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A Method for Investigating Change Blindness in Pigeons (Columba Livia)
Published on: September 7, 2018
Does facial processing prioritize change detection?: change blindness illustrates costs and benefits of holistic
1Department of Psychology, W112 Lagomarcino Hall, Iowa State University, Ames, IA 50011-3180, USA. mwilford@iastate.edu
Abstract:
There is broad consensus among researchers both that faces are processed more holistically than other objects and that this type of processing is beneficial. We predicted that holistic processing of faces also involves a cost, namely, a diminished ability to localize change. This study (N = 150) utilized a modified change-blindness paradigm in which some trials involved a change in one feature of an image (nose, chin, mouth, hair, or eyes for faces; chimney, porch, window, roof, or door for houses), whereas other trials involved no change. People were better able to detect the occurrence of a change for faces than for houses, but were better able to localize which feature had changed for houses than for faces. Half the trials used inverted images, a manipulation that disrupts holistic processing. With inverted images, the critical interaction between image type (faces vs. houses) and task (change detection vs. change localization) disappeared. The results suggest that holistic processing reduces change-localization abilities.
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