JAPANESE TOP Message from the Director Information Faculty list Research Projects Entrance Exam Visitors Publication Job Vacancy INTERNSHIP PROGRAM Links Access HANDBOOK FOR INTERNATIONAL RESEARCHERS Map of Inuyama
BONOBO Chimpanzee "Ai" Crania photos Itani Jun'ichiro archives Guidelines for Care and Use of Nonhuman Primates(pdf) Study material catalogue/database Guideline for field research of non-human primates2018(pdf) Primate Genome DB

Primate Research Institute, Kyoto University
Inuyama, Aichi 484-8506, JAPAN
TEL. +81-568-63-0567
(Administrative Office)
FAX. +81-568-63-0085

Copyright (c)
Primate Research Institute,
Kyoto University All rights reserved.



Humans and chimpanzees attend differently to goal-directed actions

Masako Myowa-Yamakoshi, Céline Scola & Satoshi Hirata

 Humans comprehend the actions of others by making inferences about intentional mental states of another. However, little is known about how this capacity develops and whether this is shared with other animals. Here we show the ontogenetic and evolutionary foundations of this ability by comparing the eye movements of 8- and 12-month-old human infants, adults and chimpanzees as they watched videos presenting goal-directed and non-goal-directed actions by an actor. We find that chimpanzees anticipate action goals in the same way as do human adults. Humans and chimpanzees, however, scan goal-directed actions differently. Humans, particularly infants, refer to actors' faces significantly more than do chimpanzees. In human adults, attentional allocation to an actor's face changes as the goal-directed actions proceed. In the case of non-goal-directed actions, human adults attend less often to faces relative to goal-directed actions. These findings indicate that humans have a predisposition to observe goal-directed actions by integrating information from the actor.



Copyright(C) 2012 PRI (). All rights reserved.