Lynn K. wrote:
http://www.webtrail.com/petbehavior/biosonic.html

Of course the pioneer of this use of sound in training was John
Fisher. I'm wondering when Campbell started selling these
devices; there was certainly no information on his web site
several years ago when I was reading everything of his that
I could get my hands on.

More info on this use of sound in training:

http://www.napoleon.org.uk/training/nonreward.htm

Note "In operation, a fundamental premise of the discs is that
they should never be used to startle or threaten a dog, rather
they are used to communicate calmly but very definitely to the
dog that the behavior he is about to perform will fail to earn
him the reward he is expecting."

In short, that technique is referred to by behaviorists as
"negative punishment," which is defined as withdrawing something
that the dog wants.

There's a lot of stuff in JH's manual that is clearly from other
people, like Campbell's timing of praise and David the Dogman's
technique that JH calls "The Family Pack Leadership Exercise",
but I always thought he got it 2nd hand from Behan because
he warps those techniques enough to make them ineffective.

Second-hand from somewhere, anyway.

Kinda like the old "telephone" game.

Yes.

Dianne