Most Earcons Do Not Interfere with Spoken Passage Comprehension
2009
SUMMARY A cross-modal dual attention experiment was completed by 198 undergraduates in three blocks that each consisted of an orientation task and a concurrent listening task. For the orientation task, participants located regions on an LCD that were cued by speech or one of four types of symbolic auditorycues(i.e.earcons);theconcurrenttaskrequiredparticipantstolistentoandanswerquestions about GRE sample test passages. Results indicated the orientation task had no effect on comprehension of the passages compared to a passage-only control for four of the five auditory cue types. All auditory cues resulted in high performance for the orientation task, with speech and complex sounds exhibiting the highest performance. Implications for auditory display design and for assistive technologies for visually impaired persons are discussed. Copyright # 2008 John Wiley & Sons, Ltd.
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