Measurement Invariance of the Nasa TLX

Bustamante, Ernesto A.; Spain, Randall D.

doi:10.1177/154193120805201946

Cited by 46 publications

(22 citation statements)

References 4 publications

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“…The NASA‐TLX is a subjective mental load self‐assessment questionnaire. Following the measurement invariance of the different scales of the original test (Bustamante & Spain, ), we used a single dimension of the NASA‐TLX rating procedure that derives the mental load score based on the rating on a 7‐point score.…”

Section: Methodsmentioning

confidence: 99%

Reduced mental load in learning a motor visual task with virtual 3D method

Dan

Reiner

2017

Computer Assisted Learning

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Distance learning is expanding rapidly, fueled by the novel technologies for shared recorded teaching sessions on the Web. Here, we ask whether 3D stereoscopic (3DS) virtual learning environment teaching sessions are more compelling than typical two-dimensional (2D) video sessions and whether this type of teaching results in superior learning. The research goal was to compare learning in 2 virtual learning scenarios-on 2D displays and with an identical 3DS scenario. Participants watched a 2D or 3DS video of an instructor demonstrating a box origami paper-folding task. We compared participants' folding test scores and self-assessment questionnaires of the teaching scenarios and calculated their cognitive load index (CLI) based on electroencephalogram measurements during the observation periods. Results showed a highly significant difference between participants' folding test scores, CLI, and self-assessment questionnaire results in 2D compared to 3DS sessions. Our findings indicate that employing stereoscopic 3D technology over 2D displays in the design of emerging virtual and augmented reality applications in distance learning has advantages. KEYWORDS2D versus 3D immersion, cognitive load index, EEG theta and alpha power, immersive virtual learning

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Section: Methodsmentioning

confidence: 99%

Reduced mental load in learning a motor visual task with virtual 3D method

Dan

Reiner

2017

Computer Assisted Learning

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“…Items were scored from 0 to 100, with higher scores representing stronger endorsements of the item. Ratings from NASA-TLX were combined to an overall task load score (Bustamante & Spain, 2008).…”

Section: Rating Scales Measuring Subjective Effectsmentioning

confidence: 99%

GABAergic modulation of performance in response inhibition and interference control tasks

Faßbender¹,

K²,

Jv³

et al. 2020

Preprint

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Background: Inhibitory control is a crucial executive function with high relevance to mental and physical wellbeing. However, there are still unanswered questions regarding its neural mechanisms, including the role of the major inhibitory neurotransmitter, γ-aminobutyric acid (GABA). Aims: This study examined the effects of lorazepam (0.5 mg and 1 mg), a positive allosteric modulator at the GABAA receptor, on response inhibition and interference control. We also explored the heterogeneity of inhibitory control and calculated delta plots to explore whether lorazepam affects the gradual build-up of inhibition and activation over time. Method: A sample of N=50 healthy participants performed antisaccade, Eriksen flanker and Simon tasks in a within-subjects, placebo-controlled, double-blind randomised design. Results: Lorazepam increased mean reaction times (MRT) and error rates dose-dependently in all tasks (p≤.005). In the antisaccade and Simon tasks, lorazepam increased congruency effects for error rate (p≤.029) but not for MRT (p≥.587). In the Eriksen flanker task, both congruency effects were increased by the drug (p≤.031). Delta plots did not reflect any drug-induced changes in inhibition and activation over time. Delta plots for MRT in the Simon task were negative-going, as expected, whereas those for the antisaccade and flanker tasks were positive-going. Conclusions: This study provides clear evidence for GABAergic involvement in inhibitory control. Furthermore, our findings highlight the diversity of inhibitory control while also pointing out similarities between different inhibitory control tasks. In contrast to MRTs and error rates, the cognitive processes provided by delta plots appear not to be sensitive to GABAergic modulation.Draft version, 02.04.2020. This paper has not been peer reviewed. Please do not copy or cite without author's permission.

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“…For data analysis, we processed the raw TLX data. This may be a more reliable use of the TLX compared with using part two to calculate an overall weight-adjusted score [5].…”

Section: Qualitative Data Collectionmentioning

confidence: 99%

Manual segmentation versus semi-automated segmentation for quantifying vestibular schwannoma volume on MRI

McGrath

Dorent

et al. 2020

Int J CARS

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Purpose Management of vestibular schwannoma (VS) is based on tumour size as observed on T1 MRI scans with contrast agent injection. The current clinical practice is to measure the diameter of the tumour in its largest dimension. It has been shown that volumetric measurement is more accurate and more reliable as a measure of VS size. The reference approach to achieve such volumetry is to manually segment the tumour, which is a time intensive task. We suggest that semi-automated segmentation may be a clinically applicable solution to this problem and that it could replace linear measurements as the clinical standard. Methods Using high-quality software available for academic purposes, we ran a comparative study of manual versus semiautomated segmentation of VS on MRI with 5 clinicians and scientists. We gathered both quantitative and qualitative data to compare the two approaches; including segmentation time, segmentation effort and segmentation accuracy. Results We found that the selected semi-automated segmentation approach is significantly faster (167 s vs 479 s, p < 0.001), less temporally and physically demanding and has approximately equal performance when compared with manual segmentation, with some improvements in accuracy. There were some limitations, including algorithmic unpredictability and error, which produced more frustration and increased mental effort in comparison with manual segmentation. Conclusion We suggest that semi-automated segmentation could be applied clinically for volumetric measurement of VS on MRI. In future, the generic software could be refined for use specifically for VS segmentation, thereby improving accuracy.

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Measurement Invariance of the Nasa TLX

Cited by 46 publications

References 4 publications

Reduced mental load in learning a motor visual task with virtual 3D method

Reduced mental load in learning a motor visual task with virtual 3D method

GABAergic modulation of performance in response inhibition and interference control tasks

Manual segmentation versus semi-automated segmentation for quantifying vestibular schwannoma volume on MRI

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