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2000: Graded effects in hierarchical figure-ground organization: Reply to Peterson (1999)
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| Venue: | Journal of Experimental Psychology: Human Perception and Performance |
| Citations: | 8 - 2 self |
BibTeX
@ARTICLE{Vecera992000:graded,
author = {Shaun P. Vecera and Randall C. O'reilly},
title = {2000: Graded effects in hierarchical figure-ground organization: Reply to Peterson},
journal = {Journal of Experimental Psychology: Human Perception and Performance},
year = {1999},
volume = {26},
pages = {1221--1231}
}
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Abstract
An important issue in vision research concerns the order of visual processing. S. P. Vecem and R. C. O'Reilly (1998) presented an interactive, hierarchical model that placed figure-ground segregation prior to object recognition. M. A. Peterson (1999) critiqued this model, arguing that because it used ambiguous stimulus displays, figme-ground processing did not precede object processing. In the current article, the authors respond to Peterson's (1999) interpretation of ambiguity in the model and her interpretation of what it means for figure-ground processing to come before object recognition. The authors argue that complete stimulus ambiguity is not critical to the model and that figure-ground precedes object recognition architecturally in the model. The arguments are supported with additional simulation results and an experiment, demonstrating that top-down inputs can influence figure-ground organization in displays that contain stimulus cues. According to many theories of visual perception, prior to object identification the visual system must solve the problem of deter-mining which retinal locations belong together or bind with one another. Grouping locations within the retinal array allows the visual system to determine provisionally which locations are oc-
Keyphrases
hierarchical figure-ground organization visual system figure-ground processing object processing figure-ground segregation vision research retinal array figme-ground processing complete stimulus ambiguity additional simulation result retinal location stimulus cue many theory visual processing figure-ground precedes current article visual perception object recognition top-down input important issue hierarchical model ambiguous stimulus display figure-ground organization
