Tactile displays for multitask environments: The role of concurrent task processing code

Ferris, Thomas K.; Hameed, Shameem; Sarter, Nadine

doi:10.1109/whc.2009.4810860

Cited by 3 publications

(4 citation statements)

References 21 publications

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“…We begin our discussion with an examination of our hypotheses, then further reflect on their implications. [38]. Their visual task had a significant effect on RT but similarly to our results, the overall effect of task on accuracy (detection of the type of visual stimuli) did not reach significance; in particular, while their TC task impacted accuracy, their TS task (which seems more similar to our visual task) did not.…”

Section: Summary and Discussionsupporting

confidence: 72%

[D71] Periodic Vibrotactile Guidance

Karuei

MacLean

2014

2014 IEEE Haptics Symposium (HAPTICS)

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Emergence of mobile technologies, with their ever increasing computing power, embedded sensors, and connectivity to the Internet has created many new applications such as navigational guidance systems. Unfortunately, these devices can become problematic by inappropriate usage or overloading of the audiovisual channels. Wearable haptics has come to the rescue with the promise of offloading some Glossary ANOVA Analysis of Variance, a set of statistical techniques to identify sources of variability between groups CHI

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Section: Summary and Discussionsupporting

confidence: 72%

[D71] Periodic Vibrotactile Guidance

Karuei

MacLean

2014

2014 IEEE Haptics Symposium (HAPTICS)

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“…Ferris et al presented vibration patterns from back-mounted tactors to participants in a driving simulation, with categorical (TC) or spatial (TS) visual tasks [7]. Their visual task had a significant effect on RT but similarly to our results, the overall effect of task on accuracy (detection of the type of visual stimuli) did not reach significance; in particular, while their TC task impacted accuracy, their TS task (which seems more similar to our visual task) did not.…”

Section: H3 -Movementmentioning

confidence: 99%

Detecting vibrations across the body in mobile contexts

Karuei

MacLean

Foley-Fisher

et al. 2011

Proceedings of the SIGCHI Conference on Human Factors in Computing Systems

115

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In this paper we explore the potential and limitations of vibrotactile displays in practical wearable applications, by comparing users' detection rate and response time to stimuli applied across the body in varied conditions. We examined which body locations are more sensitive to vibrations and more affected by movement; whether visual workload, expectation of location, or gender impact performance; and if users have subjective preferences to any of these conditions. In two experiments we compared these factors using five vibration intensities on up to 13 body locations. Our contributions are comparisons of tactile detection performance under conditions typifying mobile use, an experiment design that supports further investigation in vibrotactile communication, and guidelines for optimal display location given intended use.

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“…For example, MAP rate of change was encoded temporally, so its interpretation may interfere with auditorily monitoring heart rate or compressing the simulated ventilation bag at regular intervals -concurrent tasks which also involve temporal processing. If this processing interference leads people to "tune out" the tactons, then presenting the information via different modulations of the tactile signal might lead to more universally interpretable, and thus useful tactile displays (e.g., Ferris et al, 2009). In conclusion, the results from this study show the potential for tactile displays to better support non-visual anesthetic monitoring and management of patient physiology.…”

Section: Discussionmentioning

confidence: 71%

“…These tactors were arranged vertically, secured via an elastic belt to the mid-lower back and via shoulder strap near the shoulder blade, offset approximately 10 cm to the right of the spine (on the same side as the physiology display). The back was chosen as the presentation site as it has proven effective in earlier studies (e.g., Ferris, Hameed, & Sarter, 2009) and was identified by anesthesia providers as a location that was unlikely to interfere with existing tasks (Ferris, 2008). The tactors oscillated a 7.5-mm "skin contactor" at frequencies near 250 Hz with a displacement of approximately 1 mm.…”

Section: Tacton Displaysmentioning

confidence: 99%

Supporting Anesthetic Monitoring through Tactile Display of Physiological Parameters

Ferris

Sarter

2009

Proceedings of the Human Factors and Ergonomics Society Annual

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Breakdowns in anesthetic monitoring are a frequent contributor to critical incidents in the Operating Room (OR). They can be attributed to a lack of effective attention guidance when traditional visual and auditory display methods are used to present patient physiological data. The current experiment therefore examines the effectiveness of tactile displays to better support anesthetic monitoring. Participants played the role of anesthesiologist in a desktop simulation of an OR environment. They were responsible for completing a visually-demanding intubation task while concurrently monitoring and managing a set of physiological parameters which were displayed using traditional methods. Three tactile display designs redundantly communicated the state and dynamics of one critical physiological parameter, blood pressure. Initial results show improved performance on the intubation and monitoring tasks for all tactile display conditions when compared to conditions with visual and auditory displays only. The most effective tactile patterns communicated both current state and trend information for blood pressure. The findings from this study can be applied to the design of tactile displays for monitoring tasks not only in the OR but in other complex, datarich environments, such as aviation or process control.

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Tactile displays for multitask environments: The role of concurrent task processing code

Cited by 3 publications

References 21 publications

[D71] Periodic Vibrotactile Guidance

[D71] Periodic Vibrotactile Guidance

Detecting vibrations across the body in mobile contexts

Supporting Anesthetic Monitoring through Tactile Display of Physiological Parameters

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