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publications:searchjexp01 [2010/06/09 15:48]
127.0.0.1 external edit
publications:searchjexp01 [2017/05/05 15:03] (current)
rosenholtz
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 +====== Visual search for orientation among heterogeneous distractors: Experimental results and implications for signal detection theory models of search ======
 +==== Ruth Rosenholtz ====
 +----
 +
 +===== Abstract =====
 +Three experiments tested a signal-detection theory (SDT) model of visual search (e.g. as described in J. Palmer, C. T. Ames, & D. T. Lindsey, 1993).  In Experiment 1, participants searched for a 0° line among distractors at (a) 30°; (b) 1/3 at 30°, 2/3 at 50°; ( c) 1/3 at 30°, 50°, and 70°; (d) 1/3 at 30°, 2/3 at 70°.  The SDT model predicts improved performance in the more heterogeneous conditions, as some distractors are more discriminable from the target.  In contrast, in Experiment 1, human performance degraded in the more heterogeneous conditions ( c) and (d).  In Experiment 2, sparser displays improved the performance of the SDT model.  In Experiment 3, search for θ° among homogeneous θ + 20° distractors was compared with search for θ° among θ ± 20° distractors.  Performance in the latter condition was often worse, relative to performance in the homogeneous condition, than predicted by the SDT model; however, this depended greatly on the identity of the target.
 +
 +===== Information =====
---- dataentry pubitem ---- ---- dataentry pubitem ----
-title        : Visual search for orientation among heterogeneous distractors: Experimental  results and implications for signal detection theory models of search+title        : Visual search for orientation among heterogeneous distractors: Experimental results and implications for signal detection theory models of search
authors      : R. Rosenholtz authors      : R. Rosenholtz
citation     : Journal of Experimental Psychology, 27(4), 985-999 citation     : Journal of Experimental Psychology, 27(4), 985-999
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year         : 2001 year         : 2001
created_dt   : 2001-01-01 created_dt   : 2001-01-01
-keyword_tags : rosenholtz+summary_page : publications:searchjexp01 
 +keyword_tags : rosenholtz, search
www_url      : www_url      :
pdf_url      :  http://web.mit.edu/rruth/www/Papers/orientation%20search.pdf pdf_url      :  http://web.mit.edu/rruth/www/Papers/orientation%20search.pdf
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type         : publication type         : publication
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publications/searchjexp01.1276112936.txt.gz · Last modified: 2012/04/20 11:20 (external edit)