placing electrode sensors on the scalp
hello guys,
i am a master student from Egypt, and my thesis is on pattern recognition of EEG to control upper limb prosthesis. i decided to buy openbci , and i have a question about the electrodes.
should i shave my hair for using the electrodes you sell ? and if yes which type of electrode can i buy to overcome this issue ?
Comments
No, EEG electrodes do not require shaving the head. :-) The two videos below are a good tutorial, with Tom Collura and Bill Mrklas of Brainmaster. Note: the placement video shows the use of "NuPrep" abrasive solution on the site before the electrode is attached.
The TI ADS1299 amplifier chip we are using has an input impedance of 1 gigaohm. With such a high impedance, abrasive preparation is not really required. It was more an issue with older amps having much lower impedance. This link explains why newer amps do not require this.
http://wwe.eeginfo.com/research/ElectrodeImpedance.pdf
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EEG 10-20 location system.
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Placing the sensors with Ten20 paste.
William