a user centred approach to supporting people with cognitive dysfunction prof. alan newell, mbe,...
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A user centred approach to supporting people with cognitive
dysfunction
Prof. Alan Newell, MBE, FRSE,
School of ComputingUniversity of DundeeScotland.
www.computing.dundee.ac.uk
Research at Dundee University
Newell, A.F, Gregor P, Alm N. (2006). HCI for older and disabled people in the Queen Mother Research Centre at Dundee University.
CHI 2006 HCI Overview. Wednesday 26th 16.30
Models of disability
• Medical Model– Clinical setting – “Curing the sick”
• Social Model– Domestic (& day care) settings– Supporting the person
User Sensitive Inclusive Design
• Variety & lack of representative users
• Exact characteristics of users needed
• Conflicts of interest between groups
• Communication with users a challenge
• Ethical issues
Novel approaches• Users as members of the design team• Social gatherings of users & designers• Attending day centres as volunteer
• Use of Theatre– Newell, A., Morgan, M., Carmichael, A., Gregor P.
(2006) Theatre as an intermediary between users and HCI designers. CHI 2006 Experience Report. Tuesday 25th 11.30
Variability of users
Design for dynamic diversity
Older users
• Fit older people
• Frail older people with disabilities
• Disabled People who have grown old
Multi minor impairments
Cognitive Overload• Everyone
– Fighter pilot, young executive, old people– Time pressures, drugs
Ordinary & Extra-Ordinary Human Computer Interaction
• Support cognitive capacity or• Reduce cognitive load.
Other aspects affecting cognitive performance
• Attention
• Reduced other abilities:– visio-spacial– Hearing– Verbal – Language and vocabulary – Of coping with complexity
Aesthetics
Disabled people
and
people with cognitive dysfunction
do not necessarily
have little or no
aesthetic sense !
Influence of graphic artists
Evaluation
• Medical methods– Large “n”, – matched control groups– double blind
• Traditional HCI– Large “n”,– Carefully controlled,– Generic/representative results
New evaluation techniques• Appropriate to our research
• Valid within our context
• Do not disadvantage potentially useful systems
• Efficacy can be justified
Desperately needed !
Novel approaches needed
• Variability of users
• Dynamic nature of cognitive functioning
• Multiple minor disabilities
• Aesthetics
• Evaluation Techniques
Looking forward to the
rest of the workshop.