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| Author |
Byrne, R.W.; Bates, L.A. |
| Title |
Why are animals cognitive? |
Type |
Journal Article |
| Year |
2006 |
Publication |
Current Biology : CB |
Abbreviated Journal |
Curr Biol |
| Volume |
16 |
Issue |
12 |
Pages |
R445-8 |
| Keywords |
Animals; Arachnida/physiology; *Association Learning; *Behavior, Animal; *Cognition; Cooperative Behavior; Falconiformes/physiology; Pan troglodytes/physiology; Parrots/physiology; Passeriformes/physiology |
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Centre for Social Learning and Cognitive Evolution, and Scottish Primate Research Group, School of Psychology, University of St Andrews, Fife KY16 9JP, Scotland |
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0960-9822 |
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PMID:16781995 |
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Equine Behaviour @ team @ |
Serial |
4708 |
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| Author |
Sturz, B.R.; Bodily, K.D.; Katz, J.S. |
| Title |
Evidence against integration of spatial maps in humans |
Type |
Journal Article |
| Year |
2006 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
9 |
Issue |
3 |
Pages |
207-217 |
| Keywords |
Adult; *Association Learning; Computer Graphics; Humans; Male; *Orientation; *Problem Solving; Reference Values; *Space Perception; *Spatial Behavior; User-Computer Interface |
| Abstract |
A dynamic 3-D virtual environment was constructed for humans as an open-field analogue of Blaisdell and Cook's (2005) pigeon foraging task to determine if humans, like pigeons, were capable of integrating separate spatial maps. Participants used keyboard keys and a mouse to search for a hidden goal in a 4x4 grid of raised cups. During Phase 1 training, a goal was consistently located between two landmarks (Map 1: blue T and red L). During Phase 2 training, a goal was consistently located down and left of a single landmark (Map 2: blue T). Transfer trials were then conducted in which participants were required to make choices in the presence of the red L alone. Cup choices during transfer assessed participants' strategies: association (from Map 1), generalization (from Map 2), or integration (combining Map 1 and 2). During transfer, cup choices increased to a location which suggested an integration strategy and was consistent with results obtained with pigeons. However, additional analyses of the human data suggested participants initially used a generalization strategy followed by a progressive shift in search behavior away from the red L. This shift in search behavior during transfer was responsible for the changes in cup choices across transfer trials and was confirmed by a control condition. These new analyses offer an alternative explanation to the spatial integration account proposed for pigeons. |
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Department of Psychology, Auburn University, Auburn, AL 36849, USA. sturzbr@auburn.edu |
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English |
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1435-9448 |
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PMID:16767470 |
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no |
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Equine Behaviour @ team @ |
Serial |
2464 |
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Chiesa, A.D.; Pecchia, T.; Tommasi, L.; Vallortigara, G. |
| Title |
Multiple landmarks, the encoding of environmental geometry and the spatial logics of a dual brain |
Type |
Journal Article |
| Year |
2006 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
9 |
Issue |
4 |
Pages |
281-293 |
| Keywords |
Animals; Association Learning/*physiology; Chickens; *Cues; Dominance, Cerebral/*physiology; *Environment; Exploratory Behavior/*physiology; Logic; Space Perception/*physiology; Spatial Behavior/physiology |
| Abstract |
A series of place learning experiments was carried out in young chicks (Gallus gallus) in order to investigate how the geometry of a landmark array and that of a walled enclosure compete when disoriented animals could rely on both of them to re-orient towards the centre of the enclosure. A square-shaped array (four wooden sticks) was placed in the middle of a square-shaped enclosure, the two structures being concentric. Chicks were trained to ground-scratch to search for food hidden in the centre of the enclosure (and the array). To check for effects of array degradation, one, two, three or all landmarks were removed during test trials. Chicks concentrated their searching activity in the central area of the enclosure, but their accuracy was inversely contingent on the number of landmarks removed; moreover, the landmarks still present within the enclosure appeared to influence the shape of the searching patterns. The reduction in the number of landmarks affected the searching strategy of chicks, suggesting that they had focussed mainly on local cues when landmarks were present within the enclosure. When all the landmarks were removed, chicks searched over a larger area, suggesting an absolute encoding of distances from the local cues and less reliance on the relationships provided by the geometry of the enclosure. Under conditions of monocular vision, chicks tended to rely on different strategies to localize the centre on the basis of the eye (and thus the hemisphere) in use, the left hemisphere attending to details of the environment and the right hemisphere attending to the global shape. |
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Department of Psychology and B.R.A.I.N. Centre for Neuroscience, University of Trieste, via S. Anastasio 12, 34100, Trieste, Italy |
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English |
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1435-9448 |
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PMID:16941155 |
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no |
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Equine Behaviour @ team @ |
Serial |
2443 |
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| Author |
Lansade, L.; Bouissou, M.-F.; Erhard, H.W. |
| Title |
Reactivity to isolation and association with conspecifics: A temperament trait stable across time and situations |
Type |
Journal Article |
| Year |
2008 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
| Volume |
106 |
Issue |
2-4 |
Pages |
355-373 |
| Keywords |
Horse; Equus caballus; Temperament; Trait; Isolation; Conspecific association; Stability |
| Abstract |
A temperament trait is generally defined as individual differences in behaviour that are present early in life and relatively stable across situations and over time. The aim of this study was to test the existence of a trait <<gregariousness>> in horses, by testing the stability across situations and over time of the responses to different social events. Sixty-six Welsh ponies and 44 Anglo-Arab horses were successively tested at 8 months and 1.5 years of age. Among them, 33 ponies and 21 horses were also tested at 2.5 years of age. They were submitted to four test situations: isolation and separation from, attraction towards and passing conspecifics. We carried out the analysis using each of four test groups as a unit (e.g. 33 Welsh ponies born in 2001, tested in isolation). Isolation and separation stood out as tests that showed a high consistency within test, across tests and across time. The most interesting behavioural parameter was the frequency of neighing, which was well correlated with other parameters measured in the same tests, such as defecation, locomotion and vigilance, as well as across the 3 years (e.g. for separation test: 0.41 < R < 0.61). Therefore, the behaviour of neighing observed in separation or isolation tests as early as 8 months of age appears to be a good indicator of similar behaviour in similar situations later in life, but also of other behaviours which can render the horse difficult to use. No parameter recorded during the attraction test presented stability across situations and time: the reactions to this test were not the expression of a stable characteristic of the individual and did not reflect the same characteristic as the three other tests. Of the different parameters recorded during the passing conspecifics test, the time to cross the arrival line near conspecifics showed good stability across years (0.35 < R < 0.68). This parameter was also correlated with many others recorded during the same test, and also, to a certain extent, to the frequency of neighing in the isolation and separation tests. This stability across responses expressed in various social contexts, and this stability over time, from 8 months to 2.5 years of age suggest the existence of a trait of gregariousness in the horse. From a practical point of view, that means it is possible to estimate the level of gregariousness of a horse as early as 8 months of age. Furthermore, additional analysis shows that gregariousness decreases with age. |
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Admin @ knut @ |
Serial |
4350 |
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Sueur, C.; Jacobs, A.; Amblard, F.; Petit, O.; King, A.J. |
| Title |
How can social network analysis improve the study of primate behavior? |
Type |
Journal Article |
| Year |
2010 |
Publication |
American Journal of Primatology |
Abbreviated Journal |
Am. J. Primatol. |
| Volume |
73 |
Issue |
8 |
Pages |
703-719 |
| Keywords |
interaction; association; social system; social structure; methodology; behavioral sampling |
| Abstract |
Abstract When living in a group, individuals have to make trade-offs, and compromise, in order to balance the advantages and disadvantages of group life. Strategies that enable individuals to achieve this typically affect inter-individual interactions resulting in nonrandom associations. Studying the patterns of this assortativity using social network analyses can allow us to explore how individual behavior influences what happens at the group, or population level. Understanding the consequences of these interactions at multiple scales may allow us to better understand the fitness implications for individuals. Social network analyses offer the tools to achieve this. This special issue aims to highlight the benefits of social network analysis for the study of primate behaviour, assessing it's suitability for analyzing individual social characteristics as well as group/population patterns. In this introduction to the special issue, we first introduce social network theory, then demonstrate with examples how social networks can influence individual and collective behaviors, and finally conclude with some outstanding questions for future primatological research. Am. J. Primatol. 73:703?719, 2011. ? 2011 Wiley-Liss, Inc. |
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Wiley-Blackwell |
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0275-2565 |
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doi: 10.1002/ajp.20915 |
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Equine Behaviour @ team @ |
Serial |
6410 |
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| Author |
Whitehead, H. |
| Title |
SOCPROG programs: analysing animal social structures |
Type |
Journal Article |
| Year |
2009 |
Publication |
Behavioral Ecology and Sociobiology |
Abbreviated Journal |
Behav. Ecol. Sociobiol. |
| Volume |
63 |
Issue |
5 |
Pages |
765-778 |
| Keywords |
Social analysis – Software – Association |
| Abstract |
Abstract SOCPROG is a set of programs which analyses data on animal associations. Data usually come from observations of the social behaviour of individually identifiable animals. Associations among animals, sampling periods, restrictions on the data and association indices can be defined very flexibly. SOCPROG can analyse data sets including 1,000 or more individuals. Association matrices are displayed using sociograms, principal coordinates analysis, multidimensional scaling and cluster analyses. Permutation tests, Mantel and related tests and matrix correlation methods examine hypotheses about preferred associations among individuals and classes of individual. Weighted network statistics are calculated and can be tested against null hypotheses. Temporal analyses include displays of lagged association rates (rates of reassociation following an association). Models can be fitted to lagged association rates. Multiple association measures, including measures produced by other programs such as genetic or range use data, may be analysed using Mantel tests and principal components analysis. SOCPROG also performs mark-recapture population analyses and movement analyses. SOCPROG is written in the programming language MATLAB and may be downloaded free from the World Wide Web. |
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Equine Behaviour @ team @ |
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5026 |
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| Author |
Jackson, R.R.; Li, D. |
| Title |
One-encounter search-image formation by araneophagic spiders |
Type |
Journal Article |
| Year |
2004 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
7 |
Issue |
4 |
Pages |
247-254 |
| Keywords |
Animals; Appetitive Behavior; *Association Learning; *Attention; Choice Behavior; Field Dependence-Independence; *Food Preferences; *Pattern Recognition, Visual; *Predatory Behavior; Signal Detection (Psychology); *Spiders |
| Abstract |
An experimental study of search-image use by araneophagic jumping spiders (i.e., salticid spiders that prey routinely on other spiders) supports five conclusions. First, araneophagic salticids have an innate predisposition to form search images for specific prey from their preferred prey category (spiders) rather than for prey from a non-preferred category (insects). Second, single encounters are sufficient for forming search images. Third, search images are based on selective attention specifically to optical cues. Fourth, there are trade-offs in attention during search-image use (i.e., forming a search image for one type of spider diminishes the araneophagic salticid's attention to other spiders). Fifth, the araneophagic salticid's adoption of search images is costly to the prey (i.e., when the araneophagic salticid adopts a search, the prey's prospects for surviving encounters with the araneophagic salticid are diminished). Cognitive and ecological implications of search-image use are discussed. |
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Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore, 117543, Singapore. dbslidq@nus.edu.sg |
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English |
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1435-9448 |
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PMID:15118915 |
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no |
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Equine Behaviour @ team @ |
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2524 |
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| Author |
Rilling, M.E.; Neiworth, J.J. |
| Title |
How animals use images |
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Journal Article |
| Year |
1991 |
Publication |
Science Progress |
Abbreviated Journal |
Sci Prog |
| Volume |
75 |
Issue |
298 Pt 3-4 |
Pages |
439-452 |
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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. |
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Department of Psychology, Michigan State University, East Lansing 48824 |
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English |
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0036-8504 |
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PMID:1842858 |
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no |
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Equine Behaviour @ team @ |
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2831 |
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Pickens, C.L.; Holland, P.C. |
| Title |
Conditioning and cognition |
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Journal Article |
| Year |
2004 |
Publication |
Neuroscience and Biobehavioral Reviews |
Abbreviated Journal |
Neurosci Biobehav Rev |
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28 |
Issue |
7 |
Pages |
651-661 |
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Animals; Association Learning/physiology; Cognition/*physiology; Conditioning (Psychology)/*physiology; Discrimination Learning/physiology; Humans; Memory; Models, Psychological; Reinforcement (Psychology); Visual Perception/physiology |
| Abstract |
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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no |
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Equine Behaviour @ team @ |
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2803 |
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Cole, P.D.; Adamo, S.A. |
| Title |
Cuttlefish (Sepia officinalis: Cephalopoda) hunting behavior and associative learning |
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Journal Article |
| Year |
2005 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
8 |
Issue |
1 |
Pages |
27-30 |
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Animals; *Appetitive Behavior; *Association Learning; *Conditioning, Classical; Female; Male; *Mollusca; Photic Stimulation; *Predatory Behavior |
| Abstract |
Because most learning studies in cephalopods have been performed on octopods, it remains unclear whether such abilities are specific to octopus, or whether they correlate with having a larger and more centrally organized brain. To investigate associative learning in a different cephalopod, six sexually mature cuttlefish (Sepia officinalis) participated in a counterbalanced, within-subjects, appetitive, classical conditioning procedure. Two plastic spheres (conditioned stimuli, CSs), differing in brightness, were presented sequentially. Presentation of the CS+ was followed 5 s later by a live feeder fish (unconditioned stimulus, US). Cuttlefish began to attack the CS+ with the same type of food-acquisition seizures used to capture the feeder fish. After seven blocks of training (42 presentations of each CS) the difference in seizure probability between CS+ and CS- trials more than doubled; and was found to be significantly higher in late versus early blocks. These results indicate that cuttlefish exhibit autoshaping under some conditions. The possible ecological significance of this type of learning is briefly discussed. |
| Address |
Department of Psychology, Dalhousie University Halifax, Nova Scotia, Canada |
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1435-9448 |
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PMID:15592760 |
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Equine Behaviour @ team @ |
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2500 |
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