emotiv contribution

[dani_gmos]

Please I need your help.

I already downloaded BCI2000contrib.exe, but when I'm trying to install, it doesn't create any folder.
I really don't know how it works because I'm using the Emotiv EPOC headset and I read that I have to use a contributed source module but when it explains that I have to use the Neuroscan.exe I don't have any. I assume that it means like a Emotiv.exe
http://www.bci2000.org/wiki/index.php/C ... rce_Module

Please help

[mellinger]

Hi,

there are no previous reports of the BCI2000contrib installer being broken, so it might be that you are looking for the BCI2000 folder in the wrong place. That folder will be created in whichever location you choose in the installer dialog, which is not necessarily in the system's "programs" folder. Also, BCI2000 will not install itself into the Windows Start Menu, nor place a link to itself onto the desktop, as this would lead to confusion when there are multiple copies of BCI2000 installed on a machine.

In fact, the BCI2000 folder will hold data as well as programs, and it is possible to install and use BCI2000 without administrative privileges, and from temporally mounted external drives as well as from a machine's built-in hard drive. Also, multiple users may each have multiple versions of BCI2000 on their systems.

For these reasons, it makes perfect sense to install BCI2000 inside your user directory, and to use it from there. For more information, please go to the directory that is shown in the installer dialog before you click "Install", and open the "Getting Started" document that is found there.

Best regards,
Juergen

[dani_gmos]

thanks mellinger, it already works...

now I have another question.

I'm working with mu Rhythm and I followed the Mu Rhythm BCI Tutorial, because I'm trying to control a little car.
But when I try to obtain the characteristic of that signal, I mean when I get the feature plot, it doesn't give me a good discrimination between the rest state and the left hand imaging movement. Of course I'm using the EPOC headset
I have another question too.
How do I use the spatialfilter matrix when I configure the online feedback.

[mellinger]

When you don't get good discrimination for imagined movement, try using actual movement first. When prompted for movement, move your fingers as if you were rotating a tennis ball in your hand.

Once you get good discrimination for actual movement, switch back to imagined movement.

The SpatialFilter matrix gives you great flexibility when extracting brain signals from a large number of sensors. However, this is fine-tuning. You may be able to somewhat improve performance over using no spatial filter, or a CAR filter, but you should stick to the "None" and "CAR" options first. When you have control using one of these, you can try more sophisticated spatial filtering.

[ra_lums]

Hi dani and Juergon,

Can you kindly tell me that were you people able to get mu rythm from EPOC headset?
Because I'm trying so but ain't getting anything.


Waiting for your reply

Regards,
Habib

[mellinger]

Hi Habib,

the mu rhythm originates from the sensorimotor area close to electrode locations C3/C4. The EPOC headset does not cover those locations, so it is unlikely to obtain mu rhythm signals using that headset.

More information about the mu rhythm and electrode locations may be found at:
http://www.bci2000.org/wiki/index.php/U ... _Mu_Rhythm
http://www.bci2000.org/wiki/index.php/U ... ment_Setup

Regards,
Juergen