Though LifeRing is not my cup of tea, since it uses a lot of "sharing" and relies on meetings, the first chapter in LifeRing founder Martin Nicolaus' book, "Empowering your Sober Self" talks of addiction as conflict. The divided self, along with the "sober self" and "addicted self" analogy is eerily reminiscent of the I/IT split in AVRT, and although he did not mention AVRT, I know that the author must be aware of this. He seems to have done his homework on this idea, and his book was written 13 years after the RR book.
From the Table of Contents:
CHAPTER ONE: A PERSON ADDICTED IS A PERSON IN CONFLICT
The Divided Self
The Divided Self is a Clinical Reality
Addictive Substances Hijack the Brain
The Impact on Our Lives
“A” (Addicted Self) Versus “S” (The Sober Self)
A Radical Simplification
In Conflict Lies Hope