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Examining the Efficacy of Vibrotactile Displays for Monitoring Patient Vital Signs: Six Laboratory Studies of Change Detection and State Identification

journal contribution
posted on 2023-12-14, 04:42 authored by P Sanderson, M McLanders, C Santomauro, J Tran, S Fouhy, J Shapiro, D Brown, E McNulty
Healthcare workers often monitor patients while moving between different locations and tasks, and away from conventional monitoring displays. Vibrotactile displays can provide patient information in vibrotactile patterns that are felt regardless of the worker’s location. We examined how effectively participants could identify changes in vibrotactile representations of patient heart rate (HR) and oxygen saturation (SpO2). In Experiment 1, participants identified changes in HR and SpO2 with greater than 90% accuracy while using vibrotactile displays configured in either an integrated or a separated format. In Experiment 2, incidental auditory and visual cues were removed and performance was still greater than 90% for the integrated display. In Experiments 3 and 4, ongoing tasks with low or high task load were introduced; high load worsened participants’ response accuracy and speed at identifying vital signs. In Experiments 5 and 6, alternative designs were tested, including a design with a seemingly more natural mapping of HR to vibrotactile stimulation. However, no design supported more accurate performance than the integrated display. Results are interpreted with respect to multiple resource theory, and constraints on conforming to design guidelines are noted. Vibrotactile displays appear to be viable and therefore potentially suitable for use in healthcare and other contexts.

History

Journal

Journal of Experimental Psychology: Applied

Volume

28

Pagination

10-34

Location

United States

ISSN

1076-898X

eISSN

1939-2192

Language

en

Publication classification

C1.1 Refereed article in a scholarly journal

Issue

1

Publisher

American Psychological Association (APA)