Atchley, Ruth AnnYoung, Keith2008-09-082008-09-082008-02-252007http://dissertations.umi.com/ku:2331https://hdl.handle.net/1808/4114A problem in divided visual field studies which use event-related potentials as a dependent measure is the large number of horizontal eye movements participants make during experimental trials. Past attention research suggests that eye movements to lateralized targets should be significantly reduced using a dynamic, offset mask, causing a reduction in attentional capture. The current study attempted to replicate past divided visual field language studies using offset masking procedures. Using a basic offset procedure, eye movements were not reduced in Experiment 1. Experiment 3, however, did see a significant reduction in eye movements using a dynamic offset masking procedure developed in Experiment 2. Low accuracy rates were a concern throughout. In conclusion, horizontal eye movements can be reduced with a dynamic offset procedure but the low accuracy rates and the inconsistent behavioral findings throughout the study do not support using this technique.81 pagesENThis item is protected by copyright and unless otherwise specified the copyright of this thesis/dissertation is held by the author.Cognitive psychologyAttentionDivided visual fieldLexical decisionMaskingThesisopenAccess