TitleTo What Extent Do Listeners Use Aural Information When It Is Present?
Publication TypeConference Paper
Year of Publication2011
AuthorsBrock, DP, McClimens, B
Conference NameThe 17th Annual International Conference on Auditory Display
Date Published06/2011
PublisherInternational Community for Auditory Display
Conference LocationBudapest, Hungary

In three of the manipulations in a 2009 dual-task performance
study, virtual auditory cues were used to alert participants to the
onset of three kinds of decision events in the secondary, but more
demanding of the two tasks. Two aural parameters, the manner
in which the cues were spatially presented and the level of taskrelated
information they carried, were systematically altered to
compare the impact of these factors on performance. In the work
presented here, we focus on performance measures that can be correlated
with participants’ use of aurally-based task-related information
in the study. Although secondary task decision response
times were nominally the same in each manipulation, an analysis
of head tracking data shows that, when they were cued, participants
turned their attention from the primary to the secondary task
significantly sooner when a single sound (always the same) was
used to announce decision events. In contrast, when a different
sound was used to signal each kind of decision event, participants,
after being cued, spent less time (but not significantly so) examining
the secondary task before entering their responses. The nature
of this tradeoff and its implications for information design in auditory
cueing is discussed.

Refereed DesignationRefereed
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