Effects of display curvature and task duration on proofreading performance, visual discomfort, visual fatigue, mental workload, and user satisfaction

Objective: This study examined the effects of display curvature, presbyopia, and task duration on visual fatigue, task performance, and user satisfaction. Background: Although curved displays have been applied to diverse display products, and some studies reported their benefits, it is still unknown whether the effects of display curvature are presbyopia-specific. Method: Each of 64 individuals (eight nonpresbyopes and eight presbyopes per display curvature) performed four 15-min proofreading tasks at one display curvature radius setting (600R, 1140R, 4000R, and flat; mm). Diverse measurements were obtained to assess visual fatigue, task performance, and user satisfaction. Results: The mean pupil diameter was the largest with 1140R, indicating this curvature radius was associated with the least development of visual fatigue; 600R was comparable with 1140R in terms of pupil diameter. The presbyopic group showed a 28.5% slower proofreading speed compared with the nonpresbyopic group, whereas their proofreading accuracy was comparable. For both groups, the mean visual fatigue increased significantly during the first 15 min of proofreading, as indicated by a decrease of 0.11 mm in the mean pupil diameter, an increase of 3.8 in the mean bulbar conjunctival redness, and an increase of 9.13 in the mean eye complaint questionnaire score. Conclusion: The effect of display curvature was not presbyopia-specific. Low visual fatigue was observed with 1140R and 600R. Application: Display curvature radii near or in the range of 600R and 1140R and frequent breaks are recommended for both presbyopic and nonpresbyopic groups to reduce their visual fatigue due to visual display terminal tasks.

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Effects of Display Curvature and Task Duration on Proofreading Task Performance, Visual Fatigue, Visual Discomfort, and Display Satisfaction

Proceedings of the Human Factors and Ergonomics Society Annual Meeting ◽

10.1177/1541931213601181 ◽

2016 ◽

Vol 60 (1) ◽

pp. 790-794 ◽

Cited By ~ 4

Author(s):

Sungryul Park ◽

Jihhyeon Yi ◽

Donghee Choi ◽

Songil Lee ◽

Gyouhyung Kyung ◽

...

Keyword(s):

Error Rate ◽

Polynomial Regression ◽

Viewing Distance ◽

Visual Fatigue ◽

Visual Discomfort ◽

Task Duration ◽

Two Factors ◽

Task Durations ◽

The Mean ◽

And Task

With more curved display products in the market and more exposure to such products, it is necessary to examine the effects of display curvature and task duration from the ergonomics perspective. The current study examined the effects of these two factors on visual performance, visual fatigue, visual discomfort, and display satisfaction during proofreading tasks. We incorporated five display curvatures (600R, 1140R, 2000R, 4000R, and flat) and five task durations (0, 15, 30, 45, and 60 min). Each of 50 individuals completed a 1-hr proofreading task at one of five display curvature conditions. The horizontal viewing distance was fixed at 600mm. Proofreading performance (speed and error rate), subjective visual fatigue [on ECQ (Eye Complaint Questionnaire)], physiological visual fatigue [CFF (Critical Fusion Frequency), blink duration, and blink frequency], visual discomfort (on VAS), and display satisfaction (on VAS) were measured. The highest mean proofreading speed was at 600R. The mean proofreading speed and error rate increased by 15.5% and 22.3%, respectively, over the 1-h task. The mean ECQ score and visual discomfort increased by 188.6% and 107.2% during 45 and 60 min of the task, respectively. The mean CFF and display satisfaction decreased by 0.49Hz and 11.2% during 15 and 15-45 min of the task. A polynomial regression model for subjective visual fatigue was developed (adjusted R2 = 0.6). These findings can be used when determining ergonomic display curvatures and predicting visual fatigue.

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Effects of display curvature, display zone, and task duration on legibility and visual fatigue during visual search task

Applied Ergonomics ◽

10.1016/j.apergo.2016.11.012 ◽

2017 ◽

Vol 60 ◽

pp. 183-193 ◽

Cited By ~ 14

Author(s):

Sungryul Park ◽

Donghee Choi ◽

Jihhyeon Yi ◽

Songil Lee ◽

Ja Eun Lee ◽

...

Keyword(s):

Visual Search ◽

Search Task ◽

Visual Search Task ◽

Visual Fatigue ◽

Task Duration ◽

And Task

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A Study of the Effect of Varying Visual Occlusion and Task Duration Conditions on Driver Behavior and Performance while Using a Secondary Task Human-Machine Interface

10.4271/2003-01-0128 ◽

2003 ◽

Cited By ~ 5

Author(s):

David H. Weir ◽

Dean P. Chiang ◽

Aaron M. Brooks

Keyword(s):

Secondary Task ◽

Driver Behavior ◽

Human Machine Interface ◽

Task Duration ◽

Visual Occlusion ◽

Machine Interface ◽

And Performance ◽

And Task

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Effects of Sensory Modality and Task Duration on Performance, Workload, and Stress in Sustained Attention

Human Factors The Journal of the Human Factors and Ergonomics Society ◽

10.1518/hfes.46.2.219.37334 ◽

2004 ◽

Vol 46 (2) ◽

pp. 219-233 ◽

Cited By ~ 102

Author(s):

James L. Szalma ◽

Joel S. Warm ◽

Gerald Matthews ◽

William N. Dember ◽

Ernest M. Weiler ◽

...

Keyword(s):

Sustained Attention ◽

Sensory Modality ◽

Task Duration ◽

And Task

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It’s about Time: Effects of Physical Exertion on Duration Estimates

Journal of Functional Morphology and Kinesiology ◽

10.3390/jfmk4010006 ◽

2019 ◽

Vol 4 (1) ◽

pp. 6

Author(s):

Britton W. Brewer ◽

Lawrence O. Schwartz ◽

Allen E. Cornelius ◽

Judy L. Van Raalte ◽

Edmundo L. Urbina ◽

...

Keyword(s):

Physical Activity ◽

High Intensity ◽

Perceived Exertion ◽

Physical Exertion ◽

Fundamental Aspect ◽

Time Effects ◽

Task Duration ◽

Low Intensity ◽

D Values ◽

And Task

Background: Task duration is a fundamental aspect of exercise, but little is known about how completed bouts of physical activity are perceived. Consequently, the purpose of the five experiments conducted for this investigation was to examine the effects of engaging in physical tasks on retrospective duration estimates with college student participants. Methods: Across the five experiments, participants were 113 college students (82 women, 31 men). In Experiments 1 and 2, participants provided duration estimates of a period spent engaging in physical activity or rest. In Experiments 3, 4, and 5, participants provided duration estimates of periods spent engaged in physical tasks of high intensity and low intensity. Results: In Experiments 1, 2, and 3, participants engaged in physical activity tended to perceive durations as shorter than participants at rest. When completing less familiar tasks (Experiments 4 and 5), however, participants recalled a high intensity bout of physical activity as lasting longer than a low intensity bout of physical activity of comparable duration. Cohen’s d values for physical activity effects on duration estimates ranged from 0.40 to 1.60. Conclusion: The findings, which partially support a contextual-change interpretation, suggest that factors, such as perceived exertion and task familiarity, affect retrospective duration estimates.

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Examining internet banking user’s continuance intention through the lens of technology continuance theory and task technology fit model

Digital Policy Regulation and Governance ◽

10.1108/dprg-11-2020-0168 ◽

2021 ◽

Vol ahead-of-print (ahead-of-print) ◽

Author(s):

Samar Rahi ◽

Mazuri Abd Ghani

Keyword(s):

User Satisfaction ◽

Internet Banking ◽

Perceived Usefulness ◽

Matrix Analysis ◽

Research Model ◽

Continuance Intention ◽

Content Type ◽

Task Technology Fit ◽

And Task ◽

Expectation Confirmation

Purpose The long-term success of internet banking (IB) services is connected with continuous use. Therefore, examining factors which influence IB user continuance intention is important. Grounded in technology continuance theory, bank transparency and task technology fit (TTF) model, the purpose of this study is to develop a unified technology continuance model to investigate IB user continuance intention. Design/methodology/approach The research model was empirically tested with 348 responses. Respondents included in this study had prior experience with IB services. For hypotheses testing, the structural equation modelling approach was used. Findings Findings indicate that the research model has substantial power in explaining IB user continuance intention. Importance performance matrix analysis revealed that bank transparency had the highest importance in determining IB user continuance intention. Therefore, factors like user satisfaction and perceived usefulness have shown a medium level of importance in determining IB user continuance intention. Satisfaction is influenced by perceived usefulness and confirmation and established a significant impact on IB user continuance intention. Practical implications The findings of this research are useful for bank managers and policymakers to develop and design IB services according to user’s expectations. Results demonstrate that expectation confirmation and perceived usefulness are antecedents of IB user satisfaction and IB user continuance intention. In addition to that bank, transparency has shown a significant effect on user expectation and IB user continuance intention. These findings established that accuracy in sharing bank information and clarity in transaction charges encourage the user to continue the use of IB services. Originality/value The current study develops a unified technology continuance model based on the TTF model and technology continuance theory and investigates IB user continuance intention. Moreover, bank transparency is added in the technology continuance model and established a significant impact towards user expectation confirmation and continuance intention. These findings contribute to the limited body of research in the context of IB user continuance intention and enrich information system literature.

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