Hypnosis and brain injury: where to find stuff

This post is a continually updated list of important communications on our paper in Brain entitled “Improving working memory performance in brain-injured patients using hypnotic suggestion.” and my comments to each of them.


Data and materials

  • Supplementary materials: Supports the main article with a more detailed presentation of data, methods, and stats. It took a long time to write the supplementary (15 pages), so I really hope that you read it!
  • Data and analysis at OSF: Contains all the data and analyses used in the Brain article and it’s supplementary materials. We encourage you to scrutinize this, suggest improvements, as well as carry out alternative analyses.
  • We plan to make the hypnosis scripts available to everybody eventually. On the other hand, we want to avoid putting it “out in the wild” if it somehow turns out to be a fluke. So for now, we pursue a strategy where we only make non-published details about the intervention and the hypnosis scripts available to institutions/companies who can and will evaluate the effectiveness of the scripts systematically. If you’re such an institution, we’d be eager to set up a collaboration. For example, Tryg Foundation just funded an RCT at Jobkompagniet Silkeborg which will include 120 patients during the next 2-4 years. The design and outcome measures simultaneously satisfy research purposes and Jobkompagniet’s core mission. We expect to stick to this institution-and-evaluation-only strategy for 2-4 years until enough evidence has accumulated that we feel confident about the clinical effectiveness of hypnosis following acquired brain injury. If you’re a private therapist, if you have suffered an acquired brain injury, or if you’re a relative, we will ask you to wait until we have this evidence. Also see FAQ and answers above.


  • Spot on Danish national television, including a case with a 19-year old man who had sustained a traumatic brain injury in a high-speed car crash two years before enrollment in the experiment. The spot is accompanied by two articles and a radio spot (also Danish). Our impression is that this case is in the top 30% on real-life improvement, i.e. not too unrepresentative.