Russell;

I'm not an expert on eartones but Petra is indisposed right now so I'll tell you what I know and maybe Don can add some more.

> What precisely is happening that would cause the ear tone in the first place?

Don't know. That's a major problem in getting any consideration by science.

> What exactly lead to the conclusion that the ear tone was eq related?

It's an observed correlation.

> Why do only certain people hear the tones?

Don't know. But people's sensitivities to stimuli does vary.

> Are there statistical studies of reported “hits” that lead to a “better-than-chance” conclusion?

They're working on that. So far, not enough examples.

> Given the sheer number of eqs each day/week – why aren’t there more ear tones reported within this group alone?

They only seem to hear tones from certain areas. Or let's say they have only established that certain tones correspond to certain areas.

Roger