The effects of situated visualized telepresence on task performance in gesture-based teleoperation

This paper introduces a method for gesture-based teleoperation where the human operator can virtually exist within the remote environment using mixed reality. The proposed method visually mixes the operator’s body with their perception of the remote environment, so that the operator is virtually present at the remote site. The idea is the that...

Effects of Time Constraints and Search Results Presentation on Web Search

Everybody experiences time constraints in their day­-to­-day lives, possibly influencing our judgment abilities and behavior. In contemporary daily life, search en­gines are regularly consulted to look for information online with searchers commonly experiencing time pressure during the web search process. Therefore, this work investigates how...

Effects of coherent, integrated, and context-dependent adaptable user interfaces on operators’ situation awareness, performance, and workload

Nautical traffic management in The Netherlands is shifting from local traffic control to corridor traffic management. Current traffic management systems do not sufficiently support operators in perceptual and cognitive process to interpret and understand the large amounts of information needed for corridor traffic management. Newly developed...

The Role of Organizational Control Systems in Employees’ Organizational Trust and Performance Outcomes

This study examined how organizational control is related to employees’ organizational trust. We specifically focus on how different forms of control (process, outcome, and normative) relate to employees’ trust in their employing organizations and examine whether such trust in turn relates positively to employee job performance (task...

Development, construct validity and test–retest reliability of a field-based wheelchair mobility performance test for wheelchair basketball

The aim of this study was to develop and describe a wheelchair mobility performance test in wheelchair basketball and to assess its construct validity and reliability. To mimic mobility performance of wheelchair basketball matches in a standardised manner, a test was designed based on observation of wheelchair basketball matches and expert...

Where to improve in human-in-the-loop tele-operated maintenance? A phased task analysis based on video data of maintenance at JET

For the planned teleoperated maintenance of the experimental fusion plant ITER the time performance will be critical. Telemanipulated task execution is however characterised by long execution times compared to similar tasks performed hands-on. There is little quantitative research on task performance of telemanipulated maintenance available...

Relating planner task performance for container terminal operations to multi-tasking skills and personality type

Planning the operations within a container terminal is a complex task. It requires planners to demonstrate adaptive behavior while handling stressful, complex, and unexpected situations in today's dynamic and technology dependent workplace. This paper aims at investigating the role of multi-tasking ability, moderated by an individual's...

Effects of different real-time feedback types on human performance in high-demanding work conditions

Experiencing stress during training is a way to prepare professionals for real-life crises. With the help of feedback tools, professionals can train to recognize and overcome negative effects of stress on task performances. This paper reports two studies that empirically examined the effect of such a feedback system. The system, based on the...

Improving trainees’ performances while under stress using real-time feedback

Professionals working in different domains often experience stressful conditions evoked by disasters or crisis scenarios. Regardless of these conditions, they have to perform at high standards in order to preserve safety for themselves, avoid any casualties, and to resolve the overall situation. Stress, however, negatively affects cognitive...

Changing behavior during teleoperation by tricking the brain?: Exploring a practical application of body illusions

Teleoperation is widely used in human-hostile or otherwise inaccessible environments. However, using teleoperation to perform a task is more difficult than performing the task directly. A main factor for this is limited telepresence due to the absence or distortion of natural sensory feedback. An interesting possibility to increase telepresence...

The Effect of Online Adaptation on Conflicts in Haptic Shared Control for Free-Air Teleoperation Tasks

Haptic shared control provides artificial guiding forces on a control interface that support operators to perform tasks. Research has shown that this can improve task performance and reduce control effort. However conflicts between the human operator and support system are often reported which deteriorate performance and increase control effort....

User experience in public products: The effects of presence of other people

User experience with public products needs special attention considering the specific context. Different from other consumer or personal products that users own, public products do not belong to the user; they are shared with and used in front of other people. Thus, different concerns and problems are incorporated affecting the user experiences....

Haptic shared control improves tele-operated task performance towards performance in direct control

An tele-operation, haptic feedback from the remote environment to the human is often limited, which has been shown to negatively influence the performance and required time of tasks. The conventional research focus is on improving the quality of the haptic feedback (transparency), which may have led to significant improvement, but is still...

Improving the Quality of Haptic Feedback Yields Only Marginal Improvements in Teleoperated Task Performance

In teleoperations, haptic feedback allows the human operator to touch the remote environment. Yet it is only partially understood to what extent the quality of haptic feedback contributes to human-in-the-loop task performance. This paper presents a human factors experiment in which telemanipulated task performance is assessed for three stages of...