Previous research has shown that rapid vocal repetition of a one-word version of negative self-referential thought reduces the stimulus functions (e.g., emotional discomfort and believability) associated with that thought. The present study compares the effects of that defusion strategy with thought distraction and distraction-based experimental control tasks on a negative self-referential thought. Non-clinical undergraduates were randomly assigned to one of three protocols. The cognitive defusion condition reduced the emotional discomfort and believability of negative self-referential thoughts significantly greater than comparison conditions. Favorable results were also found for the defusion technique with participants with elevated depressive symptoms.
Masuda, Akihiko; Twohig, M. P.; Stormo, A. R.; Feinstein, A B.; Chou, Y.; and Wendell, J. W., "The effects of cognitive defusion and thought distraction on emotional discomfort and believability of negative self-referential thoughts" (2010). Psychology Faculty Publications. Paper 96.