E.R.I.C.A.Electroencephalographic Resuscitation Index Computer Aided

Gianluca.Moro @ unipd.it

Technical Overviewhttp://www.giammy.com/files/bci.pdf

The Goal:An Open and low cost

solution forEEG monitoring in

Pediatric ICU

EEG reading: the challenge

EEG reading: what is it?

EEG reading: almost clear

Clear! But ... the meaning???

Professional Setup

Consumer Setup

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Professional vs. ConsumerQuality/Cost

Professional ConsumerApplication

Professional YES Work in progress

Consumer WHY? YES

Project Overview: the Goal• Where: Pediatric ICU• Usage: Continuous bedside EEG monitoring• Requests:

– Medical validation– Available for each patient– Low cost– Easy to use

Project Overview: the final setup• EEG:

– dry sensor technology– Setup easy and confortable

• User Interface– Usable by nurse and even relatives– Inspired to ASG (Augmentative Serious Game)

theory

Current choices• EEG:

– Emotiv Epoc

• User Interface– Linux PC or Android tablet

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A feasibility test• EEG acquisition device: Emotiv Epoc• Preelaboration: Linux box• TCP/IP communication channel to

– OpenVibe– Matlab– Android– …

• Elaboration• The question is: can Emotiv record evoked potential?

Acquisition device• Emotiv Epoc

– Dry sensors, wireless connection– HID (Human Interface Device) standard

communication protocol– Packet encrypted (AES)– Raw data stream available via SDK– Independent/unofficial projects (EmoKit) exists on

the web to decode the realtime stream

Preprocess• Realtime acquisition box: a box used to acquire

realtime data and send to the desired application for analysis or other:– a linux box (HID is supported in default kernel)– data decoding – Open a TCP/IP socket for data streaming to

the application

Process• When data are available, can be sent to

specific software …– OpenVive (to test EEG elaboration algorithms) – MatLab (with the EEGlab suite)– Quick and dirty Python tests :-)– Android specific app

… to OpenVibe

Emotiv data acquired and visualized with OpenVibe

… to EEGlab

Data imported to EEGlab, with Oddball paradigm events

Oddball paradigm in Python

2 seconds acquisition around a rare event (sample 128): a P300 evoked potential?

Conclusion• We can setup a measure chain from data to elaboration• With consumer devices and open source or commercial tools• For details: http://www.giammy.com/files/bci.pdf

• Can Emotiv record a P300 evoked potential? • Ready to pass on to neurological signal elaboration experts!