Change blindness to gradual changes in facial expressions

Document Type: 
Article
Article Type: 
Experimental
Disciplines: 
Psychology
Topics: 
Cognition
Keywords: 
change blindness, change detection, facial expression
Deposited by: 
Dr Axel Cleeremans
Date of Issue: 
2007
Authors: 
Elodie David1, Cédric Laloyaux1, Christel Devue2, Axel Cleeremans
Journal/Publication Title: 
Psychologica Belgica
Volume: 
in press
Official URL: 
http://www.ingentaconnect.com/content/acad/psyb
Alternative URL: 
http://srsc.ulb.ac.be/axcWWW/papers/pdf/06-PB.pdf
Abstract: 
Change blindness—our inability to detect changes in a stimulus—occurs even when the change takes place gradually, without disruption (Simons et al., 2000). Such gradual changes are more difficult to detect than changes that involve a disruption. In this experiment, we extend previous findings to the domain of facial expressions of emotions occurring in the context of a realistic scene. Even with changes occurring in central, highly relevant stimuli such as faces, gradual changes still produced high levels of change blindness: Detection rates were three times lower for gradual changes than for displays involving disruption, with only 15% of the observers perceiving the gradual change within a single trial. However, despite this high rate of change blindness, changes on faces were significantly better detected than color changes occurring on non facial objects in the same scene.
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PreprintDavidPB06.pdf4.07 MB