Laboratory analogue investigation of defusion and reappraisal strategies in the context of symbolically generalized avoidance

The present study examined and compared the effects of 2 analogues of cognitive treatments—cognitive defusion and cognitive reappraisal—on symbolically generalized avoidance established using a basic behavioral laboratory paradigm. This back‐translation design contributes to the development and validation of principle‐based definitions of the applied constructs of defusion and reappraisal. Eighty‐eight participants first underwent basic laboratory procedures designed to establish symbolically generalized avoidance in response to an arbitrary stimulus (a nonsense word). Participants were then randomized to defusion, reappraisal, or control conditions. The response variables were (a) equivalence responding—indicative of the trained relational network and analogous to the cognitive content responsible for symbolic generalization—and (b) avoidance—the behavioral impact of symbolic generalization. A between‐groups analysis revealed that defusion and reappraisal significantly increased the odds of nonavoidance responding. Discrete‐time survival mediation analyses provided preliminary support for the classification of defusion as a functional context intervention and reappraisal as a relational context intervention.