June 2004
Volume 4, Issue 8
Free
Vision Sciences Society Annual Meeting Abstract  |   August 2004
Diagnostic Colors Contribute to the Early Stages of Scene Categorization: Behavioral and Neurophysiological Evidence
Author Affiliations
  • Valerie Goffaux
    Cognitive Neuroscience Research Unit, University of Louvain, Belgium
  • Corentin Jacques
    Cognitive Neuroscience Research Unit, University of Louvain, Belgium
  • Andre Mouraux
    Cognitive Neuroscience Research Unit, University of Louvain, Belgium
  • Aude Oliva
    Department of Psychology and Cognitive Science Program, Michigan State University, USA
  • Philippe G. Schyns
    Department of Psychology, University of Glasgow, UK
  • Bruno Rossion
    Cognitive Neuroscience Research Unit, University of Louvain, Belgium
Journal of Vision August 2004, Vol.4, 873. doi:10.1167/4.8.873
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      Valerie Goffaux, Corentin Jacques, Andre Mouraux, Aude Oliva, Philippe G. Schyns, Bruno Rossion; Diagnostic Colors Contribute to the Early Stages of Scene Categorization: Behavioral and Neurophysiological Evidence. Journal of Vision 2004;4(8):873. doi: 10.1167/4.8.873.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

We examined the effects of color cues on the express categorization of natural scenes. Using a go/no-go paradigm known to be sensitive to fast recognition processes, we measured the early Event Related Potential (ERP) correlates of scene categorization behavior to elucidate the processing stage at which colors contribute. Observers were presented with scene pictures belonging to four color-diagnostic categories (desert, forest, canyon and coastline). Scene pictures could come in one of three forms: diagnostically colored, gray-scale and nondiagnostically colored. In a verification task, observers were instructed to respond whenever the presented scene picture matched with a previously presented category name. Reaction times and categorization accuracy were optimal when the stimuli were presented in their original diagnostically colored version, followed by their gray-scale version, followed by their nondiagostically colored version. These effects were mirrored in the early (i.e. 150 ms following stimulus onset) ERP frontal correlates, whose onset was sped up for diagnostically colored (in comparison to gray-scale), and also for diagnostically colored and gray-scale (in comparison to nondiagnostically colored scenes). Frontal ERP amplitudes were also decreased for gray-scale and nondiagnostically colored scenes. Together, the results suggest that diagnostic colors are part of the scene gist responsible for express scene categorizations.

Goffaux, V., Jacques, C., Mouraux, A., Oliva, A., Schyns, P. G., Rossion, B.(2004). Diagnostic Colors Contribute to the Early Stages of Scene Categorization: Behavioral and Neurophysiological Evidence [Abstract]. Journal of Vision, 4( 8): 873, 873a, http://journalofvision.org/4/8/873/, doi:10.1167/4.8.873. [CrossRef]
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