Hello,
I read documentation on where to put electrodes on the head if we want to have electrical signals (catch by the ModularEEG).
If we put one electrode on the Cz area, one on the forehead (ground electrode) and one on the nose (reference electrode), we can detect foot mouvement.
But where exactly, should we put the electrode on the head to have the Cz area? Is it in the middle of the head? For the forehead, is it also in the middle of the forehead?
For detecting hand movement? Where exactly should we put electrodes? (C3 et C4 areas)
Is the areas different from people?
If there are interference with wifi, should we have problem to detect signals?
Thank you for your help,
Coonecting electrodes on the head
Re: Coonecting electrodes on the head
fleur wrote: But where exactly, should we put the electrode on the head to have the Cz area? Is it in the middle of the head? For the forehead, is it also in the middle of the forehead?
For detecting hand movement? Where exactly should we put electrodes? (C3 et C4 areas)
Is the areas different from people?
On the picture you have the relative positions of electrodes.
You have no interference with Wifi or ohter radio frequency because the used frenquencies are above 1 Mhz and EEGfleur wrote: If there are interference with wifi, should we have problem to detect signals?
signals are under 200 Hz. There can be interference with electrical signals (50Hz or 60Hz) but in all *good* EEG acquisition system there is filter for those bands. ModEEG as a *good* EEG acq system performs a filter for that.
Naëm Baron
CV : http://bee-oh.esiea-ouest.fr/baron/index.xml
CV : http://bee-oh.esiea-ouest.fr/baron/index.xml
Re: Coonecting electrodes on the head
Thank you nbaron for replying !!
Yann
You can filter the signals inside OpenViBE as well.nbaron wrote: You have no interference with Wifi or ohter radio frequency because the used frenquencies are above 1 Mhz and EEG
signals are under 200 Hz. There can be interference with electrical signals (50Hz or 60Hz) but in all *good* EEG acquisition system there is filter for those bands. ModEEG as a *good* EEG acq system performs a filter for that.
Yann
Re: Coonecting electrodes on the head
Thank you for your help