displayed transient departures from phase synchrony, the expert's motions were continuously phase-matched with those of the horse. The tight ensemble synchrony between the expert and the horse was accompanied by an increase in the temporal regularity of the oscillations of the trunk of the horse. Observed differences between expert and novice riders indicated that phase synchronization is by no means perfect but requires extended practice. Points of contact between horse and rider may haptically convey effective communication between them. |
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Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL 33431-771, USA. lagarde@ccs.fau.edu |
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0022-2895 |
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PMID:16280312 |
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Equine Behaviour @ team @ |
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4034 |
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Koolhaas, J.M.; Korte, S.M.; De Boer, S.F.; Van Der Vegt, B.J.; Van Reenen, C.G.; Hopster, H.; De Jong, I.C.; Ruis, M.A.W.; Blokhuis, H.J. |
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Coping styles in animals: current status in behavior and stress-physiology |
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1999 |
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Neuroscience & Biobehavioral Reviews |
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23 |
Issue |
7 |
Pages |
925-935 |
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Coping; Aggression; Stress; Disease; Corticosterone |
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This paper summarizes the current views on coping styles as a useful concept in understanding individual adaptive capacity and vulnerability to stress-related disease. Studies in feral populations indicate the existence of a proactive and a reactive coping style. These coping styles seem to play a role in the population ecology of the species. Despite domestication, genetic selection and inbreeding, the same coping styles can, to some extent, also be observed in laboratory and farm animals. Coping styles are characterized by consistent behavioral and neuroendocrine characteristics, some of which seem to be causally linked to each other. Evidence is accumulating that the two coping styles might explain a differential vulnerability to stress mediated disease due to the differential adaptive value of the two coping styles and the accompanying neuroendocrine differentiation. |
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Equine Behaviour @ team @ |
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4416 |
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Author |
Schmidt, A.; Möstl, E.; Wehnert, C.; Aurich, J.; Müller, J.; Aurich, C. |
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Title |
Cortisol release and heart rate variability in horses during road transport |
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Journal Article |
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Year |
2010 |
Publication |
Hormones and Behavior |
Abbreviated Journal |
Horm. Behav. |
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Volume |
57 |
Issue |
2 |
Pages |
209-215 |
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Keywords |
Horse; Transport; Cortisol; Heart rate variability |
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Based on plasma cortisol concentrations it is widely accepted that transport is stressful to horses. So far, cortisol release during transport has not been evaluated in depth by non-invasive techniques such as analysis of salivary cortisol and faecal cortisol metabolites. Transport also causes changes in heart rate and heart rate variability (HRV). In this study, salivary cortisol, faecal cortisol metabolites, heart rate and HRV in horses transported by road for short (one and 3.5 h) and medium duration (8 h) were determined. With the onset of transport, salivary cortisol increased immediately but highest concentrations were measured towards the end of transport (4.1 ± 1.6, 4.5 ± 2.6, 6.5 ± 1.8 ng/ml in horses transported for one, 3.5 and 8 h, respectively). Faecal cortisol metabolite concentrations did not change during transport, but 1 day after transport for 3.5 and 8 h had increased significantly (p < 0.01), reflecting intestinal passage time. Compared to salivary cortisol, changes in faecal cortisol metabolites were less pronounced. Heart rate increased and beat-to-beat (RR) interval decreased (p < 0.05) with the onset of transport. Standard deviation of heart rate increased while root mean square of successive RR differences (RMSSD) decreased in horses transported for 3.5 (from 74 ± 5 to 45 ± 6 ms) and 8 h (from 89.7 ± 7 to 59 ± 7 ms), indicating a reduction in vagal tone. In conclusion, transport of horses over short and medium distances leads to increased cortisol release and changes in heart rate and HRV indicative of stress. The degree of these changes is related to the duration of transport. Salivary cortisol is a sensitive parameter to detect transient changes in cortisol release. |
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0018-506x |
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Equine Behaviour @ team @ |
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5387 |
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Author |
Krama, T. [1]; Krams, I. [2] |
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Title |
Cost of mobbing call to breeding pied flycatcher, Ficedula hypoleuca |
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Journal Article |
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Year |
2005 |
Publication |
Behavioral Ecology |
Abbreviated Journal |
Behav. Ecol. |
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Volume |
16 |
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37-40 |
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Keywords |
ntipredator behavior, Ficedula hypoleuca, mobbing calls, mobbing costs, pied flycatcher. |
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Mobbing signals advertise the location of a stalking predator to all prey in an area and recruit them into the inspection aggregation. Such behavior usually causes the predator to move to another area. However, mobbing calls could be eavesdropped by other predators. Because the predation cost of mobbing calls is poorly known, we investigated whether the vocalizations of the mobbing pied flycatcher, Ficedula hypoleuca, a small hole nesting passerine, increase the risk of nest predation. We used mobbing calls of pied flycatchers to examine if they could lure predators such as the marten, Martes martes. This predator usually hunts by night and may locate its mobbing prey while resting nearby during the day. Within each of 56 experimental plots, from the top of one nest-box we played back mobbing sounds of pied flycatchers, whereas blank tapes were played from the top of another nest-box. The trials with mobbing calls were carried out before sunset. We put pieces of recently abandoned nests of pied flycatchers and a quail, Coturnix coturnix, egg into each of the nest-boxes. Nest-boxes with playbacks of mobbing calls were depredated by martens significantly more than were nest-boxes with blank tapes. The results of the present study indicate that repeated conspicuous mobbing calls may carry a significant cost for birds during the breeding season. |
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Equine Behaviour @ team @ |
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4092 |
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Author |
Henzi, S.; Lusseau, D.; Weingrill, T.; van Schaik, C.; Barrett, L. |
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Title |
Cyclicity in the structure of female baboon social networks |
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Journal Article |
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2009 |
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Behavioral Ecology and Sociobiology |
Abbreviated Journal |
Behav. Ecol. Sociobiol. |
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63 |
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7 |
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1015-1021-1021 |
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Biomedical and Life Sciences |
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There is an established and very influential view that primate societies have identifiable, persistent social organizations. It assumes that association patterns reflect long-term strategic interests that are not qualitatively perturbed by short-term environmental variability. We used data from two baboon troops in markedly different habitats over three consecutive seasons to test this assumption. Our results demonstrate pronounced cyclicity in the extent to which females maintained differentiated relationships. When food was plentiful, the companionships identified by social network analysis in the food-scarce season disappeared and were replaced by casual acquaintanceships more representative of mere gregariousness. Data from the fourth, food-scarce, season at one site indicated that few companions were re-united. It is likely that this reflected stochastic variation in individual circumstances. These results suggest that attention could profitably be paid to the effects of short-term local contingencies on social dynamics, and has implications for current theories of primate cognitive evolution. |
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Springer Berlin / Heidelberg |
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0340-5443 |
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Equine Behaviour @ team @ |
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5203 |
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Kurtzman H.S.; Church R.M.; Crystal J.D. |
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Title |
Data archiving for animal cognition research: Report of an NIMH workshop |
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2002 |
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Animal Learning & Behavior |
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30 |
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405-412 |
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refbase @ user @ |
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3504 |
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Watt, L. M.; McDonnell, S. M. |
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Demonstration of Concept Formation in the Horse. |
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2001 |
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Equine Behavior Laboratory, University of Pennsylvania School of Veterinary Medicine, August 2001 Interim Report. |
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University of Pennsylvania |
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Philadephia |
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Equine Behaviour @ team @ |
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5449 |
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Reid, P.J.; Shettleworth, S.J. |
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Detection of cryptic prey: search image or search rate? |
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1992 |
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Journal of experimental psychology. Animal behavior processes |
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J Exp Psychol Anim Behav Process |
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18 |
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3 |
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273-286 |
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Animals; Appetitive Behavior; *Attention; Color Perception; Columbidae; *Discrimination Learning; Food Preferences/psychology; *Imagination; *Mental Recall; *Predatory Behavior |
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Animals' improvement in capturing cryptic prey with experience has long been attributed to a perceptual mechanism, the specific search image. Detection could also be improved by adjusting rate of search. In a series of studies using both naturalistic and operant search tasks, pigeons searched for wheat, dyed to produce 1 conspicuous and 2 equally cryptic prey types. Contrary to the predictions of the search-rate hypothesis, pigeons given a choice between the 2 cryptic types took the type experienced most recently. However, experience with 1 cryptic type improved accuracy on the other cryptic type, a result inconsistent with a search image specific to 1 prey type. Search image may better be thought of as priming of attention to those features of the prey type that best distinguish the prey from the background. |
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University of Toronto, Ontario, Canada |
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0097-7403 |
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PMID:1619395 |
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refbase @ user @ |
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381 |
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