Using Multisensory Haptic Integration to Improve Monitoring in the Intensive Care Unit
School of Medicine
Critical Care | Medical Education
Introduction: Alarm fatigue and medical alarm mismanagement reduces the quality of patient care and creates stressful work environments for clinicians. Here, the feasibility of a novel “prealarm” system that utilizes multisensory integration of auditory and haptic stimuli is examined as a possible solution.
Methods: Three vital signs (heart rate, blood pressure, and blood oxygenation) were represented by three musically distinct sounds that were combined into soundscapes and progressed through five pre-alarm zones (very low to very high). Three haptic conditions were tested with the auditory stimulus to determine the best combination of auditory and haptic stimulation. Qualitative data was collected through surveys and the NASA TLX index
Results: Alterations in frequency and timbre were most effective at transmitting information regarding changing vital sign zones with comparatively higher accuracy and quicker reaction time (RT), p < .01. The addition of haptic stimuli to the auditory soundscape caused no significant decline in study participant accuracy or RT. However, two weeks after training, participants performed the tasks significantly faster ( p < .001) and felt the alarm monitoring task was significantly less cognitively demanding ( p < .01), compared to the unisensory condition. Participants also felt more confident in identifying changing vital signs with the addition of haptic stimuli.
Discussion: The current study demonstrates that multisensory signals do not diminish the perception of transmitted information and suggest efficient training benefits over unimodal signals. Multisensory training may be beneficial over time compared to unisensory training due to a stronger consolidation effect. The potential integration of haptic input with existing auditory alarm systems and training is supported.
multisensory integration, haptic, alarm, alarm fatigue, mulitmodal
DOI of Published Version
Kendall J. Burdick, Abigail S. Bell, Mary C. McCoy, Jonathan L. Samuels, Alex S. Jolly, Seema S. Patel, Julia B. Balas, K. Jakob Patten & Joseph J. Schlesinger (2019) Using Multisensory Haptic Integration to Improve Monitoring in the Intensive Care Unit, Auditory Perception & Cognition, 2:4, 188-206, DOI: 10.1080/25742442.2020.1773194
Auditory Perception and Cognition
Burdick KJ, Bell AS, McCoy MC, Samuels JL, Jolly AS, Patal SS, Balas JB, Patten KJ, Schlesginer JJ. (2020). Using Multisensory Haptic Integration to Improve Monitoring in the Intensive Care Unit. School of Medicine Student Publications. https://doi.org/10.1080/25742442.2020.1773194. Retrieved from https://escholarship.umassmed.edu/som_pubs/12