BD has a cumulative lifetime prevalence ranging from 1.52% across Europe and is treated with moderate success using Cognitive Behavioural therapy (CBT). However, 'moderate success' is considerably low compared to other mental health problems and CBT can be time time consuming, expensive, and cognitively demanding (requiring a high level of functioning of one or more cognitive functions). Accordingly, BD may be one of the emotional disorders in greatest need of novel and evidence based treatments.