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Designing Software for Elderly Suffering from Cognitive Impairments

Designing Software for Elderly Suffering from Cognitive Impairments. M. PINO , M. BOULAY, AS. RIGAUD Research team EA 4468 Paris Descartes University, Broca Hospital, Assistance Publique - Hôpitaux de Paris (France ). International Conference ADI, 2012. LUSAGE user-lab.

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Designing Software for Elderly Suffering from Cognitive Impairments

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  1. Designing Software for Elderly Suffering from Cognitive Impairments M. PINO , M. BOULAY, AS. RIGAUD Research team EA 4468 Paris Descartes University, Broca Hospital, Assistance Publique - Hôpitaux de Paris (France) International Conference ADI, 2012

  2. LUSAGE user-lab AIM: the design, development and assessment of technological products and services for elderly people with cognitive impairment, and family and professional caregivers. Technological applications are used in this context: • To support elderly people with their daily-life activities • To provide healthcare and cognitive stimulation • To help caregivers better manage patient difficulties

  3. Social Assistive Robotics • Support for basic activities: organization, planning, locating objects, medication reminding • Monitoring and safety • Information and educational games to support cognitive wellness and social engagement • Simplified menu to access these services

  4. Social Assistive Robotics • Embodiment • Emotion • Dialog • Personality • Human-oriented perception • User modeling • Socially situated learning • Intentionality T. Fong, I. Nourbakhsh, and K. Dautenhahn. A survey of socially interactive robots. Robotics and Autonomous Systems, 42(3-4):143–166, 2003.

  5. Human Activity Assistive Technology Model (HAAT) (Cook and Husey, 1995) Social framework and physical environment in which the person and the AT operate Person withhis/herskills and impairments Procedure, operation or task that the person would like to achieve External enabler (device) used to overcome any contextual obstacle.

  6. PRIMO: Cognitive Stimulation software • On-line programme • Personalized set of exercises (memory, attention, judgment, executive function, etc) • Different levels of difficulty • Remote neuropsychological supervision • Maintain cognitive resources • Reinforce automatisms & implement routines • Increase self-esteem, motivation, socialization

  7. Design & Development Cycle Final Product

  8. Faucounau, V. et al., (2009). Caregivers’ requirements for in-home robotic agent.

  9. Wu et al., (2010). Robotic agents for supporting community-dwelling elderly people with memory complaints: Perceived needs and preferences

  10. Usability assessment • Usability testing : • - Ensure that systems are adapted to end-users • - No potential negative outcomes • - Allows ergonomics improvement Classical procedure : Observing how users interact with prototypes or final products to perform a set of predefined tasks under controlled conditions

  11. Evaluation criteria • Objective performance measures: - Time to complete the tasks - Number of manipulation errors - Numbers of verbal or physical help requests - Accuracy in the tasks and type of « cognitive error » • Subjective measures: - Satisfaction questionnaire

  12. First Evaluation • METHODS • 7 participants with AD (MMSE = 16-24) • Age mean 82,4 y/o • Education mean 11,5 y • 4 sessions with 15 exercices • None computer experience • RESULTS • Identification of usabilityproblemsresultingfrom the interface design • Difficulties are related to the severity of cognitive impairment • Some assistance maybenecessary • The use of a touchscreenisstronglyrecommended

  13. Select all the yellow fruits : Validate

  14. Interface modifications required • Simplifying procedures and interactions : • One-click answers • Using a touch screen • Avoiding unnecessary messages • Adjusting font and images size • Eliminating check-box • Eliminating “validation” button

  15. Second Evaluation • METHODS • 15 participants (AD = 3, MCI = 8, HC = 4) • Age mean 78,2 y/o • Education mean 11 y • 1 session with 9 exercices • Half of themhadalreadyused a computer before • RESULTS • The improved version is more intuitive and learnable • The application isadapted to personswith MCI and early AD • Still, some assistance maybenecessary • Touchscreenworksbetterthan mouse or touchpad

  16. QuoVADis – 30 juin 2011 -

  17. Discussion • The possibility of using the Interface depends on cognitive abilities preserved at MCI and early AD • Importance of attitude : confidence and motivation • Technology use: encouraging to find “their way” to use the system • Involving caregivers • Challenge: how to compensate attentional and executive deficits that affect the capacity of initiating and completing a sequency?

  18. Thank you!

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