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EEG electrode placement summary, April 2015

After experimenting with different EEG amplifiers, I got more information about different EEG electrode position. And then my summary ought to be revised. Below are the revisions in my PhD note.

In my notes, I add information about CSP spatial filter because this filter is suitable with EEG amplifiers with more than 8 electrodes. CSP is Common Spatial Filter. This filter is used for motor imagery BCI involving lateralization of hand movement: left versus right, contralateral versus ipsilateral.

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Previous EEG electrode placement summary:

The EEG amplifiers, I have used so far in my PhD study at the University of Oldenburg, as well as in my master study at the University of Bremen, are below.

  • mBrainTrain Smarting, a mobile EEG amplifier with 24 electrodes, since the second year of my PhD study.
  • gtec MOBIlab+, a mobile EEG amplifier with maximum 8 bipolar electrodes, for the third semester of my PhD Study.
  • Easymotiv, which is modified Emotiv EPOC with Easy Cap, a mobile EEG amplifier with 14 electrodes, for the first semester of my PhD study.
  • TMSi Porti 7, an EEG amplifier with 32 electrodes, for my master thesis.
  • gtec USBamp, an EEG amplifier with 16 electrodes, for my master project.
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Tulisan ini adalah revisi dari rangkuman posisi elektroda EEG untuk Brain-Computer Interface sebelumnya. Revisi dilakukan setelah mencoba beberapa EEG amplifier. Dalam revisi terdapat penambahan informasi tentang Common Spatial Pattern (CSP) sesuai catatan doktoral 24 November 2014.

Bremen, 18 April 2015

iscab.saptocondro
Darah Juang!

Brain Robot Research, a neuroscience blog — http://iscabrainrobot.blogspot.com/2015/04/eeg-electrode-placement-summary-april.html

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April 18, 2015 Posted by | Neuroscience | , , , , , , , , | 3 Comments

EEG electrode placement summary, August 2014

After reading the theses from my research mates from Uni Oldenburg, as well as Uni Bremen, I summarized some EEG electrode placements in my PhD note. So these are the links to my note.

SSVEP stands for steady-state visually evoked potential.

The idea is to minimize the number of EEG electrodes, which I am planning to use with my mobile EEG device. Putting electrodes to the scalp takes a lot of time. If 192 electrodes were put on whole scalp, it could took 1 hour or more and it would not be practical for the users. Also, analyzing the data from a large number of electrodes has a curse of dimensionality. I am planning to record using 8 or 16 or 24 EEG electrodes. Less is more! The EEG electrode placement which I need have been noted, so I just look into those specific electrode positions for my analysis, as well as, online signal processing.  

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Tulisan ini adalah rangkuman dari posisi elektroda EEG untuk Brain-Computer Interface (BCI) berbasis SSVEP, P300,  dan “motor imagery” atau gelombang mu, untuk bulan ini.

Bremen, 23 Agustus 2014

iscab.saptocondro
Darah Juang!

Brain Robot Research, a neuroscience blog http://iscabrainrobot.blogspot.com/2014/08/eeg-electrode-placement-summary-august.html

August 23, 2014 Posted by | Neuroscience | , , , , , , , , | 4 Comments