Document Detail


Differences in the Effects of Crowding on Size Perception and Grip Scaling in Densely Cluttered 3-D Scenes.
MedLine Citation:
PMID:  25479759     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Objects rarely appear in isolation in natural scenes. Although many studies have investigated how nearby objects influence perception in cluttered scenes (i.e., crowding), none has studied how nearby objects influence visually guided action. In Experiment 1, we found that participants could scale their grasp to the size of a crowded target even when they could not perceive its size, demonstrating for the first time that neurologically intact participants can use visual information that is not available to conscious report to scale their grasp to real objects in real scenes. In Experiments 2 and 3, we found that changing the eccentricity of the display and the orientation of the flankers had no effect on grasping but strongly affected perception. The differential effects of eccentricity and flanker orientation on perception and grasping show that the known differences in retinotopy between the ventral and dorsal streams are reflected in the way in which people deal with targets in cluttered scenes.
Authors:
Juan Chen; Irene Sperandio; Melvyn Alan Goodale
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-12-5
Journal Detail:
Title:  Psychological science     Volume:  -     ISSN:  1467-9280     ISO Abbreviation:  Psychol Sci     Publication Date:  2014 Dec 
Date Detail:
Created Date:  2014-12-6     Completed Date:  -     Revised Date:  2014-12-7    
Medline Journal Info:
Nlm Unique ID:  9007542     Medline TA:  Psychol Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© The Author(s) 2014.
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