Time pressure and mental workload effects on perceived workload and key strike force during typing

2005 ◽  
Author(s):  
Laura E. Hughes ◽  
Kari Babski-Reeves
Keyword(s):  
Time Pressure ◽  
Mental Workload ◽  
Perceived Workload

Time Pressure and Mental Workload Effects on Perceived Workload and Key Strike Force during Typing

2005 ◽  
Vol 49 (14) ◽  
pp. 1390-1394 ◽  
Author(s):  
Laura E. Hughes ◽  
Kari Babski-Reeves
Keyword(s):  
Psychosocial Factors ◽  
Time Pressure ◽  
Mental Workload ◽  
Physical Factors ◽  
Work Related ◽  
Work Tasks ◽  
Physical Risk ◽  
Increase Risk ◽  
Physical Risk Factors ◽  
Perceived Workload

Although physical factors are accepted as risks in the development of work related musculoskeletal disorders (WMSDs), psychosocial factors may explain some of the remaining differences in susceptibility to WMSDs. The following study examined the effects of two psychosocial factors, mental workload and time pressure, on typing performance, perceived workload, and key strike force while typing. The majority of the key strike force measures increased with increases in time pressure and mental workload. Perceived overall workload (as measured using SWAT) increased with mental workload and time pressure, and typing performance decreased. Additionally, gender, locus of control, and perceived stress level did not influence outcomes. Physical risk factors may be mediated by psychosocial factors to increase risk for WMSD development in the upper extremities. Therefore, both physical and psychosocial aspects of work environments should be considered when designing jobs and work tasks to prevent injuries and improve productivity.

Introducing Multimodal Sliding Index: Qualitative Feedback, Perceived Workload, and Driving Performance with an Auditory Enhanced Menu Navigation Method

2017 ◽  
Author(s):  
Ruta R. Sardesai ◽  
Thomas M. Gable ◽  
Bruce N. Walker
Keyword(s):  
Mobile Device ◽  
Mental Workload ◽  
Driving Performance ◽  
Audio Cues ◽  
Qualitative Feedback ◽  
Speed Up ◽  
Driving Task ◽  
Perceived Workload ◽  
New Type ◽  
Navigation Method

Using auditory menus on a mobile device has been studied in depth with standard flicking, as well as wheeling and tapping interactions. Here, we introduce and evaluate a new type of interaction with auditory menus, intended to speed up movement through a list. This multimodal “sliding index” was compared to use of the standard flicking interaction on a phone, while the user was also engaged in a driving task. The sliding index was found to require less mental workload than flicking. What’s more, the way participants used the sliding index technique modulated their preferences, including their reactions to the presence of audio cues. Follow-on work should study how sliding index use evolves with practice.

scholarly journals Physiological Evaluation of Mental Workload in Time Pressure

2007 ◽  
Vol 127 (7) ◽  
pp. 1000-1006 ◽  
Author(s):  
Kyu Hioki ◽  
Akio Nozawa ◽  
Tota Mizuno ◽  
Hideto Ide
Keyword(s):  
Time Pressure ◽  
Mental Workload ◽  
Physiological Evaluation

Effect of Audio-Visual Alerts on Situation Awareness and Workload in a Net-Centric Warfare Scenario

2007 ◽  
Vol 51 (18) ◽  
pp. 1205-1209
Author(s):  
Jennifer M. Ross ◽  
John S. Barnett ◽  
Larry L. Meliza
Keyword(s):  
Situation Awareness ◽  
Mental Workload ◽  
Human Operator ◽  
Moderating Effects ◽  
Critical Events ◽  
Perceived Workload ◽  
The Common ◽  
Information Advantage ◽  
Inherent Nature

The goal of net-centric warfare (NCW) is to give soldiers an information advantage that leads to a war-fighting advantage. However, the inherent nature of NCW systems is often quite complex and dynamic, which leads to impaired situation awareness (SA) and heightened levels of mental workload for the human operator. The following study investigated the moderating effects of automated audio-visual alerts on user SA and perceived workload while using a net-centric warfare system. Twenty-six participants observed battlefield scenarios on a simulation of the common NCW system, Force XXI Battle Command Brigade and Below (FBCB2), and were required to pay attention and remember critical events (e.g., the appearance of an enemy unit). The system was presented with or without an automated alerting aid that provided combined auditory and visual alerts when certain critical events occurred (i.e., System to Help Implement and Empower Leader Decisions; SHIELD). Results revealed that contrary to current assumptions the use of an automated alerting aid did not impact user SA; however, perceived workload was significantly lower with the addition of the alerting aid. This work demonstrates that the automated alerts used in this NCW experiment do not affect SA (either positively or negatively) and decreased perceived workload.

scholarly journals Mental Workload of Local vs Remote Operator in Human-Machine Interaction Case Study

2021 ◽  
Author(s):  
Melanie Zimmer ◽  
Ali Al-Yacoub ◽  
Pedro Ferreira ◽  
Ella-Mae Hubbard ◽  
Niels Lohse
Keyword(s):  
Mental Workload ◽  
Manufacturing Sector ◽  
Human Robot Interaction ◽  
Human Machine Interaction ◽  
Task Load ◽  
Full Production ◽  
Interaction Task ◽  
Perceived Workload ◽  
Novel Coronavirus ◽  
Nasa Task Load Index

Since late 2019, a novel Coronavirus disease 2019 (COVID-19) has spread globally. As a result, businesses were forced to send their workforce into remote working, wherever possible. While research in this area has seen an increase in studying and developing technologies that allow and support such remote working style, not every sector is currently prepared for such a transition. Especially the manufacturing sector has faced challenges in this regard. In this paper, the mental workload of two groups of participants is studied during a human-robot interaction task. Participants were asked to bring a robotised cell used in a dispensing task to full production by tuning system parameters. After the experiment, a self-assessment of the participants’ perceived mental workload using the NASA Task Load Index (NASA-TLX) was used. The results show that remote participants tend to have lower perceived workload compared to the local participants.

scholarly journals Mental Workload under Time Pressure can Trigger Frequent Hot Flashes in Menopausal Women

2008 ◽  
Vol 46 (3) ◽  
pp. 261-268 ◽  
Author(s):  
Mi Kyong PARK ◽  
Noriaki SATOH ◽  
Masaharu KUMASHIRO
Keyword(s):  
Time Pressure ◽  
Mental Workload ◽  
Hot Flashes ◽  
Menopausal Women

Effects of Demand Transitions on Vigilance Performance and Perceived Workload

1995 ◽  
Vol 39 (21) ◽  
pp. 1375-1379 ◽  
Author(s):  
Brian W. Moroney ◽  
Joel S. Warm ◽  
William N. Dember
Keyword(s):  
Event Rate ◽  
Mental Workload ◽  
Task Demand ◽  
Experimental Session ◽  
Vigilance Performance ◽  
Mental Demand ◽  
Perceived Workload ◽  
Nasa Tlx ◽  
Low Levels ◽  
Upper Level

This study examined the effects of transitions in task demand on vigilance performance and perceived mental workload. Task demand was manipulated through variations in background event rate–the rate of cascade of neutral events which must be monitored in order to detect critical signals. As is typical in vigilance research, overall performance varied inversely with event rate in all phases of the study. The post-transition performance of observers shifted from a fast-to-slow event rate (high-to-low task demand) remained below that of their continuous slow event rate controls, and was thus unaffected by the shift. In contrast, the post-transition performance of monitors shifted in the opposite direction, slow-to-fast event rate, was affected by the shift. In this case, the performance of the shifted observers fell below that of their continuous fast event rate controls. These results challenge prior findings indicating that psychophysical contrast is the representative outcome of shifts in information-processing demand in vigilance tasks (Krulewitz, Warm, & Wohl, 1975). Consistent with previous findings, workload scores, as indexed by the NASA-TLX, fell at the mid-to-upper level of the scale. Shifted observers who experienced both high and low levels of task demand during the vigil showed differences in composite ratings on the Mental Demand subscale. These results serve to caution that workload measurements obtained through the NASA-TLX at the end of an experimental session containing variations in task demand do not simply reflect an averaging of the observer's demand experiences.

Crash Involvement and Risky Riding Behaviors among Delivery Riders in China: The Role of Working Conditions

2019 ◽  
Vol 2673 (4) ◽  
pp. 1011-1022 ◽  
Author(s):  
Yubing Zheng ◽  
Yang Ma ◽  
Lixin Guo ◽  
Jianchuan Cheng ◽  
Yunlong Zhang
Keyword(s):  
Working Conditions ◽  
Latent Variables ◽  
Time Pressure ◽  
Mental Workload ◽  
Route Planning ◽  
Working Hours ◽  
Probit Model ◽  
Stair Climbing ◽  
Cross Sectional

Delivery riders (usually e-bike riders employed in the delivery industry), an emerging occupation as a result of the booming of online commerce in China, have attracted social controversies for the prevalence of unsafe riding and high rates of crash involvement. Given their ever-increasing number and stressful working conditions, more attention should be paid to safety issues involving delivery riders. To illuminate the role of working conditions in influencing safety-related risks of delivery riders, this cross-sectional study was conducted among 824 delivery riders, who answered a self-administered questionnaire gathering information about their demographics, working conditions, riding behaviors, and crash involvement. A mixed probit model of the number of crashes involving riders that allowed for hierarchical relationships between the latent variables identified (i.e., time pressure, fatigue, risky riding behaviors) was employed to determine the underlying association between factors surveyed. The results portrayed a picture of worrisome working conditions for delivery riders. Respondents reported an average of 9.1 daily working hours with insufficient rest. Frequent stair climbing, route planning, and disputes with customers also added to their physical and mental workload. The tested model indicated that a heavy workload, feelings of fatigue, as well as risk-taking behaviors all exerted direct and significant impacts on the involvement in crashes, and time pressure as well as several work-related traits affected crash involvement indirectly, through influencing riders’ feeling of fatigue and riding behaviors. Findings of this study may provide an empirical basis for road safety interventions for delivery riders in China.

Sign in / Sign up

Export Citation Format

Share Document