MENTAL WORKLOAD ASSESSMENT. Learning objectives Understand the difficulties in defining mental workload. Give an account of why the discussion of mental.

Slides:



Advertisements
Similar presentations
1 The role of human in ATM automation: a key issue Alain Printemps head of DNA/CENA.
Advertisements

VERRES VLTA Emergency Requirement Research Evaluation Study Crew Co-operation in VLTA The Fourth Triennial International Aircraft Fire and Cabin Safety.
Adler/Rodman Copyright © 2006 by Oxford University Press, Inc.
Intelligence Give a definition of intelligence that you could defend, explaining why you believe you could defend it. Give examples of ways your definition.
Consultation on Senior Cycle Science Anna Walshe Brendan Duane
Copyright 2009 Terema Ltd Phil Higton (Director of Training – Terema Ltd) The Quality Improvement Academy Human Factors, Safety.
Human Factors & Errors Key objectives of HF is to design systems that –people can use –increase efficiency and performance –minimise the risks of errors.
International Journal of Industrial Ergonomics 35 (2005) 939–953 Situation awareness and workload in driving while using adaptive cruise control and a.
Describe stressors. Stress Stress can be defined as a negative emotional experience accompanied by various physiological, cognitive, and behavioral reactions.
Research Paper Critical Analysis Research Paper Critical Analysis 10 ways to look at a research paper systematically for critical analysis.
Chapter 4 Hybrid Methods
Ergonomics (Human Integrated Systems). 2 Aim of Lecture To introduce the ergonomics approach – its breadth of coverage To understand the guiding principles.
Introduction to psychological testing
What the ACCA Examiners said Sarah Colley, FCCA
Please read this before using presentation This presentation is based on content presented at the Industry Forum on Reducing.
Quality Education for a Healthier Scotland Finding common ground: Human factors, attitudes and behaviour in different NHS contexts Dr Vivien Swanson Programme.
1. Human – the end-user of a program – the others in the organization Computer – the machine the program runs on – often split between clients & servers.
Instructional Design Brian Newberry. Instructional Design Instructional Design is a systematic process for the creation of educational resources.
Thinking Actively in a Social Context T A S C.
Information Literacy in the workplace: implications for trainers By Dr. Mark Hepworth Department of Information Science Loughborough University.
University of Palestine software engineering department Testing of Software Systems Fundamentals of testing instructor: Tasneem Darwish.
Stress Management FOR ACCOUNTANTS WRITTEN AND PRESENTED BY: TRACY A. BROOKS ACCOUNTANT.
BASIC PRINCIPLES IN OCCUPATIONAL HYGIENE Day ERGONOMICS.
Can drivers teach themselves? Ian Edwards Director eDriving Solutions.
Human-centered Design Methodology Petra Badke-Schaub Peter Lloyd Remko van der Lugt Norbert Roozenburg Design Theory and Methodology Faculty of Industrial.
Cognitive demands of hands-free- phone conversation while driving Professor : Liu Student: Ruby.
Ecological Interface Design
Griffith Aerospace Safety Centre Training Interventions for Managing Startle During Unexpected Critical Events Wayne Martin Griffith University Aerospace.
HEA Conference June 22nd – 23rd 2010 Shaping the Future: Future Learning It’s all in the words: the impact of language on the design and development of.
The Taxonomy Table (Anderson and Krathwohl, 2001) Knowledge Dimension The cognitive Process Dimension Remember Understand ApplyAnalyseEvaluateCreate Factual.
Human-Computer Interaction: Who is General Failure and Why is He Reading Drive A? Dr Jay Burmeister QSITE ACEC 2006.
Thematic Analysis and General Structure. Pick one of the following student issues. How might you analyse it? Deciding which University to go to Deciding.
INFORMATION TECHNOLOGY IN A GLOBAL SOCIETY
LEVEL 3 I can identify differences and similarities or changes in different scientific ideas. I can suggest solutions to problems and build models to.
1 IE 590D Applied Ergonomics Lecture 26 – Ergonomics in Manufacturing & Automation Vincent G. Duffy Associate Prof. School of IE and ABE Thursday April.
Let’s Ride! Cycling Community Initiation. Introduction.
Learning Objectives To know the alternative NON financial reward packages To evaluate the alternative NON financial reward packages Evaluate how non financial.
Philosophy of the Math Department. Mathematical Literacy  All students must be mathematically literate  They must perform in the workplace  They will.
1 Research methods and models of driver behavior studies.
Project Based Learning
OCR Diploma Level 2 Unit 2 Maintaining effective working relationships with colleagues and customers.
‘Creating Good Work Through Effective Design’ Speaker’s Name: Janice Batt - Safe Work Australia Stream: Health and Safety Combined.
HUMAN FACTORS FOR INTERIOR ARCHITECTURE
Introduction to Work and Organizational Psychology Gerhard Ohrband 9 th lecture Work environments and performance.
Introduction to Work and Organizational Psychology Gerhard Ohrband 11 th lecture Safety at work.
1 ISE 412 ATTENTION!!! From page 147 of Wickens et al. ATTENTION RESOURCES.
U SER I NTERFACE L ABORATORY Situation Awareness a state of knowledge, from the processes used to achieve that state (situation assessment) not encompass.
ACE TESOL Diploma Program – London Language Institute OBJECTIVES You will understand: 1. A variety of interactive techniques that cater specifically to.
Chapter 4: Stress.
Workplace sociology Gerhard Ohrband 4 th lecture Personnel selection.
Workload and Performance Yerkes-Dobson law Low arousal  ________________ Moderate arousal  ____________ Overarousal  _______________ ISE
PSYCHOLOGY UNITS 1 & 2 ORIENTATION DAY 2015/2016.
Ergonomics/Human Integrated Systems (Project 02)
SAVE-IT SAfety VEhicles using adaptive Interface Technology Phase 1 Research Program Quarterly Program Review Task 4: Distraction Mitigation John D. Lee.
Special Topics on HMI and Behavioural Aspects Anabela Simões Universidqde Técnica de Lisboa FMH.
Organizational Psychology: A Scientist-Practitioner Approach Jex, S. M., & Britt, T. W. (2014) Prepared by: Christopher J. L. Cunningham, PhD University.
Decision Making ET 305, Spring 2016
Reclaiming generalism An international perspective.
Stress and Stress Management Miss Campbell A2 Psychology in Sport.
Analysing different levels of sporting performance.
Part 1 Being professional
MANAGERIAL ECONOMICS is a social science that helps to explain how resources such as labor, capital, land and money can be allocated efficiently.
HUMAN ERROR AND HUMAN PERFORMANCE.
Working Memory & Learning
CRMSG meeting 18th March 2010.
BASIC PRINCIPLES IN OCCUPATIONAL HYGIENE
Chapter 4 Hybrid Methods
WRITE TO COMMUNICATE.
Sybert Stroeve, Henk Blom, Marco van der Park
Training programme MODULE III Project number BE02-KA
Presentation transcript:

MENTAL WORKLOAD ASSESSMENT

Learning objectives Understand the difficulties in defining mental workload. Give an account of why the discussion of mental work load is useful Critically and comparatively evaluate the different ways of assessing mental workload. Have a range of examples of the measurement of mental workload in different real world setting of your choice.

WHAT IS MENTAL WORKLOAD? The mental stress and strain of being busy at work Excessive ‘mental workload’ often leads to errors Mental Workload’ is important in the operation of Safety critical systems

Workload as a construct Is it something we can measure. Is it like mass or someone’s temperature Is it an idea that can be used to summarise many other things ~ a short hand Is it something that links different issues? Is it a key idea in Orgnomics

Examples of ‘mental’ tasks Vigilance Problem recognition and diagnosis Planning and action Prioritisation Remembering to do things Rapid integration Coping with the unexpected

Mental workload in real life Not a new idea –Pilots –GPs –Design team These examples show different facets of mental workload What are the consequences of high mental workload in these situations

Workload as an organisational issue Training Development Management style Equipment Task organisation

Defining mental workload Not easy –A working definition might be ‘the real and perceived increase in task difficulty caused by any factors that impair decision-making planning and reasoning and other mental tasks concerned with the job in hand’. Tautological The importance of context

Generic measures of Mental workload Generic measures are poor as they ignore context. For example, same plane, same pilots, different routes. Workload is highly context dependent

FACTORS THAT IMPACT UPON OPERATOR ‘MENTAL WORKLOAD’? Skill levels Operating rules and procedures Operating conditions Staffing levels Task allocation Organisational expectations

Measuring mental workload Task analysis Secondary tasks Physiological correlates Task performance over a busy time Subjective ratings Measuring mental workload over a busy time

Classic task analysis A decompositional analysis of operators tasks Advantages – anchored in context Disadvantages – does not deal well with high levels of task.

Quasi computational Metrics Attempt to make generic measures. NASA TLX is one example Poor validity in real world situations Advantages – the process is enlightening even if the result is subjective and possibly misleading. Disadvantages – they do away with context which is the main thing.

A note on the mental workload literature Large and reef like (some of it is very pretty but much of it is dead!) The approaches have various faults, but the d to do away with context. Or a wish lists, sting the obvious and then failing to deal with a problem. Review them critically

Illustrative Bibliography Bainbridge, L (1978) Forgotten alternatives in skill and workload. Changes in cognitive processes with the development of skill, and the implications for mental workload. Ergonomics, 21, Simultaneously published as: (1977)Forgotten alternatives Bainbridge, L, (1974) Problems in the assessment of mental load) The adaptation of cognitive processes to task demands and mental capacity: some reasons for the lack of correlation between objective and subjective mental workload. Le Travail Humain, 37 (2), Problems in the assessment of mental load Bainbridge, L (1989) Development of skill, reduction of workload. () Described by title. In Bainbridge, L. and Ruiz Quintanilla, S.A. (eds.), Developing Skills with Information Technology, Wiley, pp Development of skill, reduction of workload Moray, N. Johansson, J. Pew, R. Rasmussen, J. Sanders. A.F., & Wickens, C.D. (1979) Mental Workload, It’s theory and measurement. New York. Plenum Press. O’Donnell. R.D, & Eggemeier, F.T., (1986) Workload Assessment methodology, In Boff, K., Kaufman, L., &Thomas, J., (eds) Handbook of perception and Human Performance, Vol II (pp42-1 pp new Your, Wiley. Schvaneveldt, R.W., Gomez R.L, & Reid, G.B, Recent unpublished report from New Mexico and Arizona State Universities and Armstrong Laboratories, Wright Patterson AFB, de Waard, D, (1996), The Measurement of Drivers' Mental Workload ISBN Paperback, 198 pages Published by the Traffic Research Centre (now Centre for Environmental and Traffic Psychology), University of Groningen.

An important thing to remember Which comes first? The definition? The method of measurement? The technical problem? The organisational problem? And how do these last to things differ or are they really the same. Are we interested in high work load only.

Driving a car. When learning to drive. Variation of familiar route while trying to have telephone conversation. Digital versus analogue speedometer. Car running badly in heavy traffic. Driving van through icy mountain roads.