Search asymmetries? What search asymmetries?

R. Rosenholtz


Abstract

In order to establish a search asymmetry, one must run an experiment with a symmetric design and get asymmetric results. Given an asymmetric design, one expects asymmetric results and such results do not imply an asymmetry in the search mechanisms. In this paper I argue that a number of experiments purporting to show search asymmetries contain built-in design asymmetries. A saliency model of visual search predicts the results of these experiments using only a simple measure of target-distractor similarity, without reliance on asymmetric search mechanisms. These results have implications for search mechanisms and for other experiments purporting to show search asymmetries.

Information

title:
Search asymmetries? What search asymmetries?
author:
R. Rosenholtz
citation:
Perception & Psychophysics, 63(3), 476-489
shortcite:
Perception & Psychophysics
year:
2001
created:
2001-01-01
keyword:
rosenholtz,
search,
visstat
pdf:
http://web.mit.edu/rruth/www/Papers/Asymmetries.pdf
pageid:
searchpsych01
type:
publication