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A Comparison of Low-Tech Eye Gaze Methods

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The purpose of this study was to investigate speed, accuracy, and personal preference when comparing three low-tech eye gaze methods: EyeLink, E-tran, and Partner-Assisted Scanning (PAS). The study was based off of a previous study by Roman, Quach, Coggiola, and Moore (2010). However, for this study the target participant age range was larger including adults 18 years or older, who are fluent English speakers and who did not use augmentative and alternative communication (AAC). In addition, the same transparent plastic eye gaze board with the English alphabet was used for all three methods and lengthier spelling stimuli were added. Three separate one-hour sessions were used to describe and practice each of the three eye gaze methods. A handout with detailed instructions and an instructional video was provided to participants at the beginning of the session. After the participants received training, the investigators read aloud six common vocabulary words one at a time. The participants spelled the target word using one of the three eye gaze methods after the word was said aloud. Once all six words were spelled, four short phrases were said aloud and the participants were required to spell each targeted phrase. Follow up interviews were administered following each of the three sessions to gauge the participants’ experience with the eye gaze method used during that session. A final interview was administered to attain information regarding participant overall experience and preference. Conclusions of the study as well as implications for intervention will be discussed at the presentation.

Author(s):

Jaclyn James    
University of Northern Iowa
United States

Kyle Saddoris    
University of Northern Iowa
United States

Evette Edmister    
University of Northern Iowa
United States

 

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