Cognitive dissonance about thought-action fusion beliefs improves and maintains the effects of though-action fusion-specific psychoeducation

Abstract

The effects of psychoeducation on thought–action fusion (TAF) beliefs are understudied. We tested whether adding mock electroencephalography (EEG)-based computer trials that induce cognitive dissonance about TAF beliefs, prior to TAF-specific psychoeducation, would enhance and maintain the reduction of TAF beliefs. An unselected sample of 140 Singaporean undergraduates (89 females, 51 males) was randomly assigned to a combined intervention, TAF-specific psychoeducation-only, or control group. Self-report measures of TAF beliefs and cognitive dissonance about TAF beliefs were administered 4 times in the initial session, and once at 1-month follow-up. Findings included the following: (a) greatest cognitive dissonance about TAF beliefs in the initial session with the combined intervention; (b) greater reduction in TAF beliefs in the initial session in both intervention groups, compared with the control group; and (c) incremental reduction in TAF beliefs in the initial session and maintenance at 1-month follow-up with the combined intervention. Cognitive dissonance should be investigated extensively in other aspects of cognitive behavioral therapy (CBT) procedures for TAF beliefs (e.g., behavioral experiments, exposure, and response prevention) to determine whether it contributes to therapeutic change with these techniques. Our combined intervention procedure should also be examined for relevant psychopathology (e.g., obsessive-compulsive symptoms).