Volume 6, Number 10, Article 9, Pages 1093-1101 doi:10.1167/6.10.9 http://journalofvision.org/6/10/9/ ISSN 1534-7362
Induced visual fading of complex images
Daniel Simons
Department of Psychology and Beckman Institute, University of Illinois, Champaign, IL, USA
[home] [e-mail]
Alejandro Lleras
Department of Psychology and Beckman Institute, University of Illinois, Champaign, IL, USA
[home] [e-mail]
Susana Martinez-Conde
Barrow Neurological Institute, Phoenix, AZ, USA
[home] [e-mail]
David Slichter
Harvard University, Cambridge, MA, USA
[e-mail]
Eamon Caddigan
Department of Psychology and Beckman Institute, University of Illinois, Champaign, IL, USA
[home] [e-mail]
Gabriel Nevarez
Department of Psychology and Beckman Institute, University of Illinois, Champaign, IL, USA
[e-mail]
Abstract

Visual stimuli fade from awareness under retinal stabilization or careful fixation, a phenomenon documented by Troxler more than 200 years ago. Research on visual fading during normal visual fixation typically has been restricted to discrete, simple, low-contrast shapes presented peripherally against a uniform or textured background. In four experiments, we document a striking new visual fading effect in which entire photographs of scenes fade to a uniform luminance and hue during normal visual fixation. Critically, this “scene fading” can be induced almost instantaneously by some types of visual transients but not by others. These induced fading effects are sufficiently robust that they can be experienced by most observers in a single trial. Taken as a whole, the effects are inconsistent with simple contrast adaptation, gradual Troxler fading, or transient-induced fading. They are, however, consistent with the idea that small contrast decrements can induce fading of entire scenes. The methods provide a robust tool for the exploration of visual fading, and the results could have important implications for the role of filling-in and neural adaptation in our visual awareness of natural scenes and other complex stimuli.

View full-text

History
Received April 17, 2006; published September 26, 2006
Citation
Simons, D., Lleras, A., Martinez-Conde, S., Slichter, D., Caddigan, E., & Nevarez, G. (2006). Induced visual fading of complex images. Journal of Vision, 6(10):9, 1093-1101, http://journalofvision.org/6/10/9/, doi:10.1167/6.10.9.
Keywords
scenes, Troxler fading, contrast, adaptation, visual fading
Downloads
376 Total; 0.470 /day (DemandFactor)
 
Search
for related articles by these authors
for papers that cite this paper
Get citation






jov