I am working on a SSVEP project and i want to develop a system to analyse EEG signals taken from the OpenBCI board. i am expecting to use some algorithms such as FFT algorithms to process the EEG sign

However, also consider moving the reference (SRB2) site around, if that results in more microvolts of your SSVEP. For example, you might try reference at Cz or Fpz for example. Active electrode at Oz,

A few times I've suggested using OpenBCI_GUI or Brainbay to look at your signals on the FFT or Spectrograms. So you can try making adjustments in real time. That is, change something and see the effec

Nek, great, looks like your first image shows solid SSVEP in each band you tried.

I'll mention Chip @chipaudette on this thread again, in case he might have some comments. He's our expert on SSVEP.

Nek, hi. What do you see with OpenBCI_GUI FFT plot as you sweep the SSVEP slowly from 10 Hz upward? Any evidence of a small peak in the FFT that follows your driving frequency? Does your eye to LED bo

Yes, you can use a single LED to elicit SSVEP response, it just needs to be bright enough (although it doesn't have to be crazy bright) and the flashing frequency accurate.

> To me, the question is whether you can get enough LEDs together to be a bright enough or physically large enough visual stimulation to evoke SSVEP.

To partly address my own question above -- how big an area do the LEDs need to cover to evoke the SSVEP response -- I just watched a video posted by @wjcroft on a different thread.  That thread was on

That's my blog post that William linked to.  While I was able to get the flashing to work on my laptop, the same movie would not blink steadily on my other laptop.  It was very frustrating.  So, I thi

Joel Eaton in the UK has some great videos and posts on his SSVEP / MI / aBCI music projects,

I merged your question into this existing thread covering SSVEP. See @chipaudette 's blog post link above (and copied here),

Has anyone had any experience in SSVEP stimulators projects? Do you think the Aruduino is a good device to produce SSVEP stimuli in 10-50 Hz range? I tried to do that but I think that I can't produce

Processing brainwave-band detection (alpha and SSVEP), and motor control using a separate Arduino.

I was planning to add a "applications" tab to the docs, so definitely I think it's the way to go The nice things with SSVEP that were published previously could go there along with the P300

I moved your question to this thread. See the earlier links where Chip works with SSVEP. It's very close to what you are referring to.

After my success with SSVEP, I thought that I could nail ASSR on the first try.  Sadly, I was not able to see any ASSR.  I guess that it'll take more experimentation.

For example, William pointed to my post on SSVEP ("steady-state visual evoked potential).  The key with SSVEP is that it exploits the fact that the brainwaves in your visual cortex become entrain

For an example of SSVEP, see Chip's blog post

Hello,