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VL2 04/16/08 Pelz Visual Gaze as a Marker of Attention in the Classroom

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According to Dr. Pelez, Resolution varies dramatically across the visual field. Dropping by a factor of 10 just degrees from the center of vision, humans move their eyes thousands of times each hour to sample the world with high-resolution central vision. Deaf students in sign-language interpreted classrooms with computer displays rely heavily on this sampling because peripheral vision is not clear enough to read text on a screen, read fingerspelling, or speechread. Getting such information from the computer on display, interpreter, and instructor presents a significant challenge.

"I will describe a project that measured the distribution of hearing and deaf students' gaze in a classroom setting by using a wearable eyetracking system. We compared the distribution and duration of gaze among hearing students, deaf students skilled in sign language, and deaf students who were novice signers as they watched 1) sign-language interpreted lectures presented live or on videotape, 2) lectures presented by an instructor using simultaneous communication or mediated by a sign-language interpreter, and 3) sign-language interpreted lectures presented at different speeds" by Jeff Pelz, Director of Visual Perception Laboratory, at Rochester Institute of Technology (RIT).
April 16

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