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The development of change detection
Author(s) -
Shore David I.,
Burack Jacob A.,
Miller Danny,
Joseph Shari,
Enns James T.
Publication year - 2006
Publication title -
developmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.801
H-Index - 127
eISSN - 1467-7687
pISSN - 1363-755X
DOI - 10.1111/j.1467-7687.2006.00516.x
Subject(s) - change detection , psychology , perception , cognitive psychology , orientation (vector space) , object (grammar) , visual perception , developmental psychology , blank , computer vision , artificial intelligence , computer science , geometry , mathematics , neuroscience , mechanical engineering , engineering
Changes to a scene often go unnoticed if the objects of the change are unattended, making change detection an index of where attention is focused during scene perception. We measured change detection in school‐age children and young adults by repeatedly alternating two versions of an image. To provide an age‐fair assessment we used a bimanual choice rather than open‐ended verbal responses. The difference in detection speed and accuracy between 50‐ms versus 250‐ms blank screens between views indexed change detection in short‐term visual memory independent of sensory and response processes. Younger children were significantly less efficient than older participants, especially when an object changed color or had a part deleted. Changes in object orientation were detected more readily. These results point to important differences in the perceptual reality of younger and older children.