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Author Palmer, M.E.; Calve, M.R.; Adamo, S.A.
Title Response of female cuttlefish Sepia officinalis (Cephalopoda) to mirrors and conspecifics: evidence for signaling in female cuttlefish Type Journal Article
Year 2006 Publication Animal cognition Abbreviated Journal Anim. Cogn.
Volume 9 Issue 2 Pages 151-155
Keywords Analysis of Variance; *Animal Communication; Animals; Bias (Epidemiology); Female; Male; Pigmentation/*physiology; Recognition (Psychology)/*physiology; Sepia/*physiology; Visual Perception/*physiology
Abstract Cuttlefish have a large repertoire of body patterns that are used for camouflage and interspecific signaling. Intraspecific signaling by male cuttlefish has been well documented but studies on signaling by females are lacking. We found that females displayed a newly described body pattern termed Splotch toward their mirror image and female conspecifics, but not to males, prey or inanimate objects. Female cuttlefish may use the Splotch body pattern as an intraspecific signal, possibly to reduce agonistic interactions. The ability of females to produce a consistent body pattern in response to conspecifics and mirrors suggests that they can recognize same-sex conspecifics using visual cues, despite the lack of sexual dimorphism visible to human observers.
Address (up) Dorset Environmental Science Centre, Dorset, ON, Canada, P0A 1E0
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ISSN 1435-9448 ISBN Medium
Area Expedition Conference
Notes PMID:16408230 Approved no
Call Number Admin @ knut @ Serial 16
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Author Nielsen, M.; Collier-Baker, E.; Davis, J.M.; Suddendorf, T.
Title Imitation recognition in a captive chimpanzee (Pan troglodytes) Type Journal Article
Year 2005 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 8 Issue 1 Pages 31-36
Keywords Animals; *Awareness; Humans; *Imitative Behavior; Male; Motor Activity; *Movement; Pan troglodytes/*psychology; *Recognition (Psychology)
Abstract This study investigated the ability of a captive chimpanzee (Pan troglodytes) to recognise when he is being imitated. In the experimental condition of test 1a, an experimenter imitated the postures and behaviours of the chimpanzee as they were being displayed. In three control conditions the same experimenter exhibited (1) actions that were contingent on, but different from, the actions of the chimpanzee, (2) actions that were not contingent on, and different from, the actions of the chimpanzee, or (3) no action at all. The chimpanzee showed more “testing” sequences (i.e., systematically varying his actions while oriented to the imitating experimenter) and more repetitive behaviour when he was being imitated, than when he was not. This finding was replicated 4 months later in test 1b. When the experimenter repeated the same actions she displayed in the experimental condition of test 1a back to the chimpanzee in test 2, these actions now did not elicit those same testing sequences or repetitive behaviours. However, a live imitation condition did. Together these results provide the first evidence of imitation recognition in a nonhuman animal.
Address (up) Early Cognitive Development Unit, School of Psychology, University of Queensland, QLD, Brisbane, 4072, Australia. nielsen@psy.uq.edu.au
Corporate Author Thesis
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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:15322942 Approved no
Call Number Equine Behaviour @ team @ Serial 2515
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Author Schwartz, B.L.; Meissner, C.A.; Hoffman, M.; Evans, S.; Frazier, L.D.
Title Event memory and misinformation effects in a gorilla (Gorilla gorilla gorilla) Type Journal Article
Year 2004 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 7 Issue 2 Pages 93-100
Keywords Animals; *Deception; *Discrimination Learning; Gorilla gorilla/*psychology; Male; *Pattern Recognition, Visual; Photography; *Recognition (Psychology)
Abstract Event memory and misinformation effects were examined in an adult male gorilla ( Gorilla gorilla gorilla). The gorilla witnessed a series of unique events, involving a familiar person engaging in a novel behavior (experiment 1), a novel person engaging in a novel behavior (experiment 2), or the presentation of a novel object (experiment 3). Following a 5- to 10-min retention interval, a tester gave the gorilla three photographs mounted on wooden cards: a photograph depicting the correct person or object and two distractor photographs drawn from the same class. The gorilla responded by returning a photograph. If correct, he was reinforced with food. Across three experiments, the gorilla performed significantly above chance at recognizing the target photograph. In experiment 4, the gorilla showed at-chance performance when the event was followed by misinformation (a class-consistent, but incorrect photograph), but significantly above-chance performance when no misinformation occurred (either correct photograph or no photograph). Although the familiarity can account for these data, they are also consistent with an episodic-memory interpretation.
Address (up) Florida International University, University Park, FL 33199, Miami, USA. schwartb@fiu.edu
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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:15069608 Approved no
Call Number Equine Behaviour @ team @ Serial 2532
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Author Dreier, S.; van Zweden, J.S.; D'Ettorre, P.
Title Long-term memory of individual identity in ant queens Type Journal Article
Year 2007 Publication Biology Letters Abbreviated Journal Biol Lett
Volume 3 Issue 5 Pages 459-462
Keywords Aggression; Animals; Ants/*physiology; Conditioning, Operant; Evolution; Female; *Memory; *Recognition (Psychology); Social Dominance
Abstract Remembering individual identities is part of our own everyday social life. Surprisingly, this ability has recently been shown in two social insects. While paper wasps recognize each other individually through their facial markings, the ant, Pachycondyla villosa, uses chemical cues. In both species, individual recognition is adaptive since it facilitates the maintenance of stable dominance hierarchies among individuals, and thus reduces the cost of conflict within these small societies. Here, we investigated individual recognition in Pachycondyla ants by quantifying the level of aggression between pairs of familiar or unfamiliar queens over time. We show that unrelated founding queens of P. villosa and Pachycondyla inversa store information on the individual identity of other queens and can retrieve it from memory after 24h of separation. Thus, we have documented for the first time that long-term memory of individual identity is present and functional in ants. This novel finding represents an advance in our understanding of the mechanism determining the evolution of cooperation among unrelated individuals.
Address (up) Institute of Biology, Department of Population Biology, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark. sdreier@bi.ku.dk
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Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1744-9561 ISBN Medium
Area Expedition Conference
Notes PMID:17594958 Approved no
Call Number Equine Behaviour @ team @ Serial 4649
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Author de Waal, F.B.M.; Dindo, M.; Freeman, C.A.; Hall, M.J.
Title The monkey in the mirror: hardly a stranger Type Journal Article
Year 2005 Publication Proceedings of the National Academy of Sciences of the United States of America Abbreviated Journal Proc. Natl. Acad. Sci. U.S.A.
Volume 102 Issue 32 Pages 11140-11147
Keywords Analysis of Variance; Animals; Cebus/*physiology; *Discrimination (Psychology); Empathy; Female; Male; Observation; *Recognition (Psychology); *Self Concept; Sex Factors
Abstract It is widely assumed that monkeys see a stranger in the mirror, whereas apes and humans recognize themselves. In this study, we question the former assumption by using a detailed comparison of how monkeys respond to mirrors versus live individuals. Eight adult female and six adult male brown capuchin monkeys (Cebus apella) were exposed twice to three conditions: (i) a familiar same-sex partner, (ii) an unfamiliar same-sex partner, and (iii) a mirror. Females showed more eye contact and friendly behavior and fewer signs of anxiety in front of a mirror than they did when exposed to an unfamiliar partner. Males showed greater ambiguity, but they too reacted differently to mirrors and strangers. Discrimination between conditions was immediate, and blind coders were able to tell the difference between monkeys under the three conditions. Capuchins thus seem to recognize their reflection in the mirror as special, and they may not confuse it with an actual conspecific. Possibly, they reach a level of self-other distinction intermediate between seeing their mirror image as other and recognizing it as self.
Address (up) Living Links Center, Emory University, Atlanta, GA 30322, USA. dewaal@emory.edu
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ISSN 0027-8424 ISBN Medium
Area Expedition Conference
Notes PMID:16055557 Approved no
Call Number refbase @ user @ Serial 164
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Author Tebbich, S.; Bshary, R.; Grutter, A.S.
Title Cleaner fish Labroides dimidiatus recognise familiar clients Type Journal Article
Year 2002 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 5 Issue 3 Pages 139-145
Keywords Adaptation, Physiological; Animals; *Evolution; *Fishes; Motivation; *Recognition (Psychology); Social Behavior; Visual Perception
Abstract Individual recognition has been attributed a crucial role in the evolution of complex social systems such as helping behaviour and cooperation. A classical example for interspecific cooperation is the mutualism between the cleaner fish Labroides dimidiatus and its client reef fish species. For stable cooperation to evolve, it is generally assumed that partners interact repeatedly and remember each other's past behaviour. Repeated interactions may be achieved by site fidelity or individual recognition. However, as some cleaner fish have more than 2,300 interactions per day with various individuals per species and various species of clients, basic assumptions of cooperation theory might be violated in this mutualism. We tested the cleaner L. dimidiatus and its herbivorous client, the surgeon fish Ctenochaetus striatus, for their ability to distinguish between a familiar and an unfamiliar partner in a choice experiment. Under natural conditions, cleaners and clients have to build up their relationship, which is probably costly for both. We therefore predicted that both clients and cleaners should prefer the familiar partner in our choice experiment. We found that cleaners spent significantly more time near the familiar than the unfamiliar clients in the first 2 minutes of the experiment. This indicates the ability for individual recognition in cleaners. In contrast, the client C. striatus showed no significant preference. This could be due to a sampling artefact, possibly due to a lack of sufficient motivation. Alternatively, clients may not need to recognise their cleaners but instead remember the defined territories of L. dimidiatus to achieve repeated interactions with the same individual.
Address (up) Max Planck Institute for Behaviour and Physiology, 82319 Seewiesen, Germany. tebbich@ss20.mpi-seewiesen.mpg.de
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Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1435-9448 ISBN Medium
Area Expedition Conference
Notes PMID:12357286 Approved no
Call Number Equine Behaviour @ team @ Serial 2599
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Author Riedel, J.; Buttelmann, D.; Call, J.; Tomasello, M.
Title Domestic dogs (Canis familiaris) use a physical marker to locate hidden food Type Journal Article
Year 2006 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 9 Issue 1 Pages 27-35
Keywords Animals; Cues; Dogs/*psychology; Female; Gestures; Humans; Male; *Nonverbal Communication; *Recognition (Psychology); Signal Detection (Psychology); Visual Perception
Abstract Dogs can use the placement of an arbitrary marker to locate hidden food in an object-choice situation. We tested domestic dogs (Canis familiaris) in three studies aimed at pinning down the relative contributions of the human's hand and the marker itself. We baited one of two cups (outside of the dogs' view) and gave the dog a communicative cue to find the food. Study 1 systematically varied dogs' perceptual access to the marker placing event, so that dogs saw either the whole human, the hand only, the marker only, or nothing. Follow-up trials investigated the effect of removing the marker before the dog's choice. Dogs used the marker as a communicative cue even when it had been removed prior to the dog's choice and attached more importance to this cue than to the hand that placed it although the presence of the hand boosted performance when it appeared together with the marker. Study 2 directly contrasted the importance of the hand and the marker and revealed that the effect of the marker diminished if it had been associated with both cups. In contrast touching both cups with the hand had no effect on performance. Study 3 investigated whether the means of marker placement (intentional or accidental) had an effect on dogs' choices. Results showed that dogs did not differentiate intentional and accidental placing of the marker. These results suggest that dogs use the marker as a genuine communicative cue quite independently from the experimenter's actions.
Address (up) Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6 D-04103, Leipzig, Germany. riedel@eva.mpg.de
Corporate Author Thesis
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ISSN 1435-9448 ISBN Medium
Area Expedition Conference
Notes PMID:15846526 Approved no
Call Number Equine Behaviour @ team @ Serial 2488
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Author Rizzolatti, G.; Fogassi, L.; Gallese, V.
Title Mirrors of the mind Type Journal Article
Year 2006 Publication Scientific American Abbreviated Journal Sci Am
Volume 295 Issue 5 Pages 54-61
Keywords Animals; Brain/*physiology; Cognition/*physiology; Discrimination (Psychology)/physiology; Emotions/physiology; Humans; Imitative Behavior; Learning/*physiology; Mental Processes/*physiology; Motor Activity/physiology; Neurons/physiology; Recognition (Psychology); Sensation/physiology
Abstract
Address (up) Neurosciences Department, University of Parma, Italy
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 0036-8733 ISBN Medium
Area Expedition Conference
Notes PMID:17076084 Approved no
Call Number Equine Behaviour @ team @ Serial 2829
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Author Palleroni, A.; Hauser, M.; Marler, P.
Title Do responses of galliform birds vary adaptively with predator size? Type Journal Article
Year 2005 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 8 Issue 3 Pages 200-210
Keywords Adaptation, Psychological; Animals; *Avoidance Learning; *Behavior, Animal; Body Size; Chickens; Female; Food Chain; Male; *Pattern Recognition, Visual; *Predatory Behavior; *Recognition (Psychology); Risk Assessment
Abstract Past studies of galliform anti-predator behavior show that they discriminate between aerial and ground predators, producing distinctive, functionally referential vocalizations to each class. Within the category of aerial predators, however, studies using overhead models, video images and observations of natural encounters with birds of prey report little evidence that galliforms discriminate between different raptor species. This pattern suggests that the aerial alarm response may be triggered by general features of objects moving in the air. To test whether these birds are also sensitive to more detailed differences between raptor species, adult chickens with young were presented with variously sized trained raptors (small, intermediate, large) under controlled conditions. In response to the small hawk, there was a decline in anti-predator aggression and in aerial alarm calling as the young grew older and less vulnerable to attack by a hawk of this size. During the same developmental period, responses to the largest hawk, which posed the smallest threat to the young at all stages, did not change; there were intermediate changes at this time in response to the middle-sized hawk. Thus the anti-predator behavior of the adult birds varied in an adaptive fashion, changing as a function of both chick age and risk. We discuss these results in light of current issues concerning the cognitive mechanisms underlying alarm calling behavior in animals.
Address (up) Primate Cognitive Neuroscience Laboratory, Department of Psychology, Harvard University, 33 Kirkland St., Cambridge, MA, 02138, USA. aliparti@wjh.harvard.edu
Corporate Author Thesis
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ISSN 1435-9448 ISBN Medium
Area Expedition Conference
Notes PMID:15660209 Approved no
Call Number Equine Behaviour @ team @ Serial 2496
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Author Koba, R.; Izumi, A.
Title Sex categorization of conspecific pictures in Japanese monkeys (Macaca fuscata) Type Journal Article
Year 2006 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 9 Issue 3 Pages 183-191
Keywords Animals; Conditioning, Operant; *Discrimination (Psychology); Female; *Generalization (Psychology); Macaca/*psychology; Male; *Pattern Recognition, Visual; Photography; Recognition (Psychology); *Sex Characteristics
Abstract We investigated whether monkeys discriminate the sex of individuals from their pictures. Whole-body pictures of adult and nonadult monkeys were used as stimuli. Two male Japanese monkeys were trained for a two-choice sex categorization task in which each of two choice pictures were assigned to male and female, respectively. Following the training, the monkeys were presented with novel monkey pictures, and whether they had acquired the categorization task was tested. The results suggested that while monkeys discriminate between the pictures of adult males and females, discrimination of nonadult pictures was difficult. Partial presentations of the pictures showed that conspicuous and sexually characteristic parts (i.e., underbellies including male scrotums or breasts including female nipples) played an important role in the sex categorization.
Address (up) Primate Research Institute, Kyoto University, Kanrin 41, Inuyama, 484-8506, Japan
Corporate Author Thesis
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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:16612631 Approved no
Call Number Equine Behaviour @ team @ Serial 2470
Permanent link to this record