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Competition for consciousness among visual events: the Psychophysics of reentrant visual processes (2000)
| Venue: | Journal of Experimental Psychology: General |
| Citations: | 184 - 18 self |
BibTeX
@ARTICLE{Lollo00competitionfor,
author = {Vincent Di Lollo and James T. Enns and Ronald A. Rensink},
title = {Competition for consciousness among visual events: the Psychophysics of reentrant visual processes},
journal = {Journal of Experimental Psychology: General},
year = {2000},
volume = {129},
pages = {481--507}
}
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Abstract
Advances in neuroscience implicate reentrant signaling as the predominant form of communication between brain areas. This principle was used in a series of masking experiments that defy explanation by feed-forward theories. The masking occurs when a brief display of target plus mask is continued with the mask alone. Two masking processes were found: an early process affected by physical factors such as adapting luminance and a later process affected by attentional factors such as set size. This later process is called masking by object substitution, because it occurs whenever there is a mismatch between the reentrant visual representation and the ongoing lower level activity. Iterative reentrant processing was formalized in a computational model that provides an excellent fit to the data. The model provides a more comprehensive account of all forms of visual masking than do the long-held feed-forward views based on inhibitory contour interactions. From the time a stimulus first enters the eye to the time a percept emerges into consciousness, the initial stimulus has been coded at several levels in the visual system. One of the main goals in studying visual information processing is to specify the representations at each level and the temporal sequence between
Keyphrases
visual event reentrant visual process later process temporal sequence level activity brain area visual masking iterative reentrant processing predominant form comprehensive account long-held feed-forward view attentional factor feed-forward theory visual information processing set size physical factor visual system object substitution neuroscience implicate reentrant reentrant visual representation computational model several level inhibitory contour interaction early process main goal initial stimulus excellent fit brief display
