A cognitive bias modification for interpretation (CBM-I) task with individuals experiencing clinical levels of generalised anxiety: a single case series
Objectives The study investigated the efficacy of an online multi-session cognitive bias modification for interpretation (CBM-I) package for reducing worry and negative interpretive bias in individuals presenting with clinical levels of generalised anxiety. Design Single case-series using a non-concurrent multiple-baseline across participant design with follow-up. Method Seven patients referred from Psychological Wellbeing Services completed a seven day CBM-I programme at home via the internet. The CBM-I task trained the participants to imagine ambiguous scenarios and to interpret them in a benign or positive manner. To assess change in worry, anxiety and interpretive bias, participants completed a battery of self report measures. Results Two participants demonstrated a positive response in their level of worry upon starting the CBM-I training and for both, gains were maintained one week after its completion. For the sample as a whole, negative interpretation bias reduced at post CBM-I and at one week follow-up. Conclusions The results indicate the potential value of CBM-I as a clinical tool for modifying interpretation bias in patients experiencing clinical levels of generalised anxiety. The ability of CBM-I to attenuate generalised anxiety disorder (GAD) associated symptomatology appears equivocal. In light of methodological constraints, the findings are tentative warranting further investigation.
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