Action blindness in response to gradual changes |
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| Authors: | Bruno Berberian Stephanie Chambaron-Ginhac Axel Cleeremans |
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| Affiliation: | 1. Institute of Psychology I, University of Leipzig, Leipzig, Germany;2. Department of Experimental – Clinical and Health Psychology, Ghent University, Ghent, Belgium;1. Psychology Department, Northern Illinois University, DeKalb, IL 60115-2892, USA;2. Department of Psychological and Brain Sciences, Dartmouth College, Hanover, NH 03755, USA;3. Department of Anatomy, Southern Illinois University School of Medicine, 1135 Lincoln Drive, Mailcode #6523, Carbondale, IL 62901, USA;4. Department of Mathematical Sciences, Northern Illinois University, DeKalb, IL 60115-2892, USA;5. Canadian Centre for Behavioural Neuroscience, University of Lethbridge, 4401 University Drive, Lethbridge, Alberta T1K3M4, Canada;1. Institute of Medical Psychology, Charité–Universitätsmedizin, Berlin, Germany;2. Berlin School of Mind and Brain, Humboldt Universität zu, Berlin, Germany;1. Centre for Human Factors and Sociotechnical Systems, University of the Sunshine Coast, Maroochydore DC, QLD 4558, Australia;2. Loughborough Design School, Loughborough University, LE11 3TU, United Kingdom;3. Queensland University of Technology,Centre for Accident Research and Road Safety – Queensland(CARRS-Q), Kelvin Grove, QLD 4059, Australia;4. Research School of Psychology, The Australian National University, Canberra, ACT 2601, Australia |
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| Abstract: | The goal of this study is to characterize observers’ abilities to detect gradual changes and to explore putative dissociations between conscious experience of change and behavioral adaptation to a changing stimulus. We developed a new experimental paradigm in which, on each trial, participants were shown a dot pattern on the screen. Next, the pattern disappeared and participants had to reproduce it. In some conditions, the target pattern was incrementally rotated over successive trials and participants were either informed or not of this change. We analyzed both awareness of the changes and the dynamics of behavioral adaptation, in a way that makes it possible to assess both variability and accuracy as they change over time. Results indicate a dissociation between change awareness and behavioral adaptation to the changes, and support the notion that unconscious representations of visual stimuli are more precise and detailed than previously suggested. We discuss the implications of these results for theories of change detection. |
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