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Walker, Bruce N.

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Author: Mauney, Lisa M. × End date: 2009 × Start date: 2000 ×

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Now showing 1 - 3 of 3
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    The Use of Different Technologies During a Medical Interview: Effects on Perceived Quality of Care
    (Georgia Institute of Technology, 2007-10) Caldwell, Britt ; DeBlasio, Julia M. ; Jacko, Julie A. ; Kintz, Erin ; Lyons, Kent ; Mauney, Lisa M. ; Starner, Thad ; Walker, Bruce N.
    This two-phase study examines a physician’s use of one of five different types of technology to note a patient’s symptoms during the medical interview. In this between-subjects design, 342 undergraduates viewed one of several videos that demonstrated one condition of the doctor/patient interaction. After viewing the interaction, each participant completed a series of questionnaires that evaluated their general satisfaction with the quality of care demonstrated in the medical interview. A main effect of technology condition was present in both phases. Further, in Phase 2 we found that drawing the participant’s attention to the type of technology used has a divergent effect on their general satisfaction with the doctor/patient interaction depending on the technology condition. These findings have implications for healthcare providers such as how to address technology and which type of technology to use.
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    Individual Differences and the Field of Auditory Display: Past Research, A Present Study, and an Agenda for the Future
    (Georgia Institute of Technology, 2007-06) Mauney, Lisa M. ; Walker, Bruce N.
    There has been some interest in the study of individual differences in the field of auditory displays, but we argue that there is a much greater potential than has been realized, to date. Relevant types of individual differences that may be applicable to interpreting auditory information include perceptual abilities, cognitive abilities, musical abilities, and learning styles. There are many measures of these individual differences available; however, they have not been thoroughly utilized in the auditory display arena. We discuss several types of individual differences relevant to auditory displays. We then present some examples of past research, along with the results of a current investigation of individual differences in auditory displays. Finally, we propose an agenda as to what research and tests should be used to further study this area.
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    Individual differences, cognitive abilities, and the interpretation of auditory graphs
    (Georgia Institute of Technology, 2004-07) Walker, Bruce N. ; Mauney, Lisa M.
    Auditory graphs exploit pattern recognition in the auditory system, but questions remain about the relationship between cognitive abilities, demographics, and sonification interpretation. Subjects completed a magnitude estimation task relating sound dimensions to data dimensions. Subjects also completed a working memory task (2-back task) and a spatial reasoning task (Raven's Progressive Matrices) to assess cognitive abilities. Demographics, such as gender, age, handedness, and musical experience, were also reported and included in the analysis. A stepwise multiple regression analysis was performed to determine the relationship between the independent (cognitive abilities and demographics) and dependent (individual slopes and R-squared values) variables. The regression analysis indicates some support for most of the predictor variables, especially predicting R-squared values. The 2-back task does not seem to contribute significantly to the interpretation of sonifications and auditory graphs. However, Raven's and many of the demographic variables do show predictive value for interpretation of auditory graphs.