Revisiting pulse rate, frequency and perceived urgency: have relationships changed and why?

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1853/44420

Title: Revisiting pulse rate, frequency and perceived urgency: have relationships changed and why?
Author: Gonzalez, Christian ; Lewis, Bridget A. ; Baldwin, Carryl L.
Abstract: As the presence of technology within vehicles increases, alerts and warnings need to not only be salient, but also correctly mapped to events of varying time sensitivity. The goal of this research was to reevaluate key auditory parameters within a driving context that have been shown to exhibit specific relationships with perceived urgency. We examined two commonly manipulated alert parameters: frequency and pulse rate. In accordance with the existing literature, we used previously validated psychophysical techniques to describe how changes in stimuli are reflected in changes of perceived urgency ratings across four different experimental conditions. Our findings indicate that pulse rate may be a more reliable and robust parameter for conveying levels of urgency than frequency. Our results also suggest that the relationship between pulse rate and perceived urgency may have weakened since the psychophysical work of the early 1990’s. Auditory alert designers wishing to convey varying levels of urgency within the variable environment of the vehicle cockpit may be more successful utilizing pulse rate than frequency.
Description: Presented at the 18th International Conference on Auditory Display (ICAD2012) on June 18-21, 2012 in Atlanta, Georgia. Reprinted by permission of the International Community for Auditory Display, http://www.icad.org.
Type: Proceedings
URI: http://hdl.handle.net/1853/44420
ISSN: 2168-5126
Citation: Proceedings of the 18th International Conference on Auditory Display, Atlanta, GA, USA, 18-21 June 2012. Ed. Michael A. Nees, Bruce N. Walker, Jason Freeman. The International Community for Auditory Display, 2012. 44-51.
Date: 2012-06
Contributor: George Mason University
Relation: ICAD2012. Papers II: Theory and Methods
Publisher: Georgia Institute of Technology
Subject: Auditory display
Auditory alarms
Pulse rate
Perceived urgency

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