Document Detail

Perceiving spatially inseparable objects: evidence for feature-based object selection not mediated by location.
MedLine Citation:
PMID:  10641311     Owner:  NLM     Status:  MEDLINE    
In 4 experiments, stimulus elements were arranged into an LED-like array, and letters were defined within the array by feature similarity between the elements with respect to color and form. These stimuli allowed the display of a target and a distractor letter simultaneously at the same location. They were spatially inseparable but could be separated in feature space. Participants had to identify the letter on a prespecified feature dimension (color or form). As a result, the distractors produced specific compatibility effects. This showed that nontarget features could not be ignored at an early stage (i.e., that color and form were processed automatically and in parallel up to a high stage). The target was selected from the resulting objects according to the prespecified feature dimension. Results demonstrate that object selection is possible without selecting absolute spatial arrays.
R Hübner; G Backer
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of experimental psychology. Human perception and performance     Volume:  25     ISSN:  0096-1523     ISO Abbreviation:  J Exp Psychol Hum Percept Perform     Publication Date:  1999 Dec 
Date Detail:
Created Date:  2000-02-17     Completed Date:  2000-02-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7502589     Medline TA:  J Exp Psychol Hum Percept Perform     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1556-67     Citation Subset:  IM    
Department of Psychology, Technische Universität Braunschweig, Germany.
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MeSH Terms
Color Perception
Contrast Sensitivity
Discrimination Learning*
Pattern Recognition, Visual*
Reaction Time

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