Hands-free administration of subjective workload scales: Acceptability in a surgical training environment

Carswell, C. Melody; Lio, Cindy H.; Grant, Russell C.; Klein, Martina I.; Clarke, David M.; Seales, W. Brent; Strup, Stephen E.

doi:10.1016/j.apergo.2010.06.003

Cited by 35 publications

(11 citation statements)

References 19 publications

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“…As compared to other methods [10,11] used to assess mental workload, the NASA-TLX is relatively easy and quick to administer test. It can provide an additional source of data that can collaborate with traditional methods of assessing performance such as time and accuracy.…”

Section: Nasa-tlx Scoresmentioning

confidence: 99%

Training improves laparoscopic tasks performance and decreases operator workload

Tan

et al. 2015

Surg Endosc

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Section: Nasa-tlx Scoresmentioning

confidence: 99%

Training improves laparoscopic tasks performance and decreases operator workload

Tan

et al. 2015

Surg Endosc

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“…Consequently, they suggest that it would be desirable in calculating a global score to first delete items from the questionnaire that did not meet a "greater-than-zero usage" standard. One approach to such a standard used by Carswell et al (2010) is to include only those resource dimensions in which significantly more than 50% of the observers gave ratings other than zero in each experimental condition. Toward that end, the percentage of observers using a rating greater than zero was determined for each of the 17 resource dimensions in the presence and in the absence conditions.…”

Section: Methodsmentioning

confidence: 99%

Viewing the Workload of Vigilance Through the Lenses of the NASA-TLX and the MRQ

et al. 2013

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Objective: The aim of this study was to compare the effectiveness of a new index of perceived mental workload, the Multiple Resource Questionnaire (MRQ), with the standard measure of workload used in the study of vigilance, the NASA Task Load Index (NASA-TLX).Background: The NASA-TLX has been used extensively to demonstrate that vigilance tasks impose a high level of workload on observers. However, this instrument does not specify the information-processing resources needed for task performance. The MRQ offers a tool to measure the workload associated with vigilance assignments in which such resources can be identified.Method: Two experiments were performed in which factors known to influence task demand were varied. Included were the detection of stimulus presence or absence, detecting critical signals by means of successive-type (absolute judgment) and simultaneous-type (comparative judgment) discriminations, and operating under multitask vs. single-task conditions.Results: The MRQ paralleled the NASA-TLX in showing that vigilance tasks generally induce high levels of workload and that workload scores are greater in detecting stimulus absence than presence and in making successive as compared to simultaneous-type discriminations. Additionally, the MRQ was more effective than the NASA-TLX in reflecting higher workload in the context of multitask than in single-task conditions. The resource profiles obtained with MRQ fit well with the nature of the vigilance tasks employed, testifying to the scale's content validity.Conclusion: The MRQ may be a meaningful addition to the NASA-TLX for measuring the workload of vigilance assignments.Application: By uncovering knowledge representation associated with different tasks, the MRQ may aid in designing operational vigilance displays.

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“…The main assumption in MW interpretation is that each person has a relatively fixed cognitive capacity [ 32 ]. Commonly, MW refers to the portion of a person’s total mental capacity which is loaded [ 45 ]. Mental workload was estimated using the PSD of signals at the C3-C4, Cz-POz, F3-Cz, F3-C4, Fz-C3, and Fz-POz channels [ 32 ].…”

Section: Methodsmentioning

confidence: 99%

Dynamic changes of brain functional states during surgical skill acquisition

Shafiei

Hussein

2018

PLoS ONE

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There is lack of a standardized measure of technical proficiency and skill acquisition for robot-assisted surgery (RAS). Learning surgical skills, in addition to the interaction with the machine and the new surgical environment adds to the complexity of the learning process. Moreover, evaluation of surgeon performance in operating room is required to optimize patient safety. In this study, we investigated the dynamic changes of RAS trainee’s brain functional states by practice. We also developed brain functional state measurements to find the relationship between RAS skill acquisition (especially human-machine interaction skills) and reconfiguration of brain functional states. This relationship may help in providing trainees with helpful, structured feedback regarding skills requiring improvement and will help in tailoring training activities.

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Hands-free administration of subjective workload scales: Acceptability in a surgical training environment

Cited by 35 publications

References 19 publications

Training improves laparoscopic tasks performance and decreases operator workload

Training improves laparoscopic tasks performance and decreases operator workload

Viewing the Workload of Vigilance Through the Lenses of the NASA-TLX and the MRQ

Dynamic changes of brain functional states during surgical skill acquisition

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