Entrainment of brainwaves

[G K GRAY]

In article <4l3g00$el4 at vixen.cso.uiuc.edu>, Kevin Spencer (kspencer at s.psych.uiuc.edu) writes:
>Emery Carr <ecarr at infohwy.com> writes:
>
>>I don't know if this is the right newsgroup... so steer me in the right 
>>direction if you can...
>
>>I'm searching for information about how to use binaural beats to entrain 
>>brainwave frequencies.
>
>Check out the literature on "steady-state evoked responses".  I think
>that's what you're looking for.
>
>>The only info. I have found so far is that 200hz and 210hz will cause a 
>>frequency following response of 4hz in the brain.
>
>Hmm, never heard of that one before.
>
>Kevin
>-----------------------------------------------------------
>Kevin Spencer
>Cognitive Psychophysiology Laboratory and Beckman Institute
>University of Illinois at Urbana-Champaign
>kspencer at p300.cpl.uiuc.edu / kspencer at psych.uiuc.edu
>-----------------------------------------------------------
>
>Reply to; gord at homostudy.win-uk.net

Why should we *not* expect to find a 4hz response in the brain when those
who tune musical instruments have been using this "beat" phenomenon for 
generations to perform this task, or am I misunderstanding the question?
The effect can be measured physically and organically.

Gord