Though the term itself is not used in much of the professional peer-reviewed literature, the interpersonal manifestation to which it refers appears regularly in the case study literature of the "family systems" school of psychologists, including Don D. Jackson, Jay Haley, Gregory Bateson, Virginia Satir, and Salvador Minuchin.
Reciprocal reactivity was studied by Gary Sperduto et al. in the 1970s, and it is clear from the abstract of his paper (see below) that his definitional terminology equated to that of Sullivan.