Document Detail

Cross-dimensional perceptual selectivity.
MedLine Citation:
PMID:  1945740     Owner:  NLM     Status:  MEDLINE    
Three visual search experiments tested whether top-down selectivity toward particular stimulus dimensions is possible during preattentive parallel search. Subjects viewed multielement displays in which two salient items, each unique in a different dimension--that is, color and intensity (Experiment 1) or color and form (Experiments 2 and 3)--were simultaneously present. One of the dimensions defined the target; the other dimension served as distractor. The results indicate that when search is performed in parallel, top-down selectivity is not possible. These findings suggest that preattentive parallel search is strongly automatic, because it satisfies both the load-insensitivity and the unintentionality criteria of automaticity.
J Theeuwes
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Perception & psychophysics     Volume:  50     ISSN:  0031-5117     ISO Abbreviation:  Percept Psychophys     Publication Date:  1991 Aug 
Date Detail:
Created Date:  1991-12-06     Completed Date:  1991-12-06     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0200445     Medline TA:  Percept Psychophys     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  184-93     Citation Subset:  C    
TNO Institute for Perception, Soesterberg, The Netherlands.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Color Perception*
Pattern Recognition, Visual*
Reaction Time

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Sex differences in pain and thermal sensitivity: the role of body size.
Next Document:  Human adults and human infants show a "perceptual magnet effect" for the prototypes of speech catego...