What was I thinking of? In my earlier reply to this, I said "gamma"
but clearly I was thinking of beta!!!
In <37110eb1.33771056 at news.ox.ac.uk> james.teo at chch.ox.ac.uk (Grushnik)
>>On Sun, 11 Apr 1999 21:03:17 +0200, Wolfgang Schwarz
><wschwarz at zedat.fu-berlin.de> wrote:
>>There are gadgets that claim to cause "Brainwave synchronisation"
>>(e.g. the once famous "Brain Machine" or even the sample editor "Cool
>>Edit"). That should lead to trance states or something like that
>>(never works in my case though). Is that just nonsense then, or what
>>are these gamma- and thetawaves they allegedly induce?
>>"Gamma and theta waves" describe states which are easily recognisable
>by their waveform on their EEG. These states are occur in sleep.
>I've never heard of those brain synchronisation things.