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Journey2PhD

EEG electrode placement for P300, Y02-M08-D04

Sa, 04.04.2015
Year 2, Month 8, Day 4
(1 tahun, 7 bulan dan 4 hari telah berlalu)

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EEG electrode placement for P300.

From Gerwin Schalk, in BCI2000 forum (if 8 channels):
– left:   P3, PO7,
– right:  P4, PO8,
– middle: Fz, Cz, Pz, Oz
See
http://www.bci2000.org/phpbb/viewtopic.php?t=390

Easy Cap, in lab.
– left:   F3, C3, P3, O1, TP9
– right:  F4, C4, P4, O2, TP10
– middle: FPz, AFz, Fz, FCz, Cz, Pz
The configuration of 16 electrodes is from Markus Kroesen’s Bachelor Thesis, 2013, University of Oldenburg
“Vergleich verschiedener EEG-Verstärker zur Steuerung von Brain-Computer Interfaces”
http://www.easycap.de/easycap/e/products/products.htm
note: Markus Kroesen was developing P300 based BCI speller, with EasyMotiv (Easy Cap + modified Emotiv)

From discussion with Mr. A:
– left:   O1
– right:  O2
– middle: Pz
See
https://drhdrdro.wordpress.com/2013/12/18/todo-y01-m04-d18/
http://drhdrdro.blogspot.com/2013/12/todo-y01-m04-d18.html

It seems that P3, P4, O1, O2, and Pz are important in P300.
And O1 and O2 can be replaced by Oz.

Previous post about EEG electrode placement for P300
https://drhdrdro.wordpress.com/2014/08/22/eeg-electrode-placement-for-p300-y01-m12-d22/
http://drhdrdro.blogspot.com/2014/08/eeg-electrode-placement-for-p300-y01.html

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Easymotiv = Easy Cap and modified Emotiv
http://github.com/SmartphoneBrainScanner/smartphonebrainscanner2-hardware/blob/master/easycap/build_instructions.md

Easymotiv:
https://drhdrdro.wordpress.com/2014/03/05/todo-y01-m07-d05/
http://drhdrdro.blogspot.com/2014/03/todo-y01-m07-d05.html
https://drhdrdro.wordpress.com/2014/02/24/todo-y01-m06-d24/
http://drhdrdro.blogspot.com/2014/02/todo-y01-m06-d24.html

Well, it is time consider mBrainTrain, instead of Easymotiv
https://drhdrdro.wordpress.com/2014/08/01/todo-y01-m12-d01/
http://drhdrdro.blogspot.com/2014/08/todo-y01-m12-d01.html
https://drhdrdro.wordpress.com/2014/03/26/todo-y01-m07-d26/
http://drhdrdro.blogspot.com/2014/03/todo-y01-m07-d26.html

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mBrainTrain:
http://www.mbraintrain.com/

mBrainTrain Smarting Easy cap: RBE-24
– left:  FP1, F7, FC1, C3, T7, CP1, CP5, TP9,  P3, O1
– right: FP2, F8, FC2, C4, T8, CP2, CP6, TP10, P4, O2
– middle: AFz (DRL/GND), Fz, FCz (CMS/REF), Cz, CPz, Pz
reference: FCz  (CMS)
ground: AFz  (DRL)
Sorted channels (1-24): FP1;FP2;Fz;F7;F8;FC1;FC2;Cz;C3;C4;T7;T8;CPz;CP1;CP2;CP5;CP6;TP9;TP10;Pz;P3;P4;O1;O2
RBE = Real-Behavior-EEG

note:
– O1, O2 and Pz are there, like Mr. A’s suggestion
– Oz are not there
– Fz, Cz, Pz are there, like Gerwin Schalk’s suggestion
– P3 and P4 are there, like Gerwin Schalk’s suggestion
– P7 and P8 are not there

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EEG electrode placement summary, in August 2014
http://saptocondro.wordpress.com/2014/08/23/eeg-electrode-placement-summary-august-2014/
http://iscabrainrobot.blogspot.com/2014/08/eeg-electrode-placement-summary-august.html

CMS and DRL for EEG electrodes:
– CMS = Common Mode Sense, active electrode, used as reference (REF)
– DRL = Driven Right Leg, passive electrode, used as ground (GND)
http://saptocondro.wordpress.com/2014/02/11/cms-and-drl/
http://iscabrainrobot.blogspot.com/2014/02/cms-and-drl.html

standard EEG 10-20 system:
http://de.wikipedia.org/wiki/10-20-System
http://en.wikipedia.org/wiki/10-20_system_(EEG)
http://saptocondro.wordpress.com/2012/01/01/standard-10-20-system-eeg-me/

My previous experiment on steady-state evoked potential (SSVEP):
Condro, 2010, “Improvement of Response Times in SSVEP-based Brain-Computer Interface”. Master Thesis. University of Bremen.
http://saptocondro.wordpress.com/tag/thesis/
http://iscabrainrobot.blogspot.com/2010/01/improvement-of-response-times-in-ssvep.html
http://saptocondro.wordpress.com/2013/12/06/ssvep-electrode-position-on-my-head/
http://iscabrainrobot.blogspot.com/2013/12/ssvep-electrode-position-on-my-head.html

SocMed notes:
http://twitter.com/saptocondro/status/578589560067764224
http://www.plurk.com/p/ku3het
https://drhdrdro.wordpress.com/2015/03/20/todo-y02-m07-d20/
http://drhdrdro.blogspot.com/2015/03/todo-y02-m07-d20.html

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EEG electrode placement for motor imagery.
without picture:
https://drhdrdro.wordpress.com/2015/04/03/eeg-electrode-placement-for-motor-imagery-y02-m08-d03/
http://drhdrdro.blogspot.com/2015/04/eeg-electrode-placement-for-motor.html
With picture:
https://drhdrdro.wordpress.com/2013/09/11/eeg-electrode-placement-for-motor-imagery-y01-m01-d10/
http://drhdrdro.blogspot.com/2013/09/eeg-electrode-placement-for-motor.html

EEG electrode placement for mu wave
https://drhdrdro.wordpress.com/2014/08/19/eeg-electrode-placement-for-mu-wave-y01-m11-d19/
http://drhdrdro.blogspot.com/2014/08/eeg-electrode-placement-for-mu-wave-y01.html

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Tagged:
http://saptocondro.wordpress.com/tag/electrode/
https://drhdrdro.wordpress.com/tag/electrode/

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Setelah membuka-buka catatan mengenai posisi elektroda, aku berpikir untuk memperbaharuinya. Ada beberapa hal yang perlu ditambahkan mengenai posisi elektroda EEG untuk P300, yaitu penggunaan mBrainTrain Smarting, sebagai mobile EEG amplifier. Ada posisi elektroda RBE-24 dari Easy Cap yang digunakan untuk mBrainTrain.

Bremen, 4 April 2015

iscab.saptocondro

Darah Juang Doktoral — http://drhdrdro.blogspot.com/2015/04/eeg-electrode-placement-for-p300-y02.html

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About iscab.saptocondro

Ignatius Sapto Condro Atmawan Bisawarna (iscab.saptocondro) Blogger, Engineer. I was born in Bandung, Indonesia, and has spent 25 years of my life there. I worked in Semarang, Indonesia, and then continued to study in Bremen, Germany. I work in Germany until I find myself. Well, now, I am a PhD student in Oldenburg, Lower Saxony or Niedersachsen, Germany.

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  1. Pingback: EEG electrode placement summary, April 2015 « Sapto Condro loves Science and Technology - April 18, 2015

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