What is the difference between cVEP and SSVEP?
YuminosukeSato
Japan
in Software
I think both cVEP and SSVEP will shine light, but what's the big difference?
Comments
SSVEP is steady state, where the flashing on the screen just uses a single frequency. Each 'button' or command area on the screen needs to be flashing at a different rate. And enough different from the other button frequencies, that your FFT or filters can distinguish each response.
cVEP is code based, using a different pseudo-random sequence of flashes per button / area of the screen. It provides much more flexibility and operator choices than the SSVEP. Because more buttons can be used. MindAffect is the principle BCI in this area.
If I acquire EEG with mindaffect bci, can I apply machine learning without any preprocessing such as fft?
I answered your similar question previously:
https://openbci.com/forum/index.php?p=/discussion/comment/17998/#Comment_17998
MindAffect does it's own pattern recognition for the unique pseudo-random light pulse patterns assigned to each unique on-screen button. Therefore no external signal processing need be done.
Can CSP be utilized for EEGs taken with cVEP?
@YuminosukeSato, hi.
This is the third time I've answered your similar question. Have you read and understood the previous answers?
MindAffect does it's own pattern recognition for the unique pseudo-random light pulse patterns assigned to each unique on-screen button. Therefore no external signal processing need be done.
Regards, William
Thank you for your multiple responses.