Format

Send to

Choose Destination
See comment in PubMed Commons below
Biol Lett. 2010 Oct 23;6(5):610-3. doi: 10.1098/rsbl.2010.0120. Epub 2010 Mar 24.

Differential sensitivity to conspecific and allospecific cues in chimpanzees and humans: a comparative eye-tracking study.

Author information

1
Primate Research Institute, Kyoto University, Kanrin, Inuyama, Aichi 484-8506, Japan. yhattori@pri.kyoto-u.ac.jp

Abstract

Previous studies have shown that a variety of animals including humans are sensitive to social cues from others and shift their attention to the same objects attended to by others. However, little is known about how animals process conspecifics' and another species' actions, although primates recognize conspecific faces better than those of another species. In this study, using unrestrained eye-tracking techniques, we first demonstrated that conspecific social cues modulated looking behaviours of chimpanzees more than human cues, whereas human observers were equally sensitive to both species. Additionally, first pass gaze duration at the face indicates that chimpanzees looked at the chimpanzees' face longer than the human face, suggesting that chimpanzees might extract more referential information from a conspecific face. These results also imply that a unique ability for extracting referential information from a variety of social objects has emerged during human evolution.

PMID:
20335197
PMCID:
PMC2936142
DOI:
10.1098/rsbl.2010.0120
[Indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire Icon for PubMed Central
    Loading ...
    Support Center