Applying spindex auditory cues while driving and performing a secondary search task

Gable, Thomas Matthew

Title:

Applying spindex auditory cues while driving and performing a secondary search task

dc.contributor.advisor	Walker, Bruce N.
dc.contributor.author	Gable, Thomas Matthew
dc.contributor.committeeMember	Catrambone, Richard
dc.contributor.committeeMember	Duarte, Audrey
dc.contributor.committeeMember	Durso, Frank
dc.contributor.department	Psychology
dc.date.accessioned	2016-08-22T12:20:34Z
dc.date.available	2016-08-22T12:20:34Z
dc.date.created	2015-08
dc.date.issued	2015-07-08
dc.date.submitted	August 2015
dc.date.updated	2016-08-22T12:20:34Z
dc.description.abstract	This thesis investigated the impact of applying “spindex” text to speech (TTS) auditory cues in a long-list searching task on a cell phone while driving as compared to a visuals-only interface. Previous research has found that when using advanced auditory cues (i.e., spindex), both participants’ visual dwell time off the road and subjective workload is lower than when using visuals-only displays. The current study expanded on previous research by investigating the impact of these cues through two factors of distraction – workload and willingness to engage – as well as investigating the use of the Visual Auditory Cognitive and Psychomotor (VACP) predictive workload scale. Previously investigated workload measures of visual behaviors, subjective workload, primary and secondary task performance, and preferences were supplemented with additional measures via physiological detection and VACP as a predictive measure of workload. The newly added factor of willingness to engage was investigated via the inclusion of two different driving difficulties (hard or easy), by modifying the roadway type (city or highway). Results support previous findings of lower workload when novice users employ the spindex-TTS cues compared to visuals-only as seen through increased dwell time on the driving task, less glance frequency off the driving task, lower subjective demand, and higher perceived performance, but no conclusive results were seen in regards to willingness to engage. In addition, the patterns of workload predictions from the VACP measure matched well with data collected during the experiment. These results and their implications for the application of spindex-TTS cues as well as the future measurement of willingness to engage and use of the VACP scale as a predictor of workload are discussed.
dc.description.degree	M.S.
dc.format.mimetype	application/pdf
dc.identifier.uri	http://hdl.handle.net/1853/55523
dc.language.iso	en_US
dc.publisher	Georgia Institute of Technology
dc.subject	Advanced auditory cues
dc.subject	Driving
dc.subject	In-vehicle tasks
dc.subject	Workload
dc.subject	Visual attention
dc.title	Applying spindex auditory cues while driving and performing a secondary search task
dc.type	Text
dc.type.genre	Thesis
dspace.entity.type	Publication
local.contributor.advisor	Walker, Bruce N.
local.contributor.corporatename	College of Sciences
local.contributor.corporatename	School of Psychology
relation.isAdvisorOfPublication	5bedf397-416e-498e-aa60-c67c0ee43473
relation.isOrgUnitOfPublication	85042be6-2d68-4e07-b384-e1f908fae48a
relation.isOrgUnitOfPublication	768a3cd1-8d73-4d47-b418-0fc859ce897d
thesis.degree.level	Masters