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| Research article summary (published 29 Apr 2003): |
An automated apparatus for presenting depth-rotated three-dimensional objects in human and animal object recognition research.
Full Abstract
For practical reasons, research on the recognition of objects from different viewpoints has relied almost exclusively on the use of two-dimensional representations of three-dimensional objects. We describe an apparatus that enables the presentation of three-dimensional objects in a discrimination learning paradigm. Three chambers positioned on a movable table allow each of two objects to be presented on either the left or the right side; a viewing window exposes only two of the objects at a time. The objects can be arbitrarily designated as either an S+ or an S-. In addition, they can be placed precisely in any arbitrary start position and rotated in depth in 100 steps of 3.6 degrees each. We have successfully used this apparatus to investigate recognition of depth-rotated objects by both pigeons and humans. By varying the stimuli, number of stimulus chambers, and software programs, the apparatus can be used for other types of tasks and to investigate other types of processes.
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Author information
Author/s: Friedman, Alinda (A); Spetch, Marcia L (ML); Lank, Isaac (I);
Affiliation: Department of Psychology, University of Alberta, Edmonton, Alberta, Canada. alinda@ualberta.ca
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: Behavior research methods, instruments, & computers : a journal of the Psychonomic Society, Inc (Behav Res Methods Instrum Comput), published in United States. (Language: eng)
Reference: 2003-May; vol 35 (issue 2) : pp 343-9
Dates: Created 2003/07/01; Completed 2003/08/29; Revised 2006/11/15;
PMID: 12834095, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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