Category: Journal

Knowing When to Support: A Human-Aware Agent Model in a Psychological Domain

Knowing When to Support: A Human-Aware Agent Model in a Psychological Domain

Azizi Ab AZIZ

Human-Centred Computing Research Lab, School of Computing, CAS Universiti Utara Malaysia 06010 UUM Sintok, Kedah, Malaysia

Page 45 – 54   |   Vol. 1, No. 1 (2016)   |    Available online on 1 September 2016

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Abstract

The human mind is undoubtedly one of the most complicated entities in this world. The collection of processes that are performed by the human mind is indicated by cognition. Much progress has been made to allow scientists to understand this fundamental concept of mind. Formal analysis is one of the methods to unravel the mechanisms of mind. This is in line with the aim of cognitive modellers in their quest to explain the structures and the processes of the mind by building them. In this article, the foundations to develop a cognitive computational model will be discussed and a case study (model in anxiety state and traits) is presented as a basis to visualize those concepts (foundations). A number of well-known relations between events and the course of anxiety are summarized from the literature and it is shown that the model exhibits those patterns. In addition, the formal model has been mathematically analysed to find out which stable situations exist. Finally, it is pointed out how this model can be used in virtual simulation environment, supported by a software agent.

Keywords

Computational psychology, cognitive modeling, human functioning model, human-agent model

Acknowledgement

This research is fully supported by RACE grant (code S/O: 12633) and PBIT (code S/O: 12615).
The authors fully acknowledged Ministry of Higher Education (MOHE) and Universiti Utara Malaysia for the approved funds which makes this important research viable and effective.

© 2022 Human Factors and Ergonomics Society (HFEM). All rights reserved.

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Human Factors & Ergonomics Journal (HFEJ), eISSN: 2590-3705  is the official Journal of Human Factors and Ergonomics Society Malaysia.  The journal is published on a biannual basis. HFEJ aims to address current research in the field of Ergonomics in addition to the broad coverage of cognitive ergonomics, user experience, physical ergonomics and others such as transportation, industrial design and industrial engineering. HFEJ is a member of, and subscribes to the principles of the COPE (Committee on Publication Ethics), as such we only accept original work.

The Prevalence of Work-Related Musculoskeletal Disorders and Stress Level Among Hospital Nurses

The Prevalence of Work-Related Musculoskeletal Disorders and Stress Level Among Hospital Nurses
Ezrin Hani SUKADARIN1, Norraphat Uttraphan PIM1, Junaidah ZAKARIA1, Baba Md DEROS2, Nur Syazwani Md NAWI2

1 Occupational Safety and Health Program, Faculty of Engineering Technology, Universiti Malaysia Pahang, 26300 Gambang, Pahang, Malaysia.

2 Department of Mechanical and Materials Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bandar Baru Bangi, Selangor, Malaysia

Page 40 – 44   |   Vol. 1, No. 1 (2016)   |    Available online on 1 September 2016

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Abstract

Hospital nurses receive enormous amounts of physical and mental workload which causes them to develop work-related musculoskeletal disorders (WRMSDs) and occupational stress. In this research, a cross-sectional study was carried out to identify the prevalence of WRMSDs, to evaluate the level of stress, and also to investigate the relationship between musculoskeletal complaints (MSCs) and stress level among one hundred and eight hospital nurses (n=108) in a government hospital. Data collection was done using three instruments, namely Nordic Musculoskeletal Questionnaire (NMQ), Workplace Ergonomic Risk Assessment Tool (WERA), and Stress Overload Scale Instrument (SOS). Based on the results obtained, a majority of the nurses suffer lower back pain whereas in terms of stress level, the nurses face relatively high stress level from their work. The relationship between MSCs and stress level was found to be absent. WRMSDs and stress are both multifactorial thus making it hard to conclude that the WRMSDs experienced by the nurses are caused by stress. Because of that, further study in relation to WRMSDs and stress is required to explore this issue.

Keywords

WRMSDs, NMQ, WERA, SOS

Acknowledgement

This study was supported by Universiti Malaysia Pahang (UMP). We would like to express our
gratitude to the Faculty of Engineering Technology (FTek), UMP Malaysia for the support in this study. Not to forget, our sincerest gratitude to all respondents who took part in this research.

© 2022 Human Factors and Ergonomics Society (HFEM). All rights reserved.

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Human Factors & Ergonomics Journal (HFEJ), eISSN: 2590-3705  is the official Journal of Human Factors and Ergonomics Society Malaysia.  The journal is published on a biannual basis. HFEJ aims to address current research in the field of Ergonomics in addition to the broad coverage of cognitive ergonomics, user experience, physical ergonomics and others such as transportation, industrial design and industrial engineering. HFEJ is a member of, and subscribes to the principles of the COPE (Committee on Publication Ethics), as such we only accept original work.

Car Users’ Aftermarket Behaviour in Klang Valley: A Special Focus on Auto Tinting

Car Users’ Aftermarket Behaviour in Klang Valley: A Special Focus on Auto Tinting
Zulhaidi MOHD JAWI1, Mohd Hafzi MD ISA1, 2, Mohd Syazwan SOLAH1, Aqbal Hafeez ARIFFIN1, Azhani ALI3

1 Crash Safety Engineering Unit, Vehicle Safety and Biomechanics Research Centre, Malaysian Institute of Road Safety Research (MIROS), Malaysia

2 ASEAN NCAP Operationalization Unit, Director-General Office, Malaysian Institute of Road Safety Research (MIROS), Malaysia

3 Behaviour Analysis and Valuation Unit, Road User Behavioural Change Research Centre, Malaysian Institute of Road Safety Research (MIROS), Malaysia

Page 33 – 39   |   Vol. 1, No. 1 (2016)   |    Available online on 1 September 2016

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Abstract

This paper aims to contribute to the understanding of automotive tinting popularity among car users in Malaysia. While comfort (heat and glare) and security stand among the main reasons behind the popularity, there is however, some notable safety arguments about the automotive tinting. The prevailing regulation on auto tinting, which is dubbed as “outdated and unfair”, had caused public uproar about the permissible limit in terms of Visible Light Transmission (VLT). The results from the most recent survey on automotive consumerism are used in the discussion, together with two previous MIROS’ studies i.e. on weather issues and the auto tinting consultation report to the Ministry of Transport Malaysia (MOT). The highlights, among others, were about the aftermarket behavior among car users in Klang Valley. Out of 265 respondents, approximately 70% of them had done the tinting to their current (main) car with the declared mean and maximum cost of MYR 780.81 and MYR 4,000.00, respectively. Also, the result has supported that the auto tinting together with the tires are the most popular aftermarket items for modification and retrofitting among the car users.

Keywords

Auto tinting, Visible Light Transmission (VLT), aftermarket behavior, comfort

Acknowledgement

The recent study was supported by the Malaysian Institute of Road Safety Research (MIROS), under the Vehicle Safety and Biomechanics Research Centre (VSB) Grant No. VS102077 (Identification of Car User’s Practices and Behaviour in a Proposed Conceptual Framework of Automotive Consumerism). The authors would also like to extend their sincerest gratitude to the VSB Director, Ir. Rasid Osman, and to the researchers and research assistants at MIROS for their valuable contributions during the entire research project and the writing of this report.

© 2022 Human Factors and Ergonomics Society (HFEM). All rights reserved.

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Human Factors & Ergonomics Journal (HFEJ), eISSN: 2590-3705  is the official Journal of Human Factors and Ergonomics Society Malaysia.  The journal is published on a biannual basis. HFEJ aims to address current research in the field of Ergonomics in addition to the broad coverage of cognitive ergonomics, user experience, physical ergonomics and others such as transportation, industrial design and industrial engineering. HFEJ is a member of, and subscribes to the principles of the COPE (Committee on Publication Ethics), as such we only accept original work.

Multi-Modal User Interfaces: Effects of Redundant and Complementary Approaches in High Stimuli Environments

Multi-Modal User Interfaces: Effects of Redundant and Complementary Approaches in High Stimuli Environments

Steven J. Kerr, Carmen Siau

Motorola Solutions, Innovation Design – Human Factors, Penang, Malaysia

Page 16 – 26   |   Vol. 1, No. 1 (2016)   |    Available online on 1 September 2016

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Abstract

Professionals such as public safety workers have to use communication devices as part of their job which can be high stress and involve demands on their cognitive resources that would be better applied to their task at hand. Multi Modal User Interfaces (MMUI), have been proposed as a way of supporting more flexible, efficient interfaces, appropriately conveying information to users whilst they are busily involved in their tasks. In this paper we describe a usability study dealing with two types of MMUI environments, redundant and complementary, under a controlled driving simulation environment and explore how these two approaches plus increasing modality impacts user interactions with their primary task of driving plus their secondary task of communicating.
Results show that increasing modalities potentially help users communicate more effectively in high stimuli environments though modality conflict has to be considered when the user cannot ignore it e.g. audio instructions on driving whilst talking to someone. Whilst complementary modalities show a slightly higher cognitive load rating, in general there appears little difference between redundant and complementary approaches.

Keywords

Multimodal interfaces, communication devices, cognitive load, usability

Acknowledgement

Thanks to the participants from Motorola Solutions Penang for taking part in this study and thanks to UniMas, Kuching, whose internship support facilitated study.

© 2022 Human Factors and Ergonomics Society (HFEM). All rights reserved.

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Human Factors & Ergonomics Journal (HFEJ), eISSN: 2590-3705  is the official Journal of Human Factors and Ergonomics Society Malaysia.  The journal is published on a biannual basis. HFEJ aims to address current research in the field of Ergonomics in addition to the broad coverage of cognitive ergonomics, user experience, physical ergonomics and others such as transportation, industrial design and industrial engineering. HFEJ is a member of, and subscribes to the principles of the COPE (Committee on Publication Ethics), as such we only accept original work.

Usability Evaluation of New Kansei Interface Feature Versus. Existing Interface Feature in Automotive Navigation System

Usability Evaluation of New Kansei Interface Feature Versus. Existing Interface Feature in Automotive Navigation System
Alwis N1, Muhammad Syafiq Syed Mohamed2 and Shamsul BMT3

1,3 Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences University Putra Malaysia

2 Faculty of Manufacturing Engineering, Technical University of Malaysia Malacca (UTeM)

Page 9 – 15   |   Vol. 1, No. 1 (2016)   |    Available online on 1 September 2016

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Abstract

This study aims to evaluate the usability of new Kansei navigation system interface features versus. existing interface design features in automotive navigation system. The Study population consist of participants which are chosen using purposive sampling technique consist of male professional drivers (PD) and non-professional drivers (NPD) of a local University in Malaysia. A total of 60 participant ranging from 18 – 39 years old participated in this study. Participants were tested using a customized driving simulator which participant will drive according to the route shown by the GPS navigation system( GPS system based on Kansei versus existing system) drivers were tested in terms of their 1) completion time for each task given 2) the number of error produce from each task 3) the satisfaction level from each feature in the GPS system using System Usability Scale (SUS) 4) a kansei survey to measure participant understanding and perception towards usability of GPS interface designs. 

A Counterbalance method was used in order to eliminate order biased participant. A total of 10 minutes was taken to complete the overall task. Wilcoxon Sign Test was used to compare all objectives except for satisfaction level for NPD and Kansei survey for PD.The Result for driving completion time for both PD and NPD, shows that Kansei GPS system (PD, mean = 2.49±0.66 min, NPD, mean = 2.18±0.71 min) had significantly shorter completion time (p=0.013) compared to the existing system (PD, mean = 2.75±0.66 min, NPD, mean = 2.44±0.74 min). For the number of errors, Kansei GPS system showed a significantly lowered driving error (p <0.05) (PD, mean = 8.86±6.55, NPD, mean = 7.23±6.03) compared to existing GPS System (PD, mean = 13.7±7.94 NPD, mean =10.6±7.6). For the satisfaction level showed no significant different in satisfaction for Kansei GPS System both (PD, mean score = 61.7±19.4 NPD, mean score = 66.58±21.9) compared to existing GPS (PD, mean score = 66.58±21.9 NPD, mean score = 63.58±20.9) (p>0.05). In term of Kansei Survey, shows that there is a significantly higher scoring for Kansei GPS system for both (PD, mean score = 3.6±0.99 and NPD, mean score = 3.69±1.44) compared with existing (PD, mean score =3.15±0.88 NPD, mean score = 2.68±0.18) (p<0.05). 

The conclusion of the was the new Kansei GPS system performed better in reducing the task completion time, reducing the numbers of driving error and easily distinguish features compared to existing GPS system. However, both professional and non-professional were satisfied using Kansei and existing GPS system.

Keywords

Kansei, GPS, Simulator, Error, Completion time, Drivers, SUS

Acknowledgement

–

© 2022 Human Factors and Ergonomics Society (HFEM). All rights reserved.

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Human Factors & Ergonomics Journal (HFEJ), eISSN: 2590-3705  is the official Journal of Human Factors and Ergonomics Society Malaysia.  The journal is published on a biannual basis. HFEJ aims to address current research in the field of Ergonomics in addition to the broad coverage of cognitive ergonomics, user experience, physical ergonomics and others such as transportation, industrial design and industrial engineering. HFEJ is a member of, and subscribes to the principles of the COPE (Committee on Publication Ethics), as such we only accept original work.

Computational Model of Situation Awareness for Action Performed in Driving

Computational Model of Situation Awareness for Action Performed in Driving

Rabi MUSTAPHA, Azizi Ab AZIZ, Yuhanis YUSOF

Human-Centred Computing Research Lab, School of Computing, College of Arts and Sciences (CAS), Universiti Utara Malaysia (UUM), Malaysia

E-mail: rabichubu@yahoo.com, aziziaziz@uum.edu.my, yuhanis@uum.edu.my.

Page 1 – 8   |   Vol. 1, No. 1 (2016)   |    Available online on 1 September 2016

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Abstract

Driving is defined as a process of moving from one destination to another with the main aim to get to the destination safely. This study proposes a computational situation awareness model to assist drivers in effective performance of action based on his decision. The model incorporates cognitive factors that will influence action performance (yes/no) of the driver. To illustrate the proposed model, simulation scenarios based on overtaking maneuvers has been conducted. The experimental results show that the external factors attention and expectation have contributed to the effect on the safe and risky driving behavior and by suggestion on the driver’s action to perform the overtaken maneuvers based on his decision. Moreover, this model has been verified using an automated verification tool by checking its traces with the existing results from the literature.

Keywords

Computational Models, Situation Awareness Model, Performance of Action, Driving

Acknowledgement

–

© 2022 Human Factors and Ergonomics Society (HFEM). All rights reserved.

Recommended articles

Publish with us

Human Factors & Ergonomics Journal (HFEJ), eISSN: 2590-3705  is the official Journal of Human Factors and Ergonomics Society Malaysia.  The journal is published on a biannual basis. HFEJ aims to address current research in the field of Ergonomics in addition to the broad coverage of cognitive ergonomics, user experience, physical ergonomics and others such as transportation, industrial design and industrial engineering. HFEJ is a member of, and subscribes to the principles of the COPE (Committee on Publication Ethics), as such we only accept original work.