scholarly journals Task load in user interfaces on didactic mobile applications for users with ADHD

2020 ◽  
pp. 1-6
Author(s):  
Ulises PONCE-MENDOZA ◽  
Jesus Miguel GARCÍA-GORROSTIETA ◽  
José David MADRID-MONTEVERDE
Keyword(s):  
User Interfaces ◽  
Mobile Applications ◽  
Mobile App ◽  
Direct Application ◽  
Age Group ◽  
Children With Adhd ◽  
Task Load ◽  
Nasa Tlx ◽  
Usability Requirements ◽  
Load Indices

Objectives: Measure the task load using the user interface on didactic mobile applications by children with ADHD using the NASA-TLX instrument. Explore the feasibility of using the NASA-TLX instrument to measure task load in users with different abilities. Methodology: Qualitative sample exploratory study with direct application of a NASA-TLX instrument adapted to users with ADHD who use a didactic mobile app who belong to an age group from 5 to 15 years old population in the CAM # 8 in Moctezuma, Sonora. The instrument is applied indirectly, assisted by the educator in order to interpret the subjects' responses. Contribution: It describes the adaptation requirements of the instrument to the study subjects, explores task load indices during the use of user interfaces in subjects with different abilities, indicates the heterogeneity of the population and presents usability requirements and interaction characteristics for users with ADHD that allows to realize a design centered in the user.

Comparison of Weighted and Unweighted Task Load Indices for Single-Site Surgery Tasks

2021 ◽  
Vol 10 (1) ◽  
pp. 142-146
Author(s):  
Jia hui Ma ◽  
Bernadette McCrory ◽  
David Claudio
Keyword(s):  
Single Site ◽  
Future Research ◽  
Mixed Effect ◽  
Task Load ◽  
Subjective Workload ◽  
Mixed Effect Models ◽  
Nasa Tlx ◽  
Load Indices ◽  
Pearson Correlations ◽  
Single Site Surgery

Background: The National Aeronautics and Space Administration Task Load Index (NASA-TLX) a nd Surgery Task Load Index (SURG-TLX) are two subjective workload m easurement instruments. Both instruments provide unweighted andweightedworkload measurements. Weighted TLX m easures have seldomly been used byresearchers typically becauseof its high correlation with unweighted TLX a nd addedexperimentaltime to collect pairwise weightings. Therefore, theaim of thestudy wa s to compare weighted TLX scores with unweighted TLX scores and each’s sensitivity for demographic and experimentalfactors. Methods: Two simulated la paroscopic single site surgery tasks were completedusing four surgicalmethods by 25 participants. Pearson correlations, principle componentanalyses and mixed effect models were used to compare the unweightedandweighted TLXscores across tasks a nd methods. Results: There was a high correlation(r > 0.950, p < 0.001) betweentheunweighted TLXscores and the weighted TLX scores. The weighted TLX scores showed better sensitivity to both demographic and experimental factors for both TLX instruments. Conclusion: The overall weighted NASA-TLX and SURG-TLX scores differed from their respective unweighted scores even with a high correlation. The weighted TLXshowed potentialto better discriminate subjective workloadfor single-site ta sks. Future research is needed to identify and validatea more streamlinedweightingmethodparticularly for complex experimental taskslike single-site surgery.

scholarly journals An eye-tracking based robotic scrub nurse: proof of concept

2021 ◽  
Author(s):  
Ahmed Ezzat ◽  
Alexandros Kogkas ◽  
Josephine Holt ◽  
Rudrik Thakkar ◽  
Ara Darzi ◽  
...  
Keyword(s):  
Eye Tracking ◽  
Technology Acceptance ◽  
Operating Time ◽  
Human Robot Interaction ◽  
Motion Sensors ◽  
Scrub Nurse ◽  
Task Load ◽  
Significant Difference ◽  
Nasa Tlx ◽  
Robotic Devices

Abstract Background Within surgery, assistive robotic devices (ARD) have reported improved patient outcomes. ARD can offer the surgical team a “third hand” to perform wider tasks and more degrees of motion in comparison with conventional laparoscopy. We test an eye-tracking based robotic scrub nurse (RSN) in a simulated operating room based on a novel real-time framework for theatre-wide 3D gaze localization in a mobile fashion. Methods Surgeons performed segmental resection of pig colon and handsewn end-to-end anastomosis while wearing eye-tracking glasses (ETG) assisted by distributed RGB-D motion sensors. To select instruments, surgeons (ST) fixed their gaze on a screen, initiating the RSN to pick up and transfer the item. Comparison was made between the task with the assistance of a human scrub nurse (HSNt) versus the task with the assistance of robotic and human scrub nurse (R&HSNt). Task load (NASA-TLX), technology acceptance (Van der Laan’s), metric data on performance and team communication were measured. Results Overall, 10 ST participated. NASA-TLX feedback for ST on HSNt vs R&HSNt usage revealed no significant difference in mental, physical or temporal demands and no change in task performance. ST reported significantly higher frustration score with R&HSNt. Van der Laan’s scores showed positive usefulness and satisfaction scores in using the RSN. No significant difference in operating time was observed. Conclusions We report initial findings of our eye-tracking based RSN. This enables mobile, unrestricted hands-free human–robot interaction intra-operatively. Importantly, this platform is deemed non-inferior to HSNt and accepted by ST and HSN test users.

The effects of cognitive load on query reformulation: mental demand, temporal demand and frustration

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Kyoungsik Na
Keyword(s):  
Cognitive Load ◽  
User Interfaces ◽  
Information Search ◽  
Information Seeking ◽  
Empirical Support ◽  
Query Reformulation ◽  
Content Type ◽  
Mental Demand ◽  
Significant Difference ◽  
Nasa Tlx

PurposeThis study explores the effects of cognitive load on the propensity to reformulate queries during information seeking on the web.Design/methodology/approachThis study employs an experimental design to analyze the effect of manipulations of cognitive load on the propensity for query reformulation between experimental and control groups. In total, three affective components that contribute to cognitive load were manipulated: mental demand, temporal demand and frustration.FindingsA significant difference in the propensity of query reformulation behavior was found between searchers exposed to cognitive load manipulations and searchers who were not exposed. Those exposed to cognitive load manipulations made half as many search query reformulations as searchers not exposed. Furthermore, the National Aeronautical and Space Administration Task Load Index (NASA-TLX) cognitive load scores of searchers who were exposed to the three cognitive load manipulations were higher than those of searchers who were not exposed indicating that the manipulation was effective. Query reformulation behavior did not differ across task types.Originality/valueThe findings suggest that a dual-task method and NASA-TLX assessment serve as good indicators of cognitive load. Because the findings show that cognitive load hinders a searcher's interaction with information search tools, this study provides empirical support for reducing cognitive load when designing information systems or user interfaces.

Initiating Collaboration among Organ Transplant Professionals through Web Portals and Mobile Applications

2013 ◽  
Vol 18 (2) ◽  
Author(s):  
Susan Alexander ◽  
Haley Hoy ◽  
Manil Maskey ◽  
Helen Conover ◽  
John Gamble ◽  
...  
Keyword(s):  
Mobile Applications ◽  
Healthcare Providers ◽  
Organ Transplant ◽  
Pilot Project ◽  
Mobile App ◽  
Lessons Learned ◽  
Ease Of Use ◽  
Future Directions ◽  
Efficient Access ◽  
Health Related

The knowledge base for healthcare providers working in the field of organ transplantation has grown exponentially. However, the field has no centralized ‘space’ dedicated to efficient access and sharing of information.The ease of use and portability of mobile applications (apps) make them ideal for subspecialists working in complex healthcare environments. In this article, the authors review the literature related to healthcare technology; describe the development of health-related technology; present their mobile app pilot project assessing the effects of a collaborative, mobile app based on a freely available content manage framework; and report their findings. They conclude by sharing both lessons learned while completing this project and future directions.

scholarly journals Prototype User Interface Mobile App E-Learning

2021 ◽  
Vol 7 (1) ◽  
pp. 61-70
Author(s):  
Henderi Henderi ◽  
Praditya Aliftiar ◽  
Alwan Hibatullah
Keyword(s):  
User Interface ◽  
User Interfaces ◽  
Mobile Application ◽  
Mobile App ◽  
User Needs ◽  
High Fidelity ◽  
Application Development ◽  
E Learning ◽  
Prototype Design ◽  
People Today

Information technology has developed rapidly from time to time. One of the technologies commonly owned by many people today is smartphones with the Android and IOS platforms. By knowing this factor, mobile developers compete with each other to design applications with attractive user interfaces so that users are interested in using them. At this stage in mobile application development, starting from designing a user interface prototype. This stage aims to visualize user needs, improve user experience and simplify the coding process by programmers. In this study, researchers applied the prototype method. This research produces a prototype design for the e-learning application user interface which consists of a high fidelity prototype.

scholarly journals Seeing Things Differently: The use of mobile app interpretation and its effect on visitor experience at two heritage sites in Aotearoa New Zealand

2021 ◽  
Author(s):  
◽  
Jessica Aitken
Keyword(s):  
New Zealand ◽  
Case Studies ◽  
Mobile Applications ◽  
Mobile Apps ◽  
Qualitative Interviews ◽  
Mobile App ◽  
Research Approach ◽  
Visitor Experience ◽  
Heritage Sites ◽  
High Street

<p>The practice of contemporary heritage interpretation has seen increased investment in digital technologies and more recently in mobile applications. However, few empirical studies assess how effective mobile apps are to the visitor experience of heritage sites. What kind of visitor experience do mobile apps provide? How do mobile apps deliver on the aims of interpretation for heritage sites? What types of apps work best? What are the challenges for developers and heritage professionals?  A qualitative research approach is used to examine two case studies; High Street Stories: the life and times of Christchurch’s High Street Precinct and IPENZ Engineering Tours: Wellington Heritage Walking Tour. These case studies ask what kind of experience mobile apps offer as an interpretation tool at these heritage sites. To investigate the topic, email interviews were carried out with heritage professionals and digital developers; together with qualitative interviews with visitors recruited to visit the case study sites using the mobile applications.   This study explores two current examples of mobile app technology in the heritage sector in a New Zealand context. The results of this study aim to augment current literature on the topic of digital interpretation. This study seeks to offer heritage managers and interpreters some key factors to consider when making decisions regarding the methods used to present and interpret heritage sites to visitors and in developing new interpretation and digital strategies that include mobile applications. Although each scenario presents its particular set of considerations and all heritage sites are different, it is hoped these recommendations can be applied and offer working models and strategies.</p>

scholarly journals ANALYSIS OF DETERMINATION THE NUMBER PERSONNEL BASED ON WORKLOAD ACCORDING TO JOB DESCRIPTION (STUDY CASE IN ACCOUNTING INSTITUTIONS)

JOURNAL ASRO ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 34
Author(s):  
Ahmadi Ahmadi ◽  
Wahyu Endriyanto ◽  
Benny Sukandari ◽  
Agus Makhrowi
Keyword(s):  
Mental Workload ◽  
Optimal Number ◽  
Physical Workload ◽  
Job Description ◽  
Workload Analysis ◽  
Task Load ◽  
Workload Measurement ◽  
Measurement Analysis ◽  
Nasa Tlx

The workload is highly related to efficient and effective human resource utilization in an organization to achieve organizational objectives, vision, and mission. Various methods are used to optimize the number of personnel in an organization so that each task can be completed quickly and precisely. Accounting Institutions are inseparable from problems regarding the lack of workload with the number of personnel working on it. The change of the Policy gives an impact on the change of Job Description and List of Personnel Arrangements of the organization. To overcome these issues, workload measurement, analysis can be used to determine the optimal amount of personnel required in their working units. This study uses a mental workload measurement so called NASA-TLX and physical workload measurement According to the applicable workload regulation that is in accordance with the Administrative Direction of Workload Analysis. Both methods are then carried out to be compared to each other. The results showed that the physical workload is required in the completion of tasks in each work unit. In addition, the determination of the optimal number of personnel using physical workload or appropriate tasks per task position based Job Description is performed. As a result, it is known that there is an excessive workload in the Sub Service Budget Cost work units with personal shortcomings. On the other hand, there is an excessive personnel number in Administrative Work, Sub Department of Finance Administration and Sub Department Financial Control. The overall conclusion of this study is a need for personnel reduction in a List of Personnel Arrangements currently known as Accounting Institutions to be 39 personnel instead of the existing 48 personnel.  Keywords: Workload, NASA-TLX (Task Load Index), assignments Per Task title, Number of Optimal personnel

scholarly journals ALLOCATION OF MARITIME TASK FORCE PERSONNEL UNIFIL CONTINGEN BASED ON ANALYSIS WORK LOADS

JOURNAL ASRO ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 11
Author(s):  
Ahmadi Ahmadi ◽  
Okol Sri Suharyo ◽  
Arimbo Arimbo ◽  
Aab Abdul Wahab
Keyword(s):  
Task Force ◽  
Mental Workload ◽  
Physical Workload ◽  
Index Number ◽  
Task Load ◽  
Workload Measurement ◽  
Physical Burden ◽  
Nasa Tlx ◽  
The Right

The workload of an organization is related to the efficient and effective utilization of human resources so that it can realize the vision, mission and objectives of the organization. Various methods are used to optimize the number of personnel in an organization, so that each task can be completed effectively and efficiently. KRI Diponegoro-365 personnel as the TNI Maritime Task Force, the Garuda Contingent can not be separated from the problems regarding the lack of conformity to workload with the allocation of the number of available personnel. To overcome this, an analysis of workload measurement is needed which can then be used for determine the allocation of the right number of personnel needed in each division. This study uses the measurement of NASA-TLX mental workload and physical workload according to TNI Roles. Both of these methods are then compared between mental and physical burden that occurs. From the results of the comparison, it was found that physical workload is needed in the completion of tasks in each division. After a comparison, then the determination of the allocation of the number of personnel will be carried out using the physical workload approach based on the description of the tasks in each division. The results of the calculation will then show the division that has excess or lack of personnel. The overall results obtained from this study can be concluded that the number of maritime task force personnel using the Diponegoro class KRI is appropriate, but the allocation of personnel in each division needs to adjust to the existing workload.  Keywords: Workload, NASA-TLX (Task Load Index), Number of Military Personnel

scholarly journals Incorporating Contextual Information into Personalized Mobile Applications Recommendation

2021 ◽  
Author(s):  
Ke Zhu ◽  
Yingyuan Xiao ◽  
Wenguang Zheng ◽  
Xu Jiao ◽  
Chenchen Sun ◽  
...  
Keyword(s):  
Mobile Applications ◽  
Large Scale ◽  
Contextual Information ◽  
Mobile App ◽  
Mobile Internet ◽  
Current Time ◽  
Spatiotemporal Information ◽  
Data Overload ◽  
Effect Experiment ◽  
Contextual Characteristic

Abstract With the rise of the mobile internet, the number of mobile applications (apps) has shown explosive growth, which directly leads to the apps data overload. Currently, the recommender system has become the most effective method to solve the app data overload. App has the functional exclusiveness feature, which means the target users will not reuse apps with the same function in a certain spatiotemporal information. Most of the existing recommended methods for apps ignore the functional exclusiveness feature which makes it difficult to further improve the recommendation performance of the app recommendation. To solve this problem, we aim to improve the app recommendation performance, and propose a Personalized Context-aware Mobile App Recommendation Approach, called PCMARA. PCMARA comprehensively considers the user and app contextual information, which can mine the users app usage preference effectively. Specifically, (1) PCMARA explores the contextual characteristic of app, and constructs the app contextual factors for app which represent the function of app. (2) For the app functional exclusiveness problem, PCMARA leverages the app contextual factor to design a novel app similarity model, which enable to effectively eliminate this problem. (3) PCMARA considers the contextual information of users and apps to generates a recommendation list for target users based on the target users' current time and location. We applied the PCMARA to a real-world dataset and conducted a large-scale recommendation effect experiment. The experimental results show that the recommendation effect of PCMARA is satisfactory.

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