Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
J Comp Psychol. 2005 Nov;119(4):394-403.

How prosimian primates represent tools: experiments with two lemur species (Eulemur fulvus and Lemur catta).

Author information

  • 1Department of Psychology, Yale University, New Haven, CT 06520, USA. laurie.santos@yale.edu

Abstract

The authors examined how 2 lemur species (Eulemur fulvus and Lemur catta) reason about tools. Experiment 1 allowed subjects to use 1 of 2 canes to retrieve an inaccessible food reward. Lemurs learned to solve this problem as quickly as other primates. Experiment 2 then presented subjects with novel tools differing from the originals along one featural dimension. Subjects attended more to tools' sizes than to their colors and made no distinction between tools' shapes and textures. Experiments 3 and 4 presented problems in which some of the tools' orientations had to be modified relative to the food. Subjects performed well on these problems, sometimes modifying the position of the tool. These results are discussed in light of the performance of other primates on this task.

((c) 2005 APA, all rights reserved).

PMID:
16366773
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Psychological Association
    Loading ...
    Write to the Help Desk