Abstract:
OBJECTIVE:We describe a networked, two-user virtual reality (VR) power wheelchair (PWC) simulator system in which an actor (client) and an observer (clinician) meet. We then present a study with 15 observers (expert clinicians) evaluating the effect of three principal forms of viewpoint control (egocentric-egomotion, egocentric-tethered, and client-centric) on the observer's assessment of driving tasks in a virtual environment (VE). BACKGROUND:VR allows for the simulation and assessment of real-world tasks in a controlled, safe, and repeatable environment. Observing users' movement behavior in such a VE requires appropriate viewpoint control for the observer. The VR viewpoint user interface should allow an observer to make judgments equivalent or even superior to real-world situations. METHOD:A purpose-built VR PWC simulator was developed. In a series of PWC driving tasks, we measured the perceived ease of use and sense of presence of the observers and compared the virtual assessment with real-world "gold standard" scores, including confidence levels in judgments. RESULTS:Findings suggest that with more immersive techniques, such as egomotion and tethered egocentric viewpoints, judgments are both more accurate and more confident. The ability to walk and/or orbit around the view significantly affected the observers' sense of presence. CONCLUSION:Incorporating the observer into the VE, through egomotion, is an effective method for assessing users' behavior in VR with implications for the transferability of virtual experiences to the real world. APPLICATION:Our application domain serves as a representative example for tasks where the movement of users through a VE needs to be evaluated.
journal_name
Hum Factorsjournal_title
Human factorsauthors
Alshaer A,O'Hare D,Archambault P,Shirley M,Regenbrecht Hdoi
10.1177/0018720819853682subject
Has Abstractpub_date
2020-06-01 00:00:00pages
656-670issue
4eissn
0018-7208issn
1547-8181journal_volume
62pub_type
杂志文章相关文献
HUMAN FACTORS文献大全abstract::Objective The aim of this study is to develop a reliable and valid Motorcycle Seating Comfort Questionnaire (MSCQ). Background Motorcycle seat development is an iterative process based on subjective evaluations; however, there are no established subjective tools for evaluation of seating comfort. Research also suggest...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720817735929
更新日期:2017-12-01 00:00:00
abstract::This research examines how people make movements with pointing devices during human-computer interaction. It specifically concerns the perceptual-motor processes that mediate the speed and accuracy of cursor positioning with electromechanical mice. In three experiments we investigated the spatial and temporal characte...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/001872089303500304
更新日期:1993-09-01 00:00:00
abstract:OBJECTIVE:We investigated the effectiveness of a theoretically motivated intervention at reducing procedural errors in train yard operations, where making these errors could be costly or life-threatening. BACKGROUND:A widespread and persistent memory error that people commit on a daily basis is the postcompletion erro...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720815584232
更新日期:2015-09-01 00:00:00
abstract::The relative contribution of number of fixations and fixation duration to reaction time in visual search was investigated. Ten participants (age 20-24 years) took part in each of two experiments. In Experiment 1, the experimental factors were display type (icon and file name), organization (arrangements with and witho...
journal_title:Human factors
pub_type: 杂志文章,随机对照试验
doi:10.1518/001872005774860032
更新日期:2005-10-01 00:00:00
abstract:OBJECTIVE:In this study, we evaluated the effects of key spacing on a conventional computer keyboard on typing speed, percentage error, usability, and forearm muscle activity and wrist posture. BACKGROUND:International standards that specify the spacing between keys on a keyboard have been guided primarily by design c...
journal_title:Human factors
pub_type: 杂志文章,随机对照试验
doi:10.1177/0018720812465005
更新日期:2013-06-01 00:00:00
abstract:OBJECTIVE:This study investigated whether a stressful military training program, the 9- to 10-week U.S. Army basic combat training (BCT) course, alters the cognitive performance and mood of healthy young adult females. BACKGROUND:Structured training programs including adolescent boot camps, sports training camps, lear...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720813519472
更新日期:2014-09-01 00:00:00
abstract::Ecological interface design (EID) is proving to be a promising approach to the design of interfaces for complex dynamic systems. Although the principles of EID and examples of its effective use are widely available, few readily available examples exist of how the individual displays that constitute an ecological inter...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/0018720024497952
更新日期:2002-07-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to examine the logic behind the knowledge of low-back problem causal pathways. BACKGROUND:Low-back pain and low-back disorders (LBDs) continue to represent the major musculoskeletal risk problem in the workplace,with the prevalence and costs of such disorders increasing over time. I...
journal_title:Human factors
pub_type:
doi:10.1177/0018720812452129
更新日期:2012-12-01 00:00:00
abstract:OBJECTIVE:The effects of handle friction and torque direction on muscle activity and torque are empirically investigated using cylindrical handles. BACKGROUND:A torque biomechanical model that considers contact force, friction, and torque direction was evaluated using different friction handles. METHODS:Twelve adults...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872008X250610
更新日期:2008-02-01 00:00:00
abstract:OBJECTIVE:The present study examined the effects of age (20s to 70s), gender (male and female), and hand (dominant and nondominant) on force control capabilities (FCCs) in four force control phases (initiation, development, maintenance, and termination). BACKGROUND:Normative data of FCCs by force control phase are nee...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720815599284
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVE:This research aimed to identify the most frequently occurring human factors contributing to maintenance-related failures within a petroleum industry organization. Commonality between failures will assist in understanding reliability in maintenance processes, thereby preventing accidents in high-hazard domains...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720813491424
更新日期:2014-03-01 00:00:00
abstract::Most commercial footwear is designed and manufactured on a curved last, although the amount of curvature of the last and the turning point of the last centerline have not been formally determined. In this study, we used principal component analysis to determine the foot axis so that lasts that match feet can be produc...
journal_title:Human factors
pub_type: 临床试验,杂志文章
doi:10.1518/001872099779656761
更新日期:1999-12-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to assess the effects of (a) auto-injector form factor on maximum applied force capability and (b) auto-injector design and instructions on force production and orientation. BACKGROUND:Effective delivery of epinephrine through an auto-injector is the result of a multitude of design ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720816651536
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVE:We show that psychophysiologically driven real-time adaptive aiding significantly enhances performance in a complex aviation task. A further goal was to assess the importance of individual operator capabilities when providing adaptive aiding. BACKGROUND:Psychophysiological measures are useful for monitoring ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872007X249875
更新日期:2007-12-01 00:00:00
abstract:OBJECTIVE:We seek to develop a new approach for analyzing the physical demands of highly variable lifting tasks through an adaptation of the Revised NIOSH (National Institute for Occupational Safety and Health) Lifting Equation (RNLE) into a Variable Lifting Index (VLI). BACKGROUND:There are many jobs that contain ind...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720815612256
更新日期:2016-08-01 00:00:00
abstract:OBJECTIVE:This study examined the effect of three types of brief training on the use of automatic external defibrillators (AEDs) by 43 lay users. BACKGROUND:Because AEDs were recently approved for home use, brief training for nonprofessional users needs investigation. METHOD:During training, the exposure training gro...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872008X250746
更新日期:2008-04-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to examine individual markers of resilience and obtain quantitative insights into the understanding and the implications of variation and expertise levels in train traffic operators' goals and strategic mental models and their impact on performance. BACKGROUND:The Dutch railways are...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720815622357
更新日期:2016-02-01 00:00:00
abstract:OBJECTIVE:An experiment studied the frequency and correlates of driver mind wandering. BACKGROUND:Driver mind wandering is associated with risk for crash involvement. The present experiment examined the performance and attentional changes by which this effect might occur. METHOD:Participants performed a car-following...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720810391530
更新日期:2011-02-01 00:00:00
abstract::We examined the influence of backrest inclination and vergence demand on the posture and gaze angle that workers adopt to view visual targets placed in different vertical locations. In the study, 12 participants viewed a small video monitor placed in 7 locations around a 0.65-m radius arc (from 65 degrees below to 30 ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872000779656598
更新日期:2000-04-01 00:00:00
abstract:OBJECTIVE:This novel preliminary study sought to capture dynamic changes in heart rate variability (HRV) as a proxy for cognitive workload among perfusionists while operating the cardiopulmonary bypass (CPB) pump during real-life cardiac surgery. BACKGROUND:Estimations of operators' cognitive workload states in natura...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720820976297
更新日期:2020-12-16 00:00:00
abstract:OBJECTIVE:This study aims to quantify the impact of olfactory stimulation and takeover modality on the performance of takeovers in conditionally automated driving. BACKGROUND:Takeover requests are important for the safety of automated vehicles. The reaction time and subsequent performance of drivers in the takeover pr...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720819893137
更新日期:2020-01-30 00:00:00
abstract:OBJECTIVE:The aim of this study was to investigate steering control in a low-cost driving simulator with and without a virtual vehicle cab. BACKGROUND:In low-cost simulators, the lack of a vehicle cab denies driver access to vehicle width, which could affect steering control, insofar as locomotor adjustments are known...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720818769253
更新日期:2018-08-01 00:00:00
abstract::This study reexamined the additivity of maximum isometric teamwork lifting strength using experienced and height-matched young male participants. The maximum isometric lifting strength was measured for four exertion heights (45, 75, 105, and 140 cm) and four lifting styles (one-, two, three-, and four-person exertions...
journal_title:Human factors
pub_type: 临床试验,杂志文章
doi:10.1518/hfes.46.4.686.56812
更新日期:2004-01-01 00:00:00
abstract:OBJECTIVE:I evaluate the contribution of a pioneering Human Factors special issue on human factors in industrial systems. BACKGROUND:Papers on the content of the journal's first 10 years showed that industrial human factors/ergonomics (HF/E) in 1969 was quite a rarity in the journal and the society. METHOD:The 12 pap...
journal_title:Human factors
pub_type: 历史文章,杂志文章
doi:10.1518/001872008X312189
更新日期:2008-06-01 00:00:00
abstract::This study constructively extends Arthur et al. (2001) by assessing the convergence of self-report and archival motor vehicle crash involvement and moving violations data in a 2-year longitudinal follow-up. The relationships among these criteria, conscientiousness, and driving speed were also assessed using both predi...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/0018720054679416
更新日期:2005-07-01 00:00:00
abstract:OBJECTIVE:To study the influence of 10 min of cyclic twisting motion on abdominal and back muscle activities. BACKGROUND:Repetitive (cyclic) occupational activity was identified by many epidemiological reports to be a risk factor for the development of work-related musculoskeletal disorders. Biomechanical and physiolo...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872007X230190
更新日期:2007-10-01 00:00:00
abstract::The functional state of the human operator is critical to optimal system performance. Degraded states of operator functioning can lead to errors and overall suboptimal system performance. Accurate assessment of operator functional state is crucial to the successful implementation of an adaptive aiding system. One meth...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/hfes.45.4.635.27088
更新日期:2003-01-01 00:00:00
abstract::Office computer users frequently need to search long lists of options for a particular target. Highlighting a subset of the options can shorten the average display search time. The goal of the current research was to identify the subset of options to highlight that minimizes users' average search time for any given di...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/001872088903100206
更新日期:1989-04-01 00:00:00
abstract:OBJECTIVE:A prototype ecological interface for computer network defense (CND) was developed. BACKGROUND:Concerns about CND run high. Although there is a vast literature on CND, there is some indication that this research is not being translated into operational contexts. Part of the reason may be that CND has historic...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720818769233
更新日期:2018-08-01 00:00:00
abstract:OBJECTIVE:We observe the driving performance effects of gesture-based interaction (GBI) versus touch-based interaction (TBI) for in-vehicle information systems (IVISs). BACKGROUND:As a contributing factor to a number of traffic accidents, driver distraction is a significant problem for traffic safety. More specificall...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720820943284
更新日期:2020-08-14 00:00:00