| Records |
| Author |
Itakura, S.; Agnetta, B.; Hare, B.; Tomasello, M. |
| Title |
Chimpanzee Use of Human and Conspecific Social Cues to Locate Hidden Food |
Type |
Journal Article |
| Year |
2001 |
Publication |
Developmental Science |
Abbreviated Journal |
Dev Sci |
| Volume |
2 |
Issue |
2 |
Pages |
448 - 456 |
| Keywords |
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| Abstract |
Two studies are reported in which chimpanzees attempted to use social cues to locate hidden food in one of two possible hiding places. In the first study four chimpanzees were exposed to a local enhancement cue (the informant approached and looked to the location where food was hidden and then remained beside it) and a gaze/point cue (the informant gazed and manually pointed towards the location where the food was hidden). Each cue was given by both a human informant and a chimpanzee informant. In the second study 12 chimpanzees were exposed to a gaze direction cue in combination with a vocal cue (the human informant gazed to the hiding location and produced one of two different vocalizations – a 'food-bark' or a human word-form). The results were – (i) all subjects were quite skillful with the local enhancement cue, no matter who produced it; (ii) few subjects were skillful with the gaze/point cue, no matter who produced it (most of these being individuals who had been raised in infancy by humans); and (iii) most subjects were skillful when the human gazed and vocalized at the hiding place, with little difference between the two types of vocal cue. Findings are discussed in terms of chimpanzees' apparent need for additional cues, over and above gaze direction cues, to indicate the presence of food. |
| Address |
Department of Psychology and Yerkes Regional Primate Research Center, Emory University, USA DOI – 10.1111/1467-7687.00089 |
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Place of Publication |
Blackwell Publishers Ltd. 1999 |
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| Call Number |
Equine Behaviour @ team @ |
Serial |
4973 |
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| Author |
Itakura, S. |
| Title |
Gaze Following and Joint Visual Attention in Nonhuman Animals |
Type |
Journal Article |
| Year |
2004 |
Publication |
Japanese Psychological Research |
Abbreviated Journal |
Jpn. Psychol. Res. |
| Volume |
3 |
Issue |
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Pages |
216-226 |
| Keywords |
gaze-following; joint visual attention; theory of mind; nonhuman animal |
| Abstract |
n this paper, studies of gaze-following and joint visual attention in nonhuman animals are reviewed from the theoretical perspective of Emery (2000). There are many studies of gaze-following and joint visual attention in nonhuman primates. The reports concern not only adult individuals but also the development of these abilities. Studies to date suggest that monkeys and apes are able to follow the gaze of others, but only apes can understand the seeing-knowing relationship with regards to conspecifics in competitive situations. Also, there have recently been some reports of ability to follow the gaze of humans in domestic animals, such as dogs or horses, interacting with humans. These domestic animals are considered to have acquired this ability during their long history of selective breeding by humans. However, we need to clarify social gaze parameters in various species to improve our knowledge of the evolution of how we process others gazing, attention, and mental states. |
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| Language |
English |
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refbase @ user @ |
Serial |
545 |
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