Search found 6 matches

by Zahra
28 Apr 2015, 12:14
Forum: BCI Systems - User Applications
Topic: SSVEP-Based BCI
Replies: 11
Views: 3896

Re: SSVEP-Based BCI

Thanks Boulay, yeah I have read a lot about the frequencies I can make within the range that my monitor's refresh rate allows me. Now my only problem is how to generate these frequencies. My virtual world is in VRealbuilder and I have to generate the stimulus in it, since I can't have another progra...
by Zahra
26 Apr 2015, 14:42
Forum: BCI Systems - User Applications
Topic: SSVEP-Based BCI
Replies: 11
Views: 3896

Re: SSVEP-Based BCI

That's one of my big concerns, I want to have some lamps to flash in the VR world, I don't have time to use LEDs and I'm not professional in programming them. I need to either : . Put four flashing lamps around the virtual world page which have the camera's coordinates and move with it while navigat...
by Zahra
26 Apr 2015, 02:08
Forum: BCI Systems - User Applications
Topic: SSVEP-Based BCI
Replies: 11
Views: 3896

Re: SSVEP-Based BCI

I tried to find a way not to use BCI2000 and just use Emotiv and MATLAB,
but it seems to be harder than using BCI2000

Do you know anyone who has worked on this?
I mean connecting Emotiv directly to MATLAB.

Thank you.
by Zahra
20 Apr 2015, 02:44
Forum: BCI Systems - User Applications
Topic: SSVEP-Based BCI
Replies: 11
Views: 3896

Re: SSVEP-Based BCI

My preferance is to do all this asynchronously, so it's going to b harder..

How can I find that MATLAB-based Emotiv library?

And also, I need to give the user a feedback, right? Is it better to be just a sound or I need to do something visually too?

Thanks a lot.
by Zahra
18 Apr 2015, 12:51
Forum: BCI Systems - User Applications
Topic: SSVEP-Based BCI
Replies: 11
Views: 3896

Re: SSVEP-Based BCI

Hi Boulay, Thanks for the response. Yes, VRealmBuilder is MATLAB-based. Can you explain what you mean by doing the signal acquisition from the EPOC in MATLAB? I can read the data recorded by Emotiv which is connected to BCI2000, in MATLAB, by converting .dat files to .mat You mean there's no nead fo...
by Zahra
17 Apr 2015, 03:29
Forum: BCI Systems - User Applications
Topic: SSVEP-Based BCI
Replies: 11
Views: 3896

SSVEP-Based BCI

Hi all, I am working on a BCI system in which the user navigates in a virtual world using four commands with four specific frequencies to evoke the SSVEP. I'm recording the EEG using Emotiv EPOC and my virtual world is built in the VrealmBuilder and I have to do the signal processing in MATLAB. I ne...