scholarly journals Anesthesia providers' visual attention in simulated anesthesia emergencies using conventional number-based and avatar-based patient monitoring: a prospective, eye-tracking study. (Preprint)

2021 ◽  
Author(s):  
Arsène Ljubenovic ◽  
Sadiq Said ◽  
Julia Braun ◽  
Bastian Grande ◽  
Michaela Kolbe ◽  
...  
Keyword(s):  
Visual Attention ◽  
Eye Tracking ◽  
Task Performance ◽  
Situation Awareness ◽  
Dwell Time ◽  
Patient Monitoring ◽  
Situational Awareness ◽  
Patient Monitor ◽  
Anesthesia Providers ◽  
Significant Difference

BACKGROUND Inadequate situational awareness accounts for two-thirds of preventable complications in anesthesia. An essential tool for situational awareness in the perioperative setting is the patient monitor. However, the conventional monitor has several weaknesses. Avatar-based patient monitoring may address these shortcomings and promote situation awareness, a prerequisite for good decision making. OBJECTIVE The spatial distribution of visual attention is a fundamental process for achieving adequate situation awareness and thus a potential quantifiable surrogate for situation awareness. Moreover, measuring visual attention with a head-mounted eye-tracker may provide insights into usage and acceptance of the new avatar-based patient monitoring modality. METHODS This prospective eye-tracking study compared anesthesia providers' visual attention on conventional and avatar-based patient monitors during simulated critical anesthesia events. We defined visual attention, measured as fixation count and dwell time, as our primary outcome. We correlated visual attention with the potential confounders: performance in managing simulated critical anesthesia events (task performance), work experience, and profession. We used mixed linear models to analyze the results. RESULTS Fifty-two teams performed 156 simulations. After a manual quality check of the eye-tracking footage, we excluded 57 simulations due to technical problems and quality issues. Participants had a median of 198 (IQR 92.5 – 317.5) fixations on the patient monitor with a median dwell time of 30.2 (IQR 14.9 – 51.3) seconds. We found no significant difference in participants' visual attention when using avatar-based patient monitoring or conventional patient monitoring. However, we found that with each percentage point of better task performance, the number of fixations decreased by about 1.39 (coefficient -1.39; 95%CI: -2.44 to -0.34; P=0.02), and the dwell time diminished by 0.23 seconds (coefficient -0.23; 95%CI: -0.4 to -0.06; P=0.01). CONCLUSIONS Using eye-tracking, we found no significant difference in visual attention when anesthesia providers used avatar-based monitoring or conventional patient monitoring in simulated critical anesthesia events. However, we identified visual attention in conjunction with task performance as a surrogate for situational awareness. CLINICALTRIAL Business Management System for Ethics Committees Number Req-2020-00059

scholarly journals Effect of Monitor Placement on Situational Awareness and Visual Attention in Simulated Neonatal Resuscitations

2018 ◽  
Vol 23 (suppl_1) ◽  
pp. e28-e29
Author(s):  
Brenda Hiu Yan Law ◽  
Po-Yin Cheung ◽  
Sylvia van Os ◽  
Caroline Fray ◽  
Georg Schmölzer
Keyword(s):  
Visual Attention ◽  
Eye Tracking ◽  
Situation Awareness ◽  
Neonatal Intensive Care ◽  
Situational Awareness ◽  
Assessment Tool ◽  
Vital Signs ◽  
Neonatal Resuscitation ◽  
User Preference ◽  
And Performance

Abstract BACKGROUND Decision-making in neonatal resuscitation depends on clinical evaluation, oxygen saturation and heart-rate. However, the position of vital signs monitors varies between institutions and might lead to obstructed or difficult to see displays, which might affect Health Care Provider (HCP) performance. OBJECTIVES To compare Situation Awareness (SA), Neonatal Resuscitation (NRP) checklist score, Visual Attention (VA) and participant satisfaction during simulated neonatal resuscitations using two vital signs monitors locations. DESIGN/METHODS NRP-trained HCPs were recruited from a tertiary Neonatal Intensive Care Unit and randomized to either central (eye-level on the radiant warmer) or peripheral (left of the warmer) monitor placement. Following an orientation scenario, each HCP lead a resuscitation requiring intubation and chest compressions with a high-fidelity manikin (Newborn HAL, Gaumard Scientific, Miami, FL) and a standardized assistant. Each scenario was paused at 3 predetermined points and the HCP was asked 5 SA questions at each pause, per the Situation Awareness Global Assessment Tool (SAGAT) format. Simulations were video-recorded to analyze SAGAT responses and performance rating using a modified NRP checklist. VA was recorded using eye-tracking glasses (Tobii Pro, Tobii Technology Inc., Falls Church, VA) worn by participants. Statistical analysis was performed using Mann-Whitney U test. A post-simulation survey examined user preference. RESULTS We randomized 30 HCPs; all were analyzed for SA and NRP checklist scores. Twenty-two eye-tracking recordings were of sufficient quality and analyzed. SAGAT scores (median 11/15 vs. 12/15, p=0.52) and NRP Checklist Scores (median 46/50, p=0.75) were similar between groups. Distribution of VA was also similar in both groups. In the post-simulation survey, all HCPs found central monitor placement convenient, compared with only 8/15 in peripheral placement. CONCLUSION During simulated neonatal resuscitation, HCPs found central monitor placement more convenient. However, no differences in accuracy of situation awareness responses, NRP checklist scores, or visual attention were found. Hi-fidelity simulation, SAGAT, and eye-tracking can be used to evaluate physical ergonomics of neonatal resuscitation.

Evaluation of a Tunnel-in-the-Sky Head-Up Display Design for Curved Approaches Using Eye-Tracking

2020 ◽  
Vol 10 (1) ◽  
pp. 3-12
Author(s):  
Ana Paz Goncalves Martins ◽  
Steffen Hölscher ◽  
Thomas Dautermann
Keyword(s):  
Visual Attention ◽  
Eye Tracking ◽  
Situation Awareness ◽  
Situational Awareness ◽  
Tracking Data ◽  
Two Dimensional ◽  
Display Design ◽  
Perceived Workload ◽  
Tracking Behavior ◽  
Very High

Abstract. Head-up displays (HUD) assist pilots, especially in the approach and landing phase. In this paper we compared pilots’ eye-tracking behavior between a pathway-in-the-sky layout versus the more conventional two-dimensional symbology in an HUD in a fixed-based cockpit simulator. In particular, we wanted to assess how visual attention was distributed within each layout (tunnel and standard). Performance and eye-tracking data were recorded, as well as workload and situation awareness measures. Results showed that the tunnel-in-the-sky symbology provided a very high tracking performance with low perceived workload and high perceived situational awareness. The analysis of the eye-tracking data revealed possible attentional tunneling with the tunnel-in-the-sky symbology and large differences between the displays in the distribution of visual attention.

scholarly journals Visual Attention to Tobacco-Related Stimuli in a 3D Virtual Store

2020 ◽  
Author(s):  
Lauren M. Dutra ◽  
James Nonnemaker ◽  
Nathaniel Taylor ◽  
Ashley Feld ◽  
Brian Bradfield ◽  
...  
Keyword(s):  
Visual Attention ◽  
Eye Tracking ◽  
Dwell Time ◽  
Three Dimensional ◽  
Tobacco Product ◽  
Convenience Store ◽  
Tobacco Products ◽  
Point Of Sale ◽  
Current Cigarette ◽  
Store Environment

We used eye tracking to measure visual attention to tobacco products and pro- and anti-tobacco advertisements (pro-ads and anti-ads) during a shopping task in a three-dimensional virtual convenience store. We used eye-tracking hardware to track the percentage of fixations (number of times the eye was essentially stationary; F) and dwell time (time spent looking at an object; DT) for several categories of objects and ads for 30 adult current cigarette smokers. We used Wald F-tests to compare fixations and dwell time across categories, adjusting comparisons of ads by the number of each type of ad. Overall, unadjusted for the number of each object, participants focused significantly greater attention on snacks and drinks and tobacco products than ads (all P<0.005). Adjusting for the number of each type of ad viewed, participants devoted significantly greater visual attention to pro-ads than anti-ads or ads unrelated to tobacco (P<0.001). Visual attention for anti-ads was significantly greater when the ads were placed on the store’s external walls or hung from the ceiling than when placed on the gas pump or floor (P<0.005). In a cluttered convenience store environment, anti-ads at the point of sale have to compete with many other stimuli. Restrictions on tobacco product displays and advertisements at the point of sale could reduce the stimuli that attract smokers’ attention away from anti-ads.

scholarly journals Comparing Classroom Instruction to Individual Instruction as an Approach to Teach Avatar-Based Patient Monitoring With Visual Patient: Simulation Study (Preprint)

2020 ◽  
Author(s):  
Julian Rössler ◽  
Alexander Kaserer ◽  
Benjamin Albiez ◽  
Julia Braun ◽  
Jan Breckwoldt ◽  
...  
Keyword(s):  
Large Scale ◽  
Patient Monitoring ◽  
Vital Signs ◽  
Care Providers ◽  
Instruction Group ◽  
Anesthesia Providers ◽  
Individual Instruction ◽  
Significant Difference ◽  
Historical Sample ◽  
Class Instruction

BACKGROUND Visual Patient is an avatar-based alternative to standard patient monitor displays that significantly improves the perception of vital signs. Implementation of this technology in larger organizations would require it to be teachable by brief class instruction to large groups of professionals. Therefore, our study aimed to investigate the efficacy of such a large-scale introduction to Visual Patient. OBJECTIVE In this study, we aimed to compare 2 different educational methods, one-on-one instruction and class instruction, for training anesthesia providers in avatar-based patient monitoring. METHODS We presented 42 anesthesia providers with 30 minutes of class instruction on Visual Patient (class instruction group). We further selected a historical sample of 16 participants from a previous study who each received individual instruction (individual instruction group). After the instruction, the participants were shown monitors with either conventional displays or Visual Patient displays and were asked to interpret vital signs. In the class instruction group, the participants were shown scenarios for either 3 or 10 seconds, and the numbers of correct perceptions with each technology were compared. Then, the teaching efficacy of the class instruction was compared with that of the individual instruction in the historical sample by 2-way mixed analysis of variance and mixed regression. RESULTS In the class instruction group, when participants were presented with the 3-second scenario, there was a statistically significant median increase in the number of perceived vital signs when the participants were shown the Visual Patient compared to when they were shown the conventional display (3 vital signs, <i>P</i>&lt;.001; effect size –0.55). No significant difference was found for the 10-second scenarios. There was a statistically significant interaction between the teaching intervention and display technology in the number of perceived vital signs (<i>P</i>=.04; partial η<sup>2</sup>=.076). The mixed logistic regression model for correct vital sign perception yielded an odds ratio (OR) of 1.88 (95% CI 1.41-2.52; <i>P</i>&lt;.001) for individual instruction compared to class instruction as well as an OR of 3.03 (95% CI 2.50-3.70; <i>P</i>&lt;.001) for the Visual Patient compared to conventional monitoring. CONCLUSIONS Although individual instruction on Visual Patient is slightly more effective, class instruction is a viable teaching method; thus, large-scale introduction of health care providers to this novel technology is feasible.

scholarly journals Effect of SBAR situational awareness technique as educational intervention on critical care nurse students' skills of patient safety

2020 ◽  
Vol 10 (5) ◽  
pp. 47
Author(s):  
Asmaa Ahmed Morsy ◽  
Fatma Refaat Ahmed
Keyword(s):  
Critical Care ◽  
Patient Safety ◽  
Situation Awareness ◽  
Situational Awareness ◽  
Safety Skills ◽  
Care Nurse ◽  
Critical Care Nurse ◽  
Safety Standards ◽  
Significant Difference ◽  
Nurse Students

Background: Situation awareness could actively scan for risk across multiple domains. It has been defined as “the perception of elements in the environment within a volume of time and space, the comprehension of their meaning, and the projection of their status in the near future”. Situation awareness includes three levels; perception, comprehension, and projection. Perception is the first step in developing situation awareness as it includes students' perception of status, attributes, and dynamics of relevant elements in the ICU environment. Comprehension of the present situation is based on outputs of the perception. It includes understanding of the significance of the relevant elements. Finally, projection of future status includes the ability of students to predict the future actions of certain elements in the ICU environment. Appropriate situation awareness could increase the probability of a good task performance. In addition, feedback covers state of the ICU environment affected by both decisions and performance of the selected actions. While SBAR is acromion that represents the actual application of situational awareness through situation, background, assessment and recommendation. A representation of SBAR situational awareness has been depicted as an inner factor in the method for giving patient consideration and basic leadership that helps health care professionals to handle and process information about what is occurring. SBAR is a mechanism useful for framing any conversation, especially critical ones, requiring a practitioner's immediate attention and action to foster a culture of patient safety. Critical care nurses play an important role in their workplace related to patient safety. They should be able to recognize and analyze patient safety incidents using protocols, work in a team, learn from errors, and be able to identify actions and recommendations on how to prevent patient safety incidents through the use of SBAR situational awareness technique. Nursing students’ should recognize and understand what is going on around them. Consequently, they can plan ahead with greater knowledge to patient safety which arise the need to integrate SBAR situation awareness in their curricula.Method: A quasi experimental research design was used in this study in which two tools were used for data collection: “Self-Situational Awareness Assessment Questionnaire” and “Critical Care Nurse Students’ Safety Skills Checklist”.Results: There was a statistical significant difference between both groups of students in relation to situation awareness perception, process and skills (p < .001). Moreover, there was a statistical significant difference between the study and control groups in relation to the students' practices score regarding patients’ safety standards in the post-assessment phase (p < .001).Conclusion: In the current study, the SBAR situation awareness technique was used in training critical care nurse students to improve their situation awareness level to patient safety skills. Situation awareness perception, process and skills level were significantly increased for critical care nurse students who are subjected to the training program. Also, the students' skills regarding patients' safety standards practices were significantly improved. 

scholarly journals Gender differences: visual attention and attitude toward advertisements

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Juliana Cristina Boscolo ◽  
Jorge Henrique Caldeira Oliveira ◽  
Vishwas Maheshwari ◽  
Janaina de Moura Engracia Giraldi
Keyword(s):  
Gender Differences ◽  
Visual Attention ◽  
Eye Tracking ◽  
Content Type ◽  
Print Advertisements ◽  
Significant Difference ◽  
Quota Sampling ◽  
Tracking Device ◽  
Insight Into ◽  
Structured Questionnaire

PurposeThis study examines the differences between genders in visual attention and attitudes toward different types of advertisements.Design/methodology/approachAn experimental design using a structured questionnaire and six print advertisements with a male, female and neutral focus was used to evaluate gender differences. In total, 180 students from a public university in Brazil participated in the study. An eye-tracking device was employed, using the Tobii Studio software, to get the visual attention metrics for this study.FindingsIn the case of the female advertisements, no significant difference between visual attention and attitude was found; however, differences were found in the case of male visual attention to the image and their relative attitudes toward the advertisements.Research limitations/implicationsBecause it is a laboratory experiment using quota sampling, mainly Latin consumers, the potential for broader generalization may be limited. Besides, since they are real image advertisement images, there may be some interference in the respondents' responses from previous interactions with the brand or product exposed or even from a prior observation of this advertisement.Originality/valueThis study provides deeper insight into Latin consumers' preferences and associations, who have a different cultural and national context. This study contributes to the use of the eye-tracking tool as a neuromarketing technique to evaluate and analyze visual attention.

scholarly journals An Exploratory Application of Eye-Tracking Methods in a Discrete Choice Experiment

2018 ◽  
Vol 38 (6) ◽  
pp. 658-672 ◽  
Author(s):  
Caroline Vass ◽  
Dan Rigby ◽  
Kelly Tate ◽  
Andrew Stewart ◽  
Katherine Payne
Keyword(s):  
Decision Making ◽  
Eye Tracking ◽  
Risk Communication ◽  
Discrete Choice ◽  
Dwell Time ◽  
Ordinary Least Squares ◽  
Discrete Choice Experiments ◽  
Tracking Data ◽  
Significant Difference ◽  
Areas Of Interest

Background. Discrete choice experiments (DCEs) are increasingly used to elicit preferences for benefit-risk tradeoffs. The primary aim of this study was to explore how eye-tracking methods can be used to understand DCE respondents’ decision-making strategies. A secondary aim was to explore if the presentation and communication of risk affected respondents’ choices. Method. Two versions of a DCE were designed to understand the preferences of female members of the public for breast screening that varied in how risk attributes were presented. Risk was communicated as either 1) percentages or 2) icon arrays and percentages. Eye-tracking equipment recorded eye movements 1000 times a second. A debriefing survey collected sociodemographics and self-reported attribute nonattendance (ANA) data. A heteroskedastic conditional logit model analyzed DCE data. Eye-tracking data on pupil size, direction of motion, and total visual attention (dwell time) to predefined areas of interest were analyzed using ordinary least squares regressions. Results. Forty women completed the DCE with eye-tracking. There was no statistically significant difference in attention (fixations) to attributes between the risk communication formats. Respondents completing either version of the DCE with the alternatives presented in columns made more horizontal (left-right) saccades than vertical (up-down). Eye-tracking data confirmed self-reported ANA to the risk attributes with a 40% reduction in mean dwell time to the “probability of detecting a cancer” ( P = 0.001) and a 25% reduction to the “risk of unnecessary follow-up” ( P = 0.008). Conclusion. This study is one of the first to show how eye-tracking can be used to understand responses to a health care DCE and highlighted the potential impact of risk communication on respondents’ decision-making strategies. The results suggested self-reported ANA to cost attributes may not be reliable.

A study of customer perception of visual information in food stands through eye-tracking

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yoowha Jeon ◽  
Mi Sook Cho ◽  
Jieun Oh
Keyword(s):  
Visual Attention ◽  
Eye Tracking ◽  
Visual Processing ◽  
Visual Information ◽  
Food Service ◽  
Small Scale ◽  
Textual Information ◽  
Content Type ◽  
Movement Data ◽  
Significant Difference

PurposeThe study selected five small-scale food operations as visual stimuli and eye-tracking experiment was conducted with 36 female participants in a laboratory setting. Heat maps were used to visualize viewers' visual attention on the storefronts. The eye-movement data were analyzed using one-way repeated ANOVA to identify a significant difference between stimuli in terms of average fixation duration, fixation counts and revisits. An independent t-test was also used to examine statistical difference among text and image in menu board. The significance cut-off of p-value was set to <0.05.Design/methodology/approachThe exteriors of food-service establishments are major business representation. However, few studies have been conducted to examine customers' visual processing toward small-scale restaurants. The present study accordingly aims to discover customers' different levels of attention to the frontage in food stands through eye tracking, which would be practical for future owners to plan their exterior shop design.FindingsThe findings can be summarized as follows: First, upper board shows the highest level of attention, suggesting an optimal location of menu board for grasping customers' attention. Second, customers also gaze the inside of a store along with the food on display, which are related with food hygiene and the perception. Third, textual information on menu boards tends to attract more visual attention than those of images. Overall, the current study indicates various customers' attention toward the location of menu boards as well as the type of visual information on menu board.Originality/valueThe results of this study make a new insight into customers' viewing behavior toward exteriors of food-service establishments. This study is one of the first attempts to explore how customers distribute visual attention to the exterior images of food stand by using eye-tracking technology. The findings of this research thus enrich the food-service literature and offer meaningful discoveries on customers' visual behaviors. For example, this study suggests that customers tend to be attracted to textual information on menu boards rather than graphical ones.

Sign in / Sign up

Export Citation Format

Share Document