ErgonomicsPub Date : 2024-11-13DOI: 10.1080/00140139.2024.2427859
Mica R Endsley, Jordan Dixon, Tristan Endsley, David Jamrog, Laura Smith-Velazquez, Avi Pfeffer
{"title":"Divergence in situation awareness and workload.","authors":"Mica R Endsley, Jordan Dixon, Tristan Endsley, David Jamrog, Laura Smith-Velazquez, Avi Pfeffer","doi":"10.1080/00140139.2024.2427859","DOIUrl":"https://doi.org/10.1080/00140139.2024.2427859","url":null,"abstract":"<p><p>Situation awareness (SA) and workload have both received considerable attention over the past several decades. Little research has investigated the relationship between these two constructs however. The present study examines the relationship between workload and SA in a task involving operation of unmanned vehicles performing an inspection task. Overall, an inverse correlation between SA and workload was found, with SA decreasing by approximately 20% as workload increased. Unexpectedly, considerable differences in this relationship across individuals were found, however, with 50% of participants showing a correlation between SA and only one workload measure (subjective or secondary task) and 30% showing no correlation between SA and workload on either measure. Reasons for dissociation within different measures of workload and SA are discussed, as well as potential reasons for individual differences leading to dissociations across these two constructs.</p>","PeriodicalId":50503,"journal":{"name":"Ergonomics","volume":" ","pages":"1-17"},"PeriodicalIF":2.0,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142631862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ErgonomicsPub Date : 2024-11-12DOI: 10.1080/00140139.2024.2427862
Mohammadamin Sanaei, Stephen B Gilbert, Arthur J Perron, Michael C Dorneich, Jonathan W Kelly
{"title":"An examination of scene complexity's role in cybersickness.","authors":"Mohammadamin Sanaei, Stephen B Gilbert, Arthur J Perron, Michael C Dorneich, Jonathan W Kelly","doi":"10.1080/00140139.2024.2427862","DOIUrl":"https://doi.org/10.1080/00140139.2024.2427862","url":null,"abstract":"<p><p>This study explored the effects of scene complexity factor on cybersickness. In this between-subjects experiment, 44 participants played the Pendulum Chair VR game, half with a simple scene and half with a complex scene. The complex scene featured higher optic flow (lower-level perceptual factor) and higher familiarity (higher level factor). Dependent variables were cybersickness and task performance. Results were unexpected in that cybersickness did not differ significantly between the simple and complex scenes. These results suggest that the impact of optic flow and familiarity on cybersickness may be affected by each other or other factors, making them unreliable predictors of cybersickness if considered alone. Both lower level and higher-level factors would benefit from further research to deduce the conditions under which they affect cybersickness. VR designers could consider that optic flow and familiarity alone are not reliable factors when predicting the cybersickness-inducing effects of a new environment.</p>","PeriodicalId":50503,"journal":{"name":"Ergonomics","volume":" ","pages":"1-12"},"PeriodicalIF":2.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142631860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ErgonomicsPub Date : 2024-11-08DOI: 10.1080/00140139.2024.2425953
Gerald Matthews, Ryon Cumings, Erika P De Los Santos, Irene Y Feng, Salim A Mouloua
{"title":"A new era for stress research: supporting user performance and experience in the digital age.","authors":"Gerald Matthews, Ryon Cumings, Erika P De Los Santos, Irene Y Feng, Salim A Mouloua","doi":"10.1080/00140139.2024.2425953","DOIUrl":"https://doi.org/10.1080/00140139.2024.2425953","url":null,"abstract":"<p><p>Stress is both a driver of objective performance impairments and a source of negative user experience of technology. This review addresses future directions for research on stress and ergonomics in the digital age. The review is structured around three levels of analysis. At the individual user level, stress is elicited by novel technologies and tasks including interaction with AI and robots, working in Virtual Reality, and operating autonomous vehicles. At the organisational level, novel, potentially stressful challenges include maintaining cybersecurity, surveillance and monitoring of employees supported by technology, and addressing bias and discrimination in the workplace. At the sociocultural level, technology, values and norms are evolving symbiotically, raising novel demands illustrated with respect to interactions with social media and new ethical challenges. We also briefly review the promise of neuroergonomics and emotional design to support stress mitigation. We conclude with seven high-level principles that may guide future work.</p>","PeriodicalId":50503,"journal":{"name":"Ergonomics","volume":" ","pages":"1-34"},"PeriodicalIF":2.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142631858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ErgonomicsPub Date : 2024-11-01Epub Date: 2024-05-10DOI: 10.1080/00140139.2024.2349748
Cor-Jacques Kat, Roland Peter Gräbe, Paul Jacobus van Staden, Tanita Botha, Pieter Schalk Els
{"title":"Difference thresholds for primary and secondary ride of a vehicle on a 4-poster test rig.","authors":"Cor-Jacques Kat, Roland Peter Gräbe, Paul Jacobus van Staden, Tanita Botha, Pieter Schalk Els","doi":"10.1080/00140139.2024.2349748","DOIUrl":"10.1080/00140139.2024.2349748","url":null,"abstract":"<p><p>Not only is it important to know how large the overall change in vibration should be for occupants to perceive an improvement in comfort, but also how large this change should be in specific frequency bands. Relative difference thresholds (RDT) of primary (0.5-4 Hz) and secondary (9-80 Hz) ride are estimated for 14 automotive engineers seated in a vehicle on a 4-poster test rig over two roads. Resulting stimuli differed in magnitude and spectral shape. The median RDTs estimated for primary and secondary ride were 16.68% and 13.82% on the smooth road, and 9.50% and 24.67% over the rough road. Statistically significant differences were found in the medians of the RDTs between (1) primary and secondary ride on the two roads and (2) the two roads for changes in the primary and secondary ride, suggesting that Weber's law does not hold.</p>","PeriodicalId":50503,"journal":{"name":"Ergonomics","volume":" ","pages":"1702-1714"},"PeriodicalIF":2.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140899208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ErgonomicsPub Date : 2024-11-01Epub Date: 2024-05-22DOI: 10.1080/00140139.2024.2347487
Daniela Colombini, Enrico Occhipinti, Marco Tasso, Matteo Candoli
{"title":"The TACOs (time-based assessment computerized strategy) approach to evaluating occupational working postures.","authors":"Daniela Colombini, Enrico Occhipinti, Marco Tasso, Matteo Candoli","doi":"10.1080/00140139.2024.2347487","DOIUrl":"10.1080/00140139.2024.2347487","url":null,"abstract":"<p><p>Many investigations of biomechanical overload concentrate on upper limbs and manual handling: certain jobs require an evaluation on spinal and lower limb postures. While existing methodologies adequately describe postures, they often poorly consider the organisation. This shortcoming prompted the development of TACOs for spinal and lower limb postures, using organisational factors to adjust the risk indexes. The TACOs is set out in steps: task identification, posture assessment, duration, and a final evaluation also for complex cycles. Given the complexity, tools have been devised, free downloadable, to facilitate evaluation. Studies on the TACOs reliability indicate excellent intra-observer and moderate interobserver agreement. TACOs, defining the task as a measurement unit, offers the advantage of assessing postures more easily and, considering duration, provides precise evaluation of the final risk. While the method does not demonstrate predictive validity regarding related diseases, it nonetheless enables the classification of exposure levels, even in complex multitask scenarios.</p>","PeriodicalId":50503,"journal":{"name":"Ergonomics","volume":" ","pages":"1665-1682"},"PeriodicalIF":2.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141077239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ErgonomicsPub Date : 2024-11-01Epub Date: 2024-05-10DOI: 10.1080/00140139.2024.2342436
Colleen E Patton, Christopher D Wickens
{"title":"The relationship of trust and dependence.","authors":"Colleen E Patton, Christopher D Wickens","doi":"10.1080/00140139.2024.2342436","DOIUrl":"10.1080/00140139.2024.2342436","url":null,"abstract":"<p><p>The concepts of automation trust and dependence have often been viewed as closely related and on occasion, have been conflated in the research community. Yet, trust is a cognitive attitude and dependence is a behavioural measure, so it is unsurprising that different factors can affect the two. Here, we review the literature on the correlation between trust and dependence. On average, this correlation across people was quite low, suggesting that people who are more trusting of automation do not necessarily depend upon it more. Separately, we examined experiments that explicitly manipulated the reliability of automation, finding that higher automation reliability increased trust ratings twice as fast as dependence behaviours. This review provides novel quantitative evidence that the two constructs are not strongly correlated. Implications of this work, including potential moderating variables, contexts where trust is still relevant, and considerations of trust measurement, are discussed.</p>","PeriodicalId":50503,"journal":{"name":"Ergonomics","volume":" ","pages":"1535-1552"},"PeriodicalIF":2.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140899372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Relationship between physical fatigue and mental fatigue based on multimodal measurement under different load levels.","authors":"Haizhe Jin, Meng Xiao, Li Liu, Shuang Kan, Yongyan Fu, Dawei Zhang","doi":"10.1080/00140139.2024.2364667","DOIUrl":"10.1080/00140139.2024.2364667","url":null,"abstract":"<p><p>Based on multimodal measurement methods of NASA task load index (NASA-TLX), task performance, surface electromyography (sEMG), heart rate (HR), and functional near-infrared spectroscopy (fNIRS), this study conducted experimental measurements and analyses under 16 different load levels of physical fatigue and mental fatigue combination conditions. This study observed the interaction between physical fatigue and mental fatigue at different levels, and at the subjective level, the effect of physical fatigue on mental fatigue was greater than that of mental fatigue on physical fatigue. Secondly, the results of fNIRS analysis showed that the premotor cortex is affected by physical fatigue, and the dorsolateral prefrontal cortex is affected by mental fatigue. Finally, this study constructed a fatigue classification model with an accuracy of 95.3%, which takes multimodal physiological data as input and 16 fatigue states as output. The research results will provide a basis for fatigue analysis, evaluation, and improvement in complex working situations.</p>","PeriodicalId":50503,"journal":{"name":"Ergonomics","volume":" ","pages":"1748-1763"},"PeriodicalIF":2.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141443621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ErgonomicsPub Date : 2024-11-01Epub Date: 2024-05-23DOI: 10.1080/00140139.2024.2348672
Shilong Liao, Long Lin, Hairun Pei, Qin Chen
{"title":"How does the status of errant robot affect our desire for contact? - The moderating effect of team interdependence.","authors":"Shilong Liao, Long Lin, Hairun Pei, Qin Chen","doi":"10.1080/00140139.2024.2348672","DOIUrl":"10.1080/00140139.2024.2348672","url":null,"abstract":"<p><p>Technological breakthroughs such as artificial intelligence and sensors make human-robot collaboration a reality. Robots with highly reliable, specialised skills gain informal status in collaborative teams, but factors such as unstructured work environments and task requirements make robot error inevitable. So how do status differences of errant robots affect the desire for contact, and do team characteristics also have an impact? This paper describes an intergroup experiment using the Experimental Vignette Method (EVM), based on the Expectation Violation Theory, 214 subjects were invited to test the following hypotheses: (1) Errant robot status has an influence on employees' desire for contact and support for robotics research through negative emotions; (2) Team interdependence is a boundary condition for the effect of errant robot status on negative emotions. This paper contributes to the literature on employee reactions to robot errors in human-robot collaboration and provides suggestions for robot status design.</p>","PeriodicalId":50503,"journal":{"name":"Ergonomics","volume":" ","pages":"1683-1701"},"PeriodicalIF":2.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141089155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ErgonomicsPub Date : 2024-11-01Epub Date: 2024-05-14DOI: 10.1080/00140139.2024.2349757
Suman Kalyan Sardar, Seul Chan Lee
{"title":"An ergonomic evaluation using a deep learning approach for assessing postural risks in a virtual reality-based smart manufacturing context.","authors":"Suman Kalyan Sardar, Seul Chan Lee","doi":"10.1080/00140139.2024.2349757","DOIUrl":"10.1080/00140139.2024.2349757","url":null,"abstract":"<p><p>This study proposes an integrated ergonomic evaluation designed to identify unsafe postures, whereby postural risks during industrial work are assessed in the context of virtual reality-based smart manufacturing. Unsafe postures were recognised by identifying the displacements of the centre of mass (COM) of body keypoints using a computer vision-based deep learning (DL) convolutional neural network approach. The risk levels for the identified unsafe postures were calculated using ergonomic risk assessment tools rapid upper limb assessment and rapid whole-body assessment. An analysis of variance was conducted to determine significant differences between the vertical and horizontal directions of postural movements associated with the most unsafe postures. The findings assess the ergonomic risk levels and identify the most unsafe postures during industrial work in smart manufacturing using DL method. The identified postural risks can help industry managers and researchers acquire a better understanding of unsafe postures.</p>","PeriodicalId":50503,"journal":{"name":"Ergonomics","volume":" ","pages":"1715-1728"},"PeriodicalIF":2.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140917399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ErgonomicsPub Date : 2024-11-01Epub Date: 2024-05-10DOI: 10.1080/00140139.2024.2349962
Giorgia Coraggio, Mattia Cera, Marco Cirelli, Pier Paolo Valentini
{"title":"Review and comparison of linear algorithms to quantify muscle fatigue based on sEMG signals.","authors":"Giorgia Coraggio, Mattia Cera, Marco Cirelli, Pier Paolo Valentini","doi":"10.1080/00140139.2024.2349962","DOIUrl":"10.1080/00140139.2024.2349962","url":null,"abstract":"<p><p>Surface electromyography techniques are widely used in field of motion analysis and ergonomics combining precise muscular activation assessment with low-invasiveness and wearability. The aim of this investigation is to identify the myoelectrical manifestations of fatigue and to compare the effectiveness of sEMG-based quantitative indices for fatigue assessment. The investigated indexes are the ARV and RMS signal amplitudes, the mean frequency, the median frequency, the Dimitrov index, the instantaneous mean frequency and Wavelet distribution-based <i>WIRE</i>51 index. Two different protocols were developed, and the activity of the lateral deltoid and middle trapezius muscles was recorded. The WIRE51 index is found to have the highest sensitivity in the detection of the difference between the repetitions of each exercise for both protocols. Due to the lack of a unified standard for the performance comparison of fatigue indices, a correlation analysis was carried out between the result provided by the indices and the subjective fatigue perception employing the RPE scale.</p>","PeriodicalId":50503,"journal":{"name":"Ergonomics","volume":" ","pages":"1729-1747"},"PeriodicalIF":2.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140909542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}