Does any one know if the Brain wave patterns of Chess players have ever been recored ?

I haven't encountered one so far. But I' d like to know. ^_^ Please inform me when you've found an answer to this. Thanks in advance. God bless you!

http://www.scientificamerican.com/article.cfm?id=brain-study-shows-grandma

Here's a study of grandmasters. Not that there are many of those around.

http://revistas.ucm.es/psi/11387416/articulos/SJOP0505220238A.PDF

Google is a wonder.