Document Type
Research Paper
Abstract
The purpose of this experiment was to assess the perceived depth of half-occlusions. Half-occlusions are the monocular fragments of an occluded figure that appear visually adjacent to the occluding figure. Observers were presented both ecologically valid and ecologically invalid half-occlusions. The contribution of three additional variables on the perceived depth of half-occlusions was also examined: 1.) the width of the half-occlusion, 2.) the luminance relationship between the half-occlusion and the occluder, and 3.) whether there were one or two half-occlusions adjacent to an occluder.
Twenty-one undergraduate students were presented computer-generated stereograms in a 2 (ecologically valid or invalid half-occlusions) X 2 (wide or narrow half-occlusions) X 2 (luminance relationship between the half-occlusion and occluder) within-subjects factorial experimental design. Each of the resulting 16 stereograms was presented 5 times in a random order for depth judgments of the half-occlusions and of the area beyond the half-occlusion.
Results showed that each factor as a main effect or as an interaction affected perceived depth. The results were discussed in terms of published theories.
Publication Date
1998
Journal Title
Conference Proceedings: Undergraduate Social Science Research Conference
Volume
2
Issue
1
First Page
113
Last Page
121
Copyright
©1998 by the University of Northern Iowa
Language
en
File Format
application/pdf
Publisher
University of Northern Iowa
City
Cedar Falls, IA
Recommended Citation
Dybvig, Andy and Dengler, Matt
(1998)
"Percieved Depth of Half-Occlusions,"
Conference Proceedings: Undergraduate Social Science Research Conference: Vol. 2:
Iss.
1, Article 17.
Available at:
https://scholarworks.uni.edu/csbsproceedings/vol2/iss1/17
