ORCID Profile
0000-0001-7960-0364
Current Organisations
University College London
,
University of Western Australia
,
Lingnan University
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Information Systems | Psychology and Cognitive Sciences not elsewhere classified | Computer-Human Interaction
Health and Support Services not elsewhere classified | Expanding Knowledge in Psychology and Cognitive Sciences | Computer Software and Services not elsewhere classified |
Publisher: Elsevier BV
Date: 03-2016
DOI: 10.1016/J.APERGO.2015.10.012
Abstract: Two experiments were conducted to examine whether checking one's own work can be motivated by monetary reward and punishment. Participants were randomly assigned to one of three conditions: a flat-rate payment for completing the task (Control) payment increased for error-free performance (Reward) payment decreased for error performance (Punishment). Experiment 1 (N = 90) was conducted with liberal arts students, using a general data-entry task. Experiment 2 (N = 90) replicated Experiment 1 with clinical students and a safety-critical 'cover story' for the task. In both studies, Reward and Punishment resulted in significantly fewer errors, more frequent and longer checking, than Control. No such differences were obtained between the Reward and Punishment conditions. It is concluded that error consequences in terms of monetary reward and punishment can result in more accurate task performance and more rigorous checking behaviour than errors without consequences. However, whether punishment is more effective than reward, or vice versa, remains inconclusive.
Publisher: Informa UK Limited
Date: 30-06-2022
Publisher: JMIR Publications Inc.
Date: 16-06-2020
DOI: 10.2196/16036
Abstract: Anesthesia information management systems (AIMSs) automatically import real-time vital signs from physiological monitors to anesthetic records, replacing part of anesthetists’ traditional manual record keeping. However, only a handful of studies have examined the effects of AIMSs on anesthetists’ monitoring performance. This study aimed to compare the effects of AIMS use and manual record keeping on anesthetists’ monitoring performance, using a full-scale high-fidelity simulation. This simulation study was a randomized controlled trial with a parallel group design that compared the effects of two record-keeping methods (AIMS vs manual) on anesthetists’ monitoring performance. Twenty anesthetists at a tertiary hospital in Hong Kong were randomly assigned to either the AIMS or manual condition, and they participated in a 45-minute scenario in a high-fidelity simulation environment. Participants took over a case involving general anesthesia for below-knee utation surgery and performed record keeping. The three primary outcomes were participants’ (1) vigilance detection accuracy (%), (2) situation awareness accuracy (%), and (3) subjective mental workload (0-100). With regard to the primary outcomes, there was no significant difference in participants’ vigilance detection accuracy (AIMS, 56.7% vs manual, 56.7% P=.50), and subjective mental workload was significantly lower in the AIMS condition than in the manual condition (AIMS, 34.2 vs manual, 46.7 P=.02). However, the result for situation awareness accuracy was inconclusive as the study did not have enough power to detect a difference between the two conditions. Our findings suggest that it is promising for AIMS use to become a mainstay of anesthesia record keeping. AIMSs are effective in reducing anesthetists’ workload and improving the quality of their anesthetic record keeping, without compromising vigilance.
Publisher: American Psychological Association (APA)
Date: 2008
DOI: 10.1037/A0014397
Abstract: A postcompletion error (PCE) is a specific kind of cognitive slip that involves omitting a final task step after the main goal of the task is accomplished. It is notoriously difficult to provoke (and hence study) slips under experimental conditions. In this paper, the authors present an experimental task paradigm that has been shown to be effective for studying PCEs in routine procedural tasks. Two studies were carried out to examine the effect of interruption position and task structure on the prevalence of PCEs. It was found that significantly more PCEs were obtained when an interruption occurred just before the PC step than when an interruption occurred at any other position in the task. The authors account for this effect in terms of Altmann and Trafton's activation-based goal memory model. The same interruption effect was obtained for some, but not all, other procedural errors the authors discuss the nature of these errors and likely explanations for the differences.
Publisher: SAGE Publications
Date: 09-2018
Publisher: Emerald
Date: 09-03-2015
DOI: 10.1108/JOEPP-01-2015-0002
Abstract: – The recent economic crisis gave rise to job insecurity and had a seemingly greater effect on western than eastern countries. The purpose of this paper is to examine cross-cultural differences of the influence of job insecurity on employees’ wellbeing, innovative work behaviour (IWB) and safety outcomes in the form of attention-related cognitive errors (ARCES) in Germany as compared to mainland China. – S les from both Germany and China rate their job insecurity, work engagement, burnout, IWB and ARCES in a survey. – For both German and Chinese employees there was an indirect relationship between job insecurity and ARCES through burnout. In the German s le, there was an indirect relationship between employees’ job insecurity and IWB through work engagement. In contrast, the Chinese s le only showed the direct relationship between quantitative job insecurity and IWB, but not a mediation effect. – For organizations to be effective and their employees to work safely, it is essential to understand the nature and process of job insecurity in different national contexts. – The present research is unique by relating job insecurity to employee’ innovation on the one hand and safety outcomes on the other. Furthermore, these relationships are examined in the cultural contexts of Germany and China, contributing to the gap of research carried out in eastern contexts.
Publisher: Oxford University Press (OUP)
Date: 09-2010
Publisher: Elsevier BV
Date: 07-2018
DOI: 10.1016/J.APERGO.2018.02.014
Abstract: The aim of the present study was to investigate the effect of error consequence, as reward or punishment, on in iduals' checking behaviour following data entry. This study comprised two eye-tracking experiments that replicate and extend the investigation of Li et al. (2016) into the effect of monetary reward and punishment on data-entry performance. The first experiment adopted the same experimental setup as Li et al. (2016) but additionally used an eye tracker. The experiment validated Li et al. (2016) finding that, when compared to no error consequence, both reward and punishment led to improved data-entry performance in terms of reducing errors, and that no performance difference was found between reward and punishment. The second experiment extended the earlier study by associating error consequence to each in idual trial by providing immediate performance feedback to participants. It was found that gradual increment (i.e. reward feedback) also led to significantly more accurate performance than no error consequence. It is unclear whether gradual increment is more effective than gradual decrement because of the small s le size tested. However, this study reasserts the effectiveness of reward on data-entry performance.
Publisher: ACM
Date: 07-05-2016
Publisher: SAGE Publications
Date: 11-2019
Abstract: Clinicians are not always at their patients’ bedsides and may therefore need ways of remotely monitoring the well-being of multiple patients under their care. We outline the main findings of a research program investigating whether the intermittent presentation of short phrases of time-compressed speech (spearcons) is an effective way of giving mobile clinicians information about their patients without annoying either clinician or patient. We provide a high-level overview of several studies investigating participants’ ability to understand spearcons, both in idually and in sequences representing multiple patients. We then report in more detail a recent small study testing whether participants’ ability to understand spearcons is compromised by different kinds of ongoing tasks. Finally, we outline further issues that should be addressed and further research studies performed before spearcons could be considered a viable tool for patient monitoring.
Publisher: Georg Thieme Verlag KG
Date: 2011
DOI: 10.3414/ME11-02-0003
Abstract: Objective: To examine the problem of studying interruption in healthcare. Methods: Review of the interruption literature from psychology, human-computer interaction experimental studies of electronic prescribing and error behaviour observational studies in emergency and intensive care. Results: Primary task and interruption variables which contribute to the outcomes of an interruption include the type of task (primary and interrupting task) point of interruption duration of interruption similarity of interruptive task to primary task modality of interruption environmental cues and interruption handling strategy. Effects of interruption on task performance can be examined by measuring errors, the time on task, interruption lag and resumption lag. Conclusions: Interruptions are a complex phenomenon where multiple variables including the characteristics of primary tasks, the interruptions themselves, and the environment may influence patient safety and work-flow outcomes. Observational studies present significant challenges for recording many of the process variables that influence the effects of interruptions. Controlled experiments provide an opportunity to examine the specific effects of variables on errors and efficiency. Computational models can be used to identify the situations in which interruptions to clinical tasks could be disruptive and to investigate the aggregate effects of interruptions.
Publisher: SAGE Publications
Date: 09-2016
Abstract: The aim of the current analysis is to complement existing studies of aircraft maintenance incidents by providing finer and more detailed explanations for their causes in terms of task and error types. A total of 109 aircraft maintenance incidents were analyzed with respect to knowledge and concepts from psychology and cognitive engineering. The skill, rule and knowledge-based framework by Rasmussen (1983) was used to identify the main task types involved in the incidents. Error types such as post-completion error, prospective memory failure and data-entry error were used as part of the analysis. System usability and the occurrence of interruptions, distractions and multitasking were also adopted as important factors in the analysis. Results suggest that more than 60% of the incidents involved rule-based performance. Almost 50% of the rule-based incidents can be explained in terms of the errors types and factors identified. This analysis provides a starting point for practitioners to discuss aircraft maintenance incidents using theoretically grounded concepts.
Publisher: Wiley
Date: 12-2009
DOI: 10.1111/J.1365-2753.2009.01350.X
Abstract: Traditional decision research shows that when people are told the probability of a rare event (e.g. the chance of side effects), they generally treat this event as if it were more likely than its objective probability (overweighting). In contrast, recent studies indicate that when outcomes are experienced firsthand, people tend to underweight the probability of rare events. In this paper, we suggest that the distinction between described and experienced information can play a significant role in shared decision making, and can provide a plausible explanation for some discrepancies between the perspectives of doctors and patients. We highlight some of the advantages and disadvantages of experiential and description-based information, and how knowledge of these might be used to improve risk communication.
Publisher: Elsevier BV
Date: 10-2023
Publisher: JMIR Publications Inc.
Date: 12-09-2019
Abstract: nesthesia information management systems (AIMSs) automatically import real-time vital signs from physiological monitors to anesthetic records, replacing part of anesthetists’ traditional manual record keeping. However, only a handful of studies have examined the effects of AIMSs on anesthetists’ monitoring performance. his study aimed to compare the effects of AIMS use and manual record keeping on anesthetists’ monitoring performance, using a full-scale high-fidelity simulation. his simulation study was a randomized controlled trial with a parallel group design that compared the effects of two record-keeping methods (AIMS vs manual) on anesthetists’ monitoring performance. Twenty anesthetists at a tertiary hospital in Hong Kong were randomly assigned to either the AIMS or manual condition, and they participated in a 45-minute scenario in a high-fidelity simulation environment. Participants took over a case involving general anesthesia for below-knee utation surgery and performed record keeping. The three primary outcomes were participants’ (1) vigilance detection accuracy (%), (2) situation awareness accuracy (%), and (3) subjective mental workload (0-100). ith regard to the primary outcomes, there was no significant difference in participants’ vigilance detection accuracy (AIMS, 56.7% vs manual, 56.7% i P /i =.50), and subjective mental workload was significantly lower in the AIMS condition than in the manual condition (AIMS, 34.2 vs manual, 46.7 i P /i =.02). However, the result for situation awareness accuracy was inconclusive as the study did not have enough power to detect a difference between the two conditions. ur findings suggest that it is promising for AIMS use to become a mainstay of anesthesia record keeping. AIMSs are effective in reducing anesthetists’ workload and improving the quality of their anesthetic record keeping, without compromising vigilance.
Publisher: SAGE Publications
Date: 09-2016
Abstract: The recent challenge issued by the HFES President emphasizes the need for members and professionals of the Human Factors and Ergonomics community to remain relevant to society at large in spite of the challenges we face as a professional society (Marras, 2015). One characteristic of our present and future as a society is our existence in a world of increasing globalization. Consequently, it is appropriate that we grow our awareness of the culture of HF/E around the world in order to facilitate increased reception of the services we are able to offer and promote intercultural collaboration. This panel brings professionals from academia and industry around the world to bring their perspectives on unique challenges and approaches to HF/E in an international setting. These global perspectives span industries, countries, and attitudes and behaviors from around the world. The panel will first present their observations on the unique aspects of their cultural experiences and then engage attendees in a discussion with the aim of equipping them to adopt a more effective global mindset towards their HF/E endeavors.
Publisher: SAGE Publications
Date: 27-09-2019
Abstract: The aim was to compare the effectiveness of two auditory displays, implemented with spearcons (time-compressed speech), for monitoring multiple patients. Sequences of sounds can convey information about patients’ vital signs, such as oxygen saturation (SpO 2 ) and heart rate (HR). We tested whether participants could monitor five patients using spearcon-based sound sequences. A 2 × 3 within-subjects design was used. The first factor was interface, with two levels: the ALL interface used spearcons to convey vital signs for all five patients, whereas the ABN (abnormal) interface represented patients who had normal vital signs with a low-pitched single-tone sound and patients who had at least one abnormal vital sign with spearcons. The second factor was the number of patients who had at least one abnormal vital sign: there were one, two, or three such patients in each monitoring sequence. Participants were 40 nonclinicians. Participants identified abnormal patients’ SpO 2 and HR levels and located abnormal patients in the sound sequence more accurately with the ABN interface than the ALL interface. Accuracy declined as the number of abnormal patients increased. Participants associated ABN with easier identification of vital signs, resulting in higher ratings of confidence and pleasantness compared with ALL. Sequences of spearcons may support effective eyes-free monitoring of multiple patients. Sequences of spearcons may be useful in monitoring multiple patients and the underlying design principles may extend to monitoring in other domains such as industrial process control or control of multiple autonomous vehicles.
Publisher: ACM
Date: 18-04-2015
Publisher: MDPI AG
Date: 08-07-2019
Abstract: (1) Background: Work-related stress is a major contributor to human error. One significant workplace stressor is job insecurity, which has been linked to an increased likelihood of experiencing burnout. This, in turn, might affect human error, specifically attention-related cognitive errors (ARCES) and the ability to detect errors. ARCES can be costly for organizations and pose a safety risk. Equally detrimental effects can be caused by failure to detect errors before they can cause harm. (2) Methods: We gathered self-report and behavioral data from 148 employees working in educational, financial and medical sectors in China. We designed and piloted an error detection task in which employees had to compare fictitious customer orders to deliveries of an online shop. We tested for indirect effects using the PROCESS macro with bootstrapping (3) Results: Our findings confirmed indirect effects of job insecurity on both ARCES and the ability to detect errors via burnout. (4) Conclusions: The present research shows that job insecurity influences making and detecting errors through its relationship with burnout. These findings suggest that job insecurity could increase the likelihood for human error with potential implications for employees’ safety and the safety of others.
Publisher: Elsevier BV
Date: 11-2023
Publisher: SAGE Publications
Date: 06-2017
Abstract: Objective We compared the effectiveness of single-tone earcons versus spearcons in conveying information about two commonly monitored vital signs: oxygen saturation and heart rate. Background The uninformative nature of many medical alarms-and clinicians' lack of response to alarms-is a widespread problem that can compromise patient safety. Auditory displays, such as earcons and spearcons (speech-based earcons), may help clinicians maintain awareness of patients' well-being and reduce their reliance on alarms. Earcons are short abstract sounds whose properties represent different types and levels of information, whereas spearcons are time-compressed spoken phrases that directly state their meaning. Listeners might identify patient vital signs more accurately with spearcons than with earcons. Method In Experiment 1 we compared how accurately 40 nonclinician participants using either (a) single-tone earcons differentiated by timbre and tremolo or (b) Cantonese spearcons recorded using a female Cantonese voice could identify both oxygen saturation and heart rate levels. In Experiment 2 we tested the identification performance of six further nonclinician participants with spearcons recorded using a male Cantonese voice. Results In Experiment 1, participants using spearcons identified both vital signs together more accurately than did participants using earcons. Participants using Cantonese spearcons also learned faster, completed trials faster, identified in idual vital signs more accurately, and felt greater ease and more confident when identifying oxygen saturation levels. Experiment 2 verified the previous findings with male-voice Cantonese spearcons. Conclusion Participants identified vital signs more accurately using spearcons than with the single-tone earcons. Application Spearcons may be useful for patient monitoring in situations in which intermittently presented information is desirable.
Publisher: American Psychological Association (APA)
Date: 12-2019
DOI: 10.1037/XAP0000217
Abstract: Spearcons-time-compressed speech phrases-may be an effective way of communicating vital signs to clinicians without disturbing patients and their families. Four experiments tested the effectiveness of spearcons for conveying oxygen saturation (SpO2) and heart rate (HR) of one or more patients. Experiment 1 demonstrated that spearcons were more effective than earcons (abstract auditory motifs) at conveying clinical ranges. Experiment 2 demonstrated that casual listeners could not learn to decipher the spearcons whereas listeners told the exact vocabulary could. Experiment 3 demonstrated that participants could interpret sequences of sounds representing multiple patients better with spearcons than with pitch-based earcons, especially when tones replaced the spearcons for normal patients. Experiment 4 compared multiple-patient monitoring of two vital signs with either spearcons, a visual display showing SpO2 and HR in the same temporal sequence as the spearcons, or a visual display showing multiple patient levels simultaneously. All displays conveyed which patients were abnormal with high accuracy. Visual displays better conveyed the vital sign levels for each patient, but cannot be used eyes-free. All displays showed accuracy decrements with working memory load. Spearcons may be viable for single and multiple patient monitoring. Further research should test spearcons with more vital signs, during multitasking, and longitudinally. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
Publisher: Wiley
Date: 06-10-2018
DOI: 10.1111/JEP.12655
Abstract: The aim of this review was to identify general theoretical frameworks used in online social network interventions for behavioral change. To address this research question, a PRISMA-compliant systematic review was conducted. A systematic review (PROSPERO registration number CRD42014007555) was conducted using 3 electronic databases (PsycINFO, Pubmed, and Embase). Four reviewers screened 1788 abstracts. 15 studies were selected according to the eligibility criteria. Randomized controlled trials and controlled studies were assessed using Cochrane Collaboration's "risk-of-bias" tool, and narrative synthesis. Five eligible articles used the social cognitive theory as a framework to develop interventions targeting behavioral change. Other theoretical frameworks were related to the dynamics of social networks, intention models, and community engagement theories. Only one of the studies selected in the review mentioned a well-known theory from the field of health psychology. Conclusions were that guidelines are lacking in the design of online social network interventions for behavioral change. Existing theories and models from health psychology that are traditionally used for in situ behavioral change should be considered when designing online social network interventions in a health care setting.
Publisher: Elsevier BV
Date: 07-2015
Publisher: Oxford University Press (OUP)
Date: 2012
Publisher: Informa UK Limited
Date: 09-07-2019
DOI: 10.1080/00140139.2019.1629637
Abstract: Three computer-based experiments were conducted to examine whether disfluent format, enhanced text, and increased exposure time improve the accuracy of visual differentiation and recognition memory of look-alike drug names. A three-way, repeated-measures look-alike drug name differentiation test assessed the visual differentiation accuracy of 30 nursing students (Experiment 1) and 15 nurses (Experiment 2). A two-way, repeated-measures recognition memory test examined the recognition memory accuracy of 15 nurses for look-alike drug names (Experiment 3). We found that making drug names disfluent did not significantly improve differentiation (Experiment 2) or memory accuracy (Experiment 3), but even impaired differentiation accuracy (Experiment 1). Enhanced text and longer exposure time significantly improved differentiation accuracy (Experiments 1 and 2). However, the enhanced text did not improve recognition memory (Experiment 3). We suggest that making look-alike drug names disfluent is not favourable. Enhanced text and longer exposure times are effective in supporting visual differentiation of look-alike drug names.
Location: United Kingdom of Great Britain and Northern Ireland
Start Date: 2018
End Date: 2018
Funder: University Grants Committee
View Funded ActivityStart Date: 2017
End Date: 2019
Funder: Australian Research Council
View Funded ActivityStart Date: 2013
End Date: 2015
Funder: University Grants Committee
View Funded ActivityStart Date: 06-2017
End Date: 12-2020
Amount: $381,000.00
Funder: Australian Research Council
View Funded Activity