IBM User Experience Research group puts the dot on the "I" (25 Feb 2005)
For example, team members can predict how people will perform on a reading test by tracking where their eyes are gazing while reading text on a Web browser. Team members have performed studies showing that readers can read faster with fewer regressions and retain more information if paragraphs are formatted in narrower column widths. Other studies have shown how users respond to short lists versus long lists, or how to segment content on a Web page into separate boxes so that readers find it more easily. In a paper, "Conversing with the User based on eye-gazing patterns," the team showed that it's even possible to sense users' interest based on eye-gaze patters, which can play an important role in managing multimodal human-computer dialogue.
Article URL: http://www-306.ibm.com/ibm/easy/eou_ext.nsf/publish/5005
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