Visual Displays: Developing a Computational Model Explaining the Global Effect

Date
2009
Journal Title
Journal ISSN
Volume Title
Publisher
Rice University
Description
This paper was submitted by the author prior to final official version. For official version please see http://hdl.handle.net/1911/61831
Abstract

This work aims to integrate Byrne’s theory of visual salience computation (2006) with Salvucci’s model of eye movements (2001) by testing participants on a visual search task similar to Findlay (1997). By manipulating the number, salience, and spacing of targets, participants exhibited the global effect averaging phenomena during the first recorded saccade, whereby short‐latency saccades land in between adjacent objects. Previous work has argued that the saccadic targeting system causing the averaging is influenced both by the salience and arrangement of objects displayed (Rao, Zelinsky, Hayho, & Ballard, 2002). However, to accurately account for these results, we did not have to couple the salience system with the saccadic targeting system. Instead, the systems work sequentially and in isolation, whereby the salience system simply hands off the next object to examine to the targeting system, whose accuracy depends only on saccadic latency and the location of the targeted and non‐targeted items.

Description
This paper was submitted by the author prior to final official version. For official version please see http://hdl.handle.net/1911/61831
Degree
Master of Arts
Type
Keywords
Distractor ratio, ACT-R, Visual search, Computatonal model, Global effect
Citation

Stanley, Clayton. "Visual Displays: Developing a Computational Model Explaining the Global Effect." (2009) Rice University: https://hdl.handle.net/1911/27362.

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