I have been interested in this technique for a deeper understanding of the mental model of graphic designers and managing procedures of their studio management, but all descriptions of the technique I have found are resumed in Bill Moggridge's book "designing interactions"
This form of meditation was popular in the seventies when I experienced it in the Unitarian Church and public middle school settings. I can't suggest any scholarly readings but an online search including the Unitarian Church showed some interesting results (see attachment)
Thank you Alma Rose Snyder for your interest in my question. This technique that has the same name is different. It focus on education, creativity stimuli and psychologic recovery. This is not what I am looking for.
The technique invented 1973 by Larry Tesler and Tim Mott were used for user experience investigation in technology innovation situations. It is related to user research, mental models and usability.
I have progressed in my research regarding the technique and I am applying it with design managers. Hopefully, I will publish something about it in 2017 (HCII).
best regards,
Adriano