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Eloisa Vargiu
EURECATBarcelona
Rome, July 31, 2015
Brain Computer Interfaces on Track to Home: Results and
Lessons Learnt
3
BackHome is the first European research project aimed at delivering the ambitious, but critical, step to bring BNCI
systems to mainstream markets
The Objectives To study the transition from the hospital to the home To learn how different BNCIs and other assistive
technologies work together To reduce the cost and hassle of the
transition from the hospital to the home
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BackHome is aimed at… …producing applied results, developing
o new and better integrated practical electrode systems
o friendlier and more flexible BNCI softwareo better telemonitoring and home support tools
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Practical electrode systems
Its design is completely different from all other devices and it sets a new standard of usability
The dry electrode version is based on the worldwide proven g.SAHARA electrodes
The tiny and lightweight device is attached to the EEG cap to avoid cable movements and to allow completely free movements
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Flexible BNCI softwareSmart Home Control Speller
Web Browsing, e-mail and social networksMultimedia player
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Flexible BNCI softwareSmart Home Control Speller
Web Browsing, e-mail and social networksMultimedia player
Brain Painting
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Flexible BNCI softwareSmart Home Control Speller
Web Browsing, e-mail and social networksMultimedia player
Brain PaintingCognitive Rehabilitation Games
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Home
4 in 1:DoorMotionTemperatureLuminosity
3 in 1:MotionTemperatureLuminosity
z-wave
smartphone
Raspberry pi
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Intelligent Monitoring
PP Its goal is to preprocess the data iteratively sending
a chunk c to both ED and RA according to a sliding window approach
Starting from the overall data streaming, the system sequentially considers a range of time |ti - ti+1| between a sensor measure si at time ti and the subsequent measure si+1 at time ti+1
The output of PP is a window c from ts to ta, where ts is the starting time of a given period and ta is the actual time
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Intelligent Monitoring
ED It aims to detect and inform about emergency
situations for the end-users and about sensor-based system critical failures
Regarding the critical situations for the end-users, simple rules are defined and implemented to raise an emergency, when specific values appear on c
Regarding the system failures, ED is able to detect whenever user’s home is disconnected from the middleware as well as when a malfunctioning of a sensor occurs
Each emergency is a pair <si; lei> composed of the sensor measure si and the corresponding label lei that indicates the corresponding emergency
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Intelligent Monitoring
AD Its goal is to recognize
activities performed by the user
To recognize if the user is at home or away and if s/he is alone, we implemented a solution based on machine learning techniques
The output is a triple <ts; te; l>
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Intelligent Monitoring
EN It is able to detect events to be notified Each event is defined by a pair <ti; l> corresponding
to the time ti in which the event happens together with a label l that indicates the kind of event
Currently, this module is able to detect the following events: o leaving the homeo going back to homeo receiving a visito remaining alone after a visito going to the bathroomo going out of the bathroomo going to sleepo awaking from sleep
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Intelligent Monitoring
SC Once all the activities and events have been
classified, measures aimed at representing the summary of the user’s monitoring during a given period are performed
Two kinds of summary are providedo Historicalo Actual
A QoL assessment system is also provided to assess a specific QoL itemso Mobilityo Sleepingo Mood
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Intelligent Monitoring
RA It is aimed at advising therapist about one or more
risky situations before they happen The module executes the corresponding rules, defined
by therapists through the healthcare center, at runtime
A rule is a quadruple <i; v; o; ar>
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Cedar Foundation (Belfast) Control Group: N= 5 End User Group: N=5
(1 F, M= 37 yrs ± 8.7, Post ABI M= 9.8 yrs, ±3.7) Home Users: N=3
University of Würzburg Control User Group (gel-based): N=10
(6 F, M: 24.5 yrs ±3.4) Control User Group (dry electrodes): N=10
(9 F, M: 24.4 yrs ±2.7) End User Group: N=6
(2 F, M=47.3 yrs ± 11)
End-users
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BCI can now be considered as an assistive technology
To move a technology from the lab to a real home is a very difficult task
Testing in a controlled environment is essential Data are nothing if you don’t know how to read them
A user center design approach helps in building a system accepted by end-users
A continuous assistance must be given tocaregivers
Therapists and engineers don’t speak thesame language
Lessons learned
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BackHome
Acknowledgements
Web• www.Backhome-FP7.eu
LinkedIn• BackHome-FP7-Research-Innovation
Twitter• @BackHomeFP7
Youtube• BackHomeFP7
Consortium EURECAT/BDigital Team
And also…Javier BaustistaEloi CasalsJosé Alejandro CorderoJuan Manuel FernándezJoan ProtaAlexander Steblin