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	Author	Hopkins, W.D.; Washburn, D.A.
	Title	Matching visual stimuli on the basis of global and local features by chimpanzees (Pan troglodytes) and rhesus monkeys (Macaca mulatta)			Type	Journal Article
	Year	2002	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	5	Issue	1	Pages	27-31
	Keywords	Animals; Discrimination Learning; Facial Expression; Female; Macaca mulatta/physiology/psychology; Male; Pan troglodytes/physiology/psychology; Perceptual Masking; Social Perception; Visual Perception/*physiology
	Abstract	This study was designed to examine whether chimpanzees and monkeys exhibit a global-to-local precedence in the processing of hierarchically organized compound stimuli, as has been reported for humans. Subjects were tested using a sequential matching-to-sample paradigm using stimuli that differed on the basis of their global configuration or local elements, or on both perceptual attributes. Although both species were able to discriminate stimuli on the basis of their global configuration or local elements, the chimpanzees exhibited a global-to-local processing strategy, whereas the rhesus monkeys exhibited a local-to-global processing strategy. The results suggest that perceptual and attentional mechanisms underlying information-processing strategies may account for differences in learning by primates.
	Address	Department of Psychology, Berry College, Mount Berry, GA 30149, USA. whopkins@berry.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:11957399			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2613
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	Author	Hunt, G.R.; Gray, R.D.
	Title	Direct observations of pandanus-tool manufacture and use by a New Caledonian crow (Corvus moneduloides)			Type	Journal Article
	Year	2004	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	7	Issue	2	Pages	114-120
	Keywords	Animals; Behavior, Animal; Discrimination Learning; Feeding Behavior; Functional Laterality; Manufactured Materials; Plant Leaves; Songbirds
	Abstract	New Caledonian crows are reported to have impressive pandanus-tool manufacture abilities. These claims are based on an extensive artefact record. However, inferring behavioural and cognitive abilities without direct observation of tool manufacture is problematic. Here we report (and document on video) direct observations of a crow making and using stepped pandanus tools at Pic Ningua. We observed (1) a bias for making tools on left edges consistent with that previously found at the site, (2) faithful manufacture of a stepped design with high overall congruence in the shapes of tools, (3) the use of convergent rips to first form the tapered end working away from the trunk then the wide end working towards the trunk, (4) appropriate functional use of stepped tools by use of the leaf-edge barbs to hook food from holes, and (5) consistent holding of tools on the left side of its head when using them. Our observations verify most of the claims based on the artefact record, but the crow's exact manufacture technique was slightly different to that inferred previously.
	Address	Department of Psychology, University of Auckland, 92019 Auckland, New Zealand. grhunt10@hotmail.com
	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:15069611			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2529
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	Author	Ikeda, M.; Patterson, K.; Graham, K.S.; Ralph, M.A.L.; Hodges, J.R.
	Title	A horse of a different colour: do patients with semantic dementia recognise different versions of the same object as the same?			Type	Journal Article
	Year	2006	Publication	Neuropsychologia	Abbreviated Journal	Neuropsychologia
	Volume	44	Issue	4	Pages	566-575
	Keywords	Adult; Aged; Anomia/diagnosis/psychology; Atrophy; Attention; Color Perception; Dementia/diagnosis/psychology; Discrimination Learning; Dominance, Cerebral; Female; Humans; Male; Memory, Short-Term; Middle Aged; Neuropsychological Tests; Orientation; *Pattern Recognition, Visual; Reference Values; Retention (Psychology); Semantics; Size Perception; Temporal Lobe/pathology
	Abstract	Ten patients with semantic dementia resulting from bilateral anterior temporal lobe atrophy, and 10 matched controls, were tested on an object recognition task in which they were invited to choose (from a four-item array) the picture representing “the same thing” as an object picture that they had just inspected and attempted to name. The target in the response array was never physically identical to the studied picture but differed from it – in the various conditions – in size, angle of view, colour or exemplar (e.g. a different breed of dog). In one test block for each patient, the response array was presented immediately after the studied picture was removed; in another block, a 2 min filled delay was inserted between study and test. The patients performed relatively well when the studied object and target response differed only in the size of the picture on the page, but were significantly impaired as a group in the other three type-of-change conditions, even with no delay between study and test. The five patients whose structural brain imaging revealed major right-temporal atrophy were more impaired overall, and also more affected by the 2 min delay, than the five patients with an asymmetric pattern characterised by predominant left-sided atrophy. These results are interpreted in terms of a hypothesis that successful classification of an object token as an object type is not a pre-semantic ability but rather results from interaction of perceptual and conceptual processing.
	Address	Department of Neuropsychiatry, Ehime University School of Medicine, Shitsukawa, Toon City, Ehime 791-0295, Japan. mikeda@m.ehime-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	0028-3932	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:16115656			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4059
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	Author	Imura, T.; Tomonaga, M.
	Title	Perception of depth from shading in infant chimpanzees ( Pan troglodytes)			Type	Journal Article
	Year	2003	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	6	Issue	4	Pages	253-258
	Keywords	Age Factors; Animals; Contrast Sensitivity/physiology; Depth Perception/physiology; Discrimination Learning/physiology; Female; Male; Pan troglodytes/growth & development/physiology/*psychology; Pattern Recognition, Visual/physiology
	Abstract	We investigated the ability to perceive depth from shading, one of the pictorial depth cues, in three chimpanzee infants aged 4-10 months old, using a preferential reaching task commonly used to study pictorial depth perception in human infants. The chimpanzee infants reached significantly more to three-dimensional toys than to pictures thereof and more to the three-dimensional convex than to the concave. Furthermore, two of the three infants reached significantly more to the photographic convex than to the photographic concave. These infants also looked longer at the photographic convex than the concave. Our results suggest that chimpanzees perceive, at least as early as the latter half of the first year of life, pictorial depth defined by shading information. Photographic convexes contain richer information about pictorial depth (e.g., attached shadow, cast shadow, highlighted area, and global difference in brightness) than simple computer-graphic graded patterns. These cues together might facilitate the infants' perception of depth from shading.
	Address	Graduate School of Humanities, Kwansei Gakuin University, Uegahara, Nishinomiya, Hyogo 662-8501, Japan
	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:14610661			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2550
Permanent link to this record



	Author	Izumi, A.; Kojima, S.
	Title	Matching vocalizations to vocalizing faces in a chimpanzee (Pan troglodytes)			Type	Journal Article
	Year	2004	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	7	Issue	3	Pages	179-184
	Keywords	Acoustic Stimulation; Animal Communication; Animals; Discrimination Learning; Facial Expression; Female; Individuality; Pan troglodytes/psychology; Photic Stimulation; Recognition (Psychology); Vocalization, Animal
	Abstract	Auditory-visual processing of species-specific vocalizations was investigated in a female chimpanzee named Pan. The basic task was auditory-visual matching-to-sample, where Pan was required to choose the vocalizer from two test movies in response to a chimpanzee's vocalization. In experiment 1, movies of vocalizing and silent faces were paired as the test movies. The results revealed that Pan recognized the status of other chimpanzees whether they vocalized or not. In experiment 2, two different types of vocalizing faces of an identical individual were prepared as the test movies. Pan recognized the correspondence between vocalization types and faces. These results suggested that chimpanzees possess crossmodal representations of their vocalizations, as do humans. Together with the ability of vocal individual recognition, this ability might reflect chimpanzees' profound understanding of the status of other individuals.
	Address	Primate Research Institute, Kyoto University, Kanrin, Inuyama, 484-8506, Aichi, Japan. izumi@pri.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	1435-9448	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:15015035			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2541
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	Author	Kaiser, D.H.; Zentall, T.R.; Neiman, E.
	Title	Timing in pigeons: effects of the similarity between intertrial interval and gap in a timing signal			Type	Journal Article
	Year	2002	Publication	Journal of experimental psychology. Animal behavior processes	Abbreviated Journal	J Exp Psychol Anim Behav Process
	Volume	28	Issue	4	Pages	416-422
	Keywords	Animals; Attention; Columbidae; Conditioning, Operant; Discrimination Learning; Mental Recall; Probability Learning; Reinforcement (Psychology); Reinforcement Schedule; Retention (Psychology); Time Factors; *Time Perception/physiology
	Abstract	Previous research suggests that when a fixed interval is interrupted (known as the gap procedure), pigeons tend to reset memory and start timing from 0 after the gap. However, because the ambient conditions of the gap typically have been the same as during the intertrial interval (ITI), ambiguity may have resulted. In the present experiment, the authors found that when ambient conditions during the gap were similar to the ITI, pigeons tended to reset memory, but when ambient conditions during the gap were different from the ITI, pigeons tended to stop timing, retain the duration of the stimulus in memory, and add to that time when the stimulus reappeared. Thus, when the gap was unambiguous, pigeons timed accurately.
	Address	Department of Psychology, East Carolina University, Greenville, North Carolina 27858, USA. kaiserd@mail.ecu.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	0097-7403	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:12395499			Approved	no
	Call Number	refbase @ user @			Serial	238
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	Author	Kelly, D.M.; Spetch, M.L.
	Title	Pigeons encode relative geometry			Type	Journal Article
	Year	2001	Publication	Journal of Experimental Psychology. Animal Behavior Processes	Abbreviated Journal	J Exp Psychol Anim Behav Process
	Volume	27	Issue	4	Pages	417-422
	Keywords	Animals; Behavior, Animal/physiology; Cognition/physiology; Columbidae; Discrimination Learning/physiology; Form Perception/physiology; Space Perception/*physiology
	Abstract	Pigeons were trained to search for hidden food in a rectangular environment designed to eliminate any external cues. Following training, the authors administered unreinforced test trials in which the geometric properties of the apparatus were manipulated. During tests that preserved the relative geometry but altered the absolute geometry of the environment, the pigeons continued to choose the geometrically correct corners, indicating that they encoded the relative geometry of the enclosure. When tested in a square enclosure, which distorted both the absolute and relative geometry, the pigeons randomly chose among the 4 corners, indicating that their choices were not based on cues external to the apparatus. This study provides new insight into how metric properties of an environment are encoded by pigeons.
	Address	Department of Psychology, University of Alberta, Edmonton, Alberta, Canada, T6G 2E9. kelly@bio.psy.ruhr-uni-bochum.de
	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:11676090			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2770
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	Author	Kitchen, D.M.; Cheney, D.L.; Seyfarth, R.M.
	Title	Male chacma baboons (Papio hamadryas ursinus) discriminate loud call contests between rivals of different relative ranks			Type	Journal Article
	Year	2005	Publication	Animal cognition	Abbreviated Journal	Anim. Cogn.
	Volume	8	Issue	1	Pages	1-6
	Keywords	Acoustic Stimulation; Animals; Discrimination Learning; Hierarchy, Social; Male; Papio hamadryas/psychology; Social Dominance; *Vocalization, Animal
	Abstract	Males in multi-male groups of chacma baboons (Papio hamadryas ursinus) in Botswana compete for positions in a linear dominance hierarchy. Previous research suggests that males treat different categories of rivals differently; competitive displays between males of similar rank are more frequent and intense than those between disparately ranked males. Here we test whether males also respond differently to male-male interactions in which they are not directly involved, using playbacks of the loud 'wahoo' calls exchanged between competing males in aggressive displays. We played paired sequences of vocal contests between two adjacently ranked and two disparately ranked males to ten subjects, half ranking below the signalers in the call sequences and half above. Subjects who ranked above the two signalers showed stronger responses than lower-ranking subjects. Higher-ranking subjects also responded more strongly to sequences involving disparately ranked, as opposed to adjacently ranked opponents, suggesting that they recognized those individuals' relative ranks. Strong responses to sequences between disparately ranked opponents might have occurred either because such contests typically involve resources of high fitness value (defense of meat, estrous females or infants vulnerable to infanticide) or because they indicate a sudden change in one contestant's condition. In contrast, subjects who ranked lower than the signalers responded equally strongly to both types of sequences. These subjects may have been able to distinguish between the two categories of opponents but did not respond differently to them because they had little to lose or gain by a rank reversal between males that already ranked higher than they did.
	Address	Department of Psychology, University of Pennsylvania, Philadelphia, PA 19104, USA. dkitchen@psych.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	1435-9448	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:15164259			Approved	no
	Call Number	refbase @ user @			Serial	687
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	Author	Kuroshima, H.; Fujita, K.; Adachi, I.; Iwata, K.; Fuyuki, A.
	Title	A Capuchin monkey (Cebus apella) recognizes when people do and do not know the location of food			Type	Journal Article
	Year	2003	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	6	Issue	4	Pages	283-291
	Keywords	Adaptation, Psychological; Animals; Cebus/psychology; Communication; Concept Formation; Cues; Discrimination Learning; Feeding Behavior/*psychology; Female; Intention; Male; Social Identification; Transfer (Psychology)
	Abstract	In a previous study, Kuroshima and colleagues demonstrated that capuchin monkeys (Cebus apella) learned to discriminate between a “knower” who inspected a box for food, and a “guesser” who did not. The aim of the present study was to specify whether the subjects learned a simple conditional discrimination or a causal relationship that seeing leads to knowing. In experiment 1, we introduced five types of novel containers to two subjects. Each container was of different shape and color. The subjects gradually learned to reach toward the container the knower suggested. In experiment 2, we diversified the behavior of the knower and the guesser. In experiment 3, in order to eliminate the possibility of discrimination based on differences in the magnitude and the complexity of two trainers, we equated their behaviors. One subject adapted to the novel behaviors of the knower and the guesser, successfully discriminating the two trainers. Thus this monkey clearly learned to use the inspecting action of the knower and the non-inspecting action of the guesser as a discriminative cue to recognize the baited container. This result suggests that one capuchin monkey learned to recognize the relationship between seeing and knowing.
	Address	Graduate School of Letters, Department of Psychology, Kyoto University, Yoshida-honmachi, Sakyo, 606-8501 Kyoto, Japan. kuroshi@psy.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	1435-9448	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:12905080			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2558
Permanent link to this record



	Author	Lacreuse, A.; Martin-Malivel, J.; Lange, H.S.; Herndon, J.G.
	Title	Effects of the menstrual cycle on looking preferences for faces in female rhesus monkeys			Type	Journal Article
	Year	2007	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	10	Issue	2	Pages	105-115
	Keywords	Animals; Behavior, Animal; Discrimination Learning; Estradiol/blood; Face; Female; Humans; Macaca mulatta/physiology; Male; Menstrual Cycle/blood/physiology; *Pattern Recognition, Visual
	Abstract	Fluctuations of ovarian hormones across the menstrual cycle influence a variety of social and cognitive behaviors in primates. For example, female rhesus monkeys exhibit heightened interest for males and increased agonistic interactions with other females during periods of high estrogen levels. In the present study, we hypothesized that females' preference for males during periods of high estrogen levels is also expressed at the level of face perception. We tested four intact females on two face-tasks involving neutral portraits of male and female rhesus monkeys, chimpanzees and humans. In the visual preference task (VP), monkeys had to touch a button to view a face image. The image remained on the screen as long as the button was touched, and the duration of pressing was taken as an index of the monkey's looking time for the face stimulus. In the Face-Delayed Recognition Span Test (Face-DRST), monkeys were rewarded for touching the new face in an increasing number of serially presented faces. Monkeys were tested 5 days a week across one menstrual cycle. Blood was collected every other day for analysis of estradiol and progesterone. Two of the four females were cycling at the time of testing. We did not find an influence of the cycle on Face-DRST, likely due to a floor effect. In the VP however, the two cycling individuals looked longer at conspecific male faces than female faces during the peri-ovulatory period of the cycle. Such effects were absent for human and chimpanzee faces and for the two noncycling subjects. These data suggest that ovarian hormones may influence females' preferences for specific faces, with heightened preference for male faces during the peri-ovulatory period of the cycle. Heightened interest for stimuli of significant reproductive relevance during periods of high conception risk may help guide social and sexual behavior in the rhesus monkey.
	Address	Department of Psychology, University of Massachusetts-Amherst, Tobin Hall, 135 Hicks Way, Amherst, MA 01003, USA. alacreuse@psych.umass.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:16909232			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2452
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