Re: More visual entrainment data

Chip Audette <[email protected]>
Newsgroups gmane.comp.science.openeeg.general
Message-ID <[email protected]>
Continuing my work with visual entrainment, I used a photocell with my Arduino to measure the actual blink rate produced by my computer...

http://eeghacker.blogspot.com/2014/05/measuring-video-blink-rate-with-arduino.html

It showed that my computer cannot generate steady blinking faster than 10 Hz.  As a result, I don't have a chance of entraining brain waves at faster than 10 Hz.  This is important if I plan on using this setup as the basis for BCI based on visual entrainment.

It's pretty cool what you can do with a $1.50 photocell.

Chip


From: Chip Audette
Sent: Sunday, May 04, 2014 6:00 PM
To: [email protected]
Subject: More visual entrainment data

I've resumed my exploratory work with visual entrainment...aka, steady-state visual evoked potential (SSVEP).  I'm headed towards making Brain-Computer Interface (BCI) based on it. In my latest post, I've induced brainwaves at different frequencies using movies on my computer. If you're interested, you can check it out here:

http://eeghacker.blogspot.com/2014/05/visual-entrainment-blinking-screen.html

I'm really excited for the next steps...two blinking frequencies at the same time.

Has anyone else tried SSVEP for use as a BCI?

Chip

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