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Author (up) Barth, J.; Reaux, J.E.; Povinelli, D.J.
Title Chimpanzees' (Pan troglodytes) use of gaze cues in object-choice tasks: different methods yield different results Type Journal Article
Year 2005 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 8 Issue 2 Pages 84-92
Keywords Animals; *Attention; *Choice Behavior; *Cues; *Eye Movements; Female; Male; *Nonverbal Communication; Orientation; Pan troglodytes/*psychology; Social Environment
Abstract To assess the influence of different procedures on chimpanzees' performance in object-choice tasks, five adult chimpanzees were tested using three experimenter-given cues to food location: gazing, glancing, and pointing. These cues were delivered to the subjects in an identical fashion but were deployed within the context of two distinct meta-procedures that have been previously employed with this species with conflicting results. In one procedure, the subjects entered the test unit and approached the experimenter (who had already established the cue) on each trial. In the other procedure, the subjects stayed in the test unit throughout a session, witnessed the hiding procedure, and waited for a delay of 10 s during which the cue was provided. The subjects scored at high levels far exceeding chance in response to the gaze cue only when they approached the experimenter for each trial. They performed at chance levels when they stayed inside the test unit throughout the session. They scored at chance levels on all other cues irrespective of the procedure. These findings imply that (a) chimpanzees can immediately exploit social gaze cues, and (b) previous conflicting findings were likely due to the different meta-procedures that were used.
Address Department of Neurocognition, Faculty of Psychology, Universiteit Maastricht, P.O. Box 616, 6200 MD, Maastricht, The Netherlands. j.barth@psychology.unimaas.nl
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:15449100 Approved no
Call Number Equine Behaviour @ team @ Serial 2510
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Author (up) Buttiker, W.
Title [Preliminary report on eye-frequenting butterflies in the Ivory Coast] Type Journal Article
Year 1973 Publication Revue Suisse de Zoologie; Annales de la Societe Zoologique Suisse et du Museum d'Histoire Naturelle de Geneve Abbreviated Journal Rev Suisse Zool
Volume 80 Issue 1 Pages 1-43
Keywords Animals; Behavior, Animal; Cattle; Cote d'Ivoire; Ecology; Ectoparasitic Infestations/*veterinary; *Eye; Horses; *Insects; *Parasites; Sheep
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language German Summary Language Original Title Vorlaufige Beobachtungen an augenbesuchenden Schmetterlingen in der Elfenbeinkuste
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0035-418X ISBN Medium
Area Expedition Conference
Notes PMID:4354354 Approved no
Call Number Equine Behaviour @ team @ Serial 2716
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Author (up) Emery, N.J.
Title The eyes have it: the neuroethology, function and evolution of social gaze Type Journal Article
Year 2000 Publication Neuroscience and Biobehavioral Reviews Abbreviated Journal Neurosci Biobehav Rev
Volume 24 Issue 6 Pages 581-604
Keywords Animals; *Eye; Fixation, Ocular; Humans; *Social Behavior
Abstract Gaze is an important component of social interaction. The function, evolution and neurobiology of gaze processing are therefore of interest to a number of researchers. This review discusses the evolutionary role of social gaze in vertebrates (focusing on primates), and a hypothesis that this role has changed substantially for primates compared to other animals. This change may have been driven by morphological changes to the face and eyes of primates, limitations in the facial anatomy of other vertebrates, changes in the ecology of the environment in which primates live, and a necessity to communicate information about the environment, emotional and mental states. The eyes represent different levels of signal value depending on the status, disposition and emotional state of the sender and receiver of such signals. There are regions in the monkey and human brain which contain neurons that respond selectively to faces, bodies and eye gaze. The ability to follow another individual's gaze direction is affected in individuals with autism and other psychopathological disorders, and after particular localized brain lesions. The hypothesis that gaze following is “hard-wired” in the brain, and may be localized within a circuit linking the superior temporal sulcus, amygdala and orbitofrontal cortex is discussed.
Address Center for Neuroscience, Department of Psychiatry & California Regional Primate Research Center, University of California, Davis, CA 95616, USA. njemery@ucdavis.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 0149-7634 ISBN Medium
Area Expedition Conference
Notes PMID:10940436 Approved no
Call Number refbase @ user @ Serial 3996
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