The Effect of Hypnotic Suggestion After Acquired Brain Injury or Concussion

A recent randomized clinical trial (RCT) demonstrated large effects of hypnotic suggestion on working memory following acquired brain injury. However, no studies have investigated long-term effects (\> 2 months) effects on return to work (RTW). Therefore the aim is in a RCT to study the effect of hypnotic suggestion on RTW in employed individuals with acquired brain injury or concussion, that were referred to an out-patient municipal vocational rehabilitation center in Denmark. Participants were randomized to a passive (treatment as usual), active comparison (a weekly treatment session of mindfullness-based stress reduction for four weeks) or intervention group (a weekly treatment session of targeted suggestion for four weeks). Intention-to-treat analysis of the hypnosis effect on return to work within six months follow-up will be performed. Results Participants (N=77) have accepted and participated in the study. Effect measures are to be analysed.