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	Author	Bergman, T.J.; Beehner, J.C.; Cheney, D.L.; Seyfarth, R.M.
	Title	Hierarchical classification by rank and kinship in baboons			Type	Journal Article
	Year	2003	Publication	Science (New York, N.Y.)	Abbreviated Journal	Science
	Volume	302	Issue	5648	Pages	1234-1236
	Keywords	Animals; Animals, Wild; Botswana; Cognition; Family; Female; Hierarchy, Social; Language; *Papio/psychology; Social Dominance; Vocalization, Animal
	Abstract	Humans routinely classify others according to both their individual attributes, such as social status or wealth, and membership in higher order groups, such as families or castes. They also recognize that people's individual attributes may be influenced and regulated by their group affiliations. It is not known whether such rule-governed, hierarchical classifications are specific to humans or might also occur in nonlinguistic species. Here we show that baboons recognize that a dominance hierarchy can be subdivided into family groups. In playback experiments, baboons respond more strongly to call sequences mimicking dominance rank reversals between families than within families, indicating that they classify others simultaneously according to both individual rank and kinship. The selective pressures imposed by complex societies may therefore have favored cognitive skills that constitute an evolutionary precursor to some components of human cognition.
	Address	Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA. thore@sas.upenn.edu
	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	1095-9203	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:14615544			Approved	no
	Call Number	refbase @ user @			Serial	689
Permanent link to this record



	Author	Vonk, J.
	Title	Gorilla ( Gorilla gorilla gorilla) and orangutan ( Pongo abelii) understanding of first- and second-order relations			Type	Journal Article
	Year	2003	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	6	Issue	2	Pages	77-86
	Keywords	Animals; Cognition; Color Perception; Female; Gorilla gorilla/psychology; Male; Pongo pygmaeus/*psychology; Task Performance and Analysis
	Abstract	Four orangutans and one gorilla matched images in a delayed matching-to-sample (DMTS) task based on the relationship between items depicted in those images, thus demonstrating understanding of both first- and second-order relations. Subjects matched items on the basis of identity, color, or shape (first-order relations, experiment 1) or same shape, same color between items (second-order relations, experiment 2). Four of the five subjects performed above chance on the second-order relations DMTS task within the first block of five sessions. High levels of performance on this task did not result from reliance on perceptual feature matching and thus indicate the capability for abstract relational concepts in two species of great ape.
	Address	York University, 4700 Keele Street,Toronto, ON M3J 1P3, Canada. jxv9592@louisiana.edu
	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	1435-9448	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:12687418			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2578
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	Author	Friedrich, A.M.; Clement, T.S.; Zentall, T.R.
	Title	Functional equivalence in pigeons involving a four-member class			Type	Journal Article
	Year	2004	Publication	Behavioural processes	Abbreviated Journal	Behav. Process.
	Volume	67	Issue	3	Pages	395-403
	Keywords	Animals; Association Learning; Behavior, Animal; Cognition; Columbidae; Concept Formation
	Abstract	Research suggests that animals are capable of forming functional equivalence relations or stimulus classes of the kind usually demonstrated by humans (e.g., the class defined by an object and the word for that object). In pigeons, such functional equivalences are typically established using many-to-one matching-to-sample in which two samples are associated with one comparison stimulus and two different samples are associated with the other. Evidence for the establishment of functional equivalences between samples associated with the same comparison comes from transfer tests. In Experiment 1, we found that pigeons can form a single class consisting of four members (many-to-one matching) when the alternative class has only one member (one-to-one matching). In Experiment 2, we ruled out the possibility that the pigeons acquired the hybrid one-to-one/many-to-one task by developing a single-code/default coding strategy as earlier research suggested that it might. Thus, pigeons can develop a functional class consisting of as many as four members, with the alternative class consisting of a single member.
	Address	Department of Psychology, University of Kentucky, Lexington, KY 40506-0044, USA
	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	0376-6357	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:15518989			Approved	no
	Call Number	refbase @ user @			Serial	228
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	Author	Williams, N.
	Title	Evolutionary psychologists look for roots of cognition			Type
	Year	1997	Publication	Science (New York, N.Y.)	Abbreviated Journal	Science
	Volume	275	Issue	5296	Pages	29-30
	Keywords	Animals; Behavior, Animal; Birds; Cognition; Evolution; Female; Humans; Macaca mulatta/psychology; Male; Memory; Reward; Social Sciences
	Abstract
	Address
	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:8999531			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2845
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	Author	Dunbar, R.
	Title	Evolution of the social brain			Type	Journal Article
	Year	2003	Publication	Science	Abbreviated Journal	Science
	Volume	302	Issue	5648	Pages	1160-1161
	Keywords	Animals; Animals, Wild; Cognition; Endorphins/physiology; Evolution; Female; Grooming; Hierarchy, Social; Language; Neocortex/anatomy & histology/physiology; Papio/physiology/psychology; Reproduction; *Social Behavior; Social Dominance; Social Support; Vocalization, Animal
	Abstract
	Address	School of Biological Sciences, University of Liverpool, Liverpool L69 7ZB, UK. rimd@liv.ac.uk
	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	1095-9203	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:14615522			Approved	no
	Call Number	refbase @ user @			Serial	548
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	Author	Mitchell, D.; Kirschbaum, E.H.; Perry, R.L.
	Title	Effects of neophobia and habituation on the poison-induced avoidance of exteroceptive stimuli in the rat			Type	Journal Article
	Year	1975	Publication	Journal of Experimental Psychology. Animal Behavior Processes	Abbreviated Journal	J Exp Psychol Anim Behav Process
	Volume	1	Issue	1	Pages	47-55
	Keywords	Animals; Avoidance Learning/drug effects; Awareness; Cognition; Conditioning, Operant; Feeding Behavior/drug effects; Habituation, Psychophysiologic; Injections, Intraperitoneal; Lithium/administration & dosage/poisoning; Male; Rats; Taste; Time Factors; Visual Perception
	Abstract	Two experiments on the role of neophobia in poison-induced aversions to exteroceptive stimuli are reported. In Experiment 1, rats were given either 10 or 25 days of habituation to the test situation prior to conditioning. Those animals with the longer habituation period avoided a complex of novel exteroceptive stimuli while those with the shorter habituation period did not. In Experiment 2 rats initially avoided the more novel of two containers, but gradually came to eat equal amounts from both. A single pairing of toxicosis with consumption from either the novel or the familiar container reinstated the avoidance of the novel container in both cases. The results were discussed in terms of an interaction between habituation and conditioning procedures. It was suggested that previously reported differences between interoceptive and exteroceptive conditioning effects may have been influenced by the differential novelty of the two classes of stimuli in the test situation. It was further suggested that non-contingently poisoned control groups should routinely be included in poison avoidance conditioning studies.
	Address
	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	0097-7403	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:1151289			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2791
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	Author	Osthaus, B.; Lea, S.E.G.; Slater, A.M.
	Title	Dogs (Canis lupus familiaris) fail to show understanding of means-end connections in a string-pulling task			Type	Journal Article
	Year	2005	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	8	Issue	1	Pages	37-47
	Keywords	Animals; Association Learning; Cognition; Dogs/psychology; Problem Solving
	Abstract	Domestic dogs (Canis lupus familiaris) were tested in four experiments for their understanding of means-end connections. In each of the experiments, the dogs attempted to retrieve a food treat that could be seen behind a barrier and which was connected, via string, to a within-reach wooden block. In the experiments, either one or two strings were present, but the treat was attached only to one string. Successful retrieval of the treat required the animals to pull the appropriate string (either by pawing or by grasping the wooden block in their jaws) until the treat emerged from under the barrier. The results showed that the dogs were successful if the treat was in a perpendicular line to the barrier, i.e. straight ahead, but not when the string was at an angle: in the latter condition, the typical response was a proximity error in that the dogs pawed or mouthed at a location closest in line to the treat. When two strings that crossed were present, the dogs tended to pull on the wrong string. The combined results from the experiments show that, although dogs can learn to pull on a string to obtain food, they do not spontaneously understand means-end connections involving strings.
	Address	School of Psychology, University of Exeter, Exeter, EX4 4QG, UK. b.osthaus@exeter.ac.uk
	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	1435-9448	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:15338446			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2513
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	Author	Gallup, G.G.J.
	Title	Do minds exist in species other than our own?			Type	Journal Article
	Year	1985	Publication	Neuroscience and Biobehavioral Reviews	Abbreviated Journal	Neurosci Biobehav Rev
	Volume	9	Issue	4	Pages	631-641
	Keywords	Animals; Awareness; Behavior, Animal; Child Psychology; Child, Preschool; Cognition; Consciousness; Evolution; Humans; Infant; Language; Pan troglodytes; Philosophy; Psychological Theory; Species Specificity
	Abstract	An answer to the question of animal awareness depends on evidence, not intuition, anecdote, or debate. This paper examines some of the problems inherent in an analysis of animal awareness, and whether animals might be aware of being aware is offered as a more meaningful distinction. A framework is presented which can be used to make a determination about the extent to which other species have experiences similar to ours based on their ability to make inferences and attributions about mental states in others. The evidence from both humans and animals is consistent with the idea that the capacity to use experience to infer the experience of others is a byproduct of self-awareness.
	Address
	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	0149-7634	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:4080281			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2808
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	Author	Murai, C.; Tomonaga, M.; Kamegai, K.; Terazawa, N.; Yamaguchi, M.K.
	Title	Do infant Japanese macaques ( Macaca fuscata) categorize objects without specific training?			Type	Journal Article
	Year	2004	Publication	Primates	Abbreviated Journal	Primates
	Volume	45	Issue	1	Pages	1-6
	Keywords	Analysis of Variance; Animals; Cognition; Concept Formation; Generalization, Stimulus; Japan; Macaca/psychology; Male
	Abstract	In the present study, we examined whether infant Japanese macaques categorize objects without any training, using a similar technique also used with human infants (the paired-preference method). During the familiarization phase, subjects were presented twice with two pairs of different objects from one global-level category. During the test phase, they were presented twice with a pair consisting of a novel familiar-category object and a novel global-level category object. The subjects were tested with three global-level categories (animal, furniture, and vehicle). It was found that they showed significant novelty preferences as a whole, indicating that they processed similarities between familiarization objects and novel familiar-category objects. These results suggest that subjects responded distinctively to objects without training, indicating the possibility that infant macaques possess the capacity for categorization.
	Address	Department of Psychology, Graduate School of Letters, Kyoto University, Sakyo, Kyoto 606-8501, Japan. cmurai@bun.kyoto-u.ac.jp
	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	0032-8332	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:14505179			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2813
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	Author	West, R.E.; Young, R.J.
	Title	Do domestic dogs show any evidence of being able to count?			Type	Journal Article
	Year	2002	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	5	Issue	3	Pages	183-186
	Keywords	Animal Feed; Animals; Behavior, Animal; Cognition; Dogs; Female; Male; *Mathematics; Reinforcement (Psychology); Visual Perception
	Abstract	Numerical competence has been demonstrated in a wide range of animal species. The level of numerical abilities shown ranges from simple relative numerousness judgements to true counting. In this study we used the preferential looking technique to test whether 11 pet dogs could count. The dogs were presented with three simple calculations: “1+1=2”; “1+1=1”; and “1+1=3”. These calculations were performed by presenting the dogs with treats that were placed behind a screen that allowed manipulation of the outcome of the calculation. When the dogs expected the outcome they spent the same amount of time looking at the result of the calculation as they did on the initial presentation. However, when the result was unexpected dogs spent significantly longer looking at the outcome of the calculation. The results suggest that the dogs were anticipating the outcome of the calculations they observed, thus suggesting that dogs may have a rudimentary ability to count.
	Address	De Montfort University-Lincoln, Caythorpe, Grantham, Lincolnshire, NG32 3EP, UK
	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	1435-9448	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:12357291			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2594
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