Deficits of encoding in hypnosis: a result of altered state of awareness.

Because no studies have examined learning in hypnosis in an academic setting, the current study tested whether learning in hypnosis impacts test performance. Participants (N = 43) were randomly assigned into a hypnosis or a control group. Participants listened to an academic lecture, answered questions about their hypnotic depth, and completed a quiz based on the lecture. The data was analyzed using multilevel modeling predicting test performance from group placement. Learning in the hypnosis predicted significantly worse performance compared to the control group. This relationship was significantly mediated by attention, which had a positive relationship to test performance. However, the altered state of awareness produced by the hypnosis condition was associated with a more significant decrease in test performance.

Am J Clin Hypn. 2013 Apr;55(4):360-9. Jacobson NC, Kramer SL, Tharp AG, Harmon KA, Cejas GP, Costa SC. Pennsylvania State University, University Park, Pennsylvania 16802, USA. ncj2@psu.edu