. 2012 Jan 3;5:177. doi: 10.3389/fnhum.2011.00177
Copyright © 2012 Thoresen, Jensen, Sigvartsen, Bolstad, Server, Nakstad, Andreassen and Endestad.
This is an open-access article distributed under the terms of the Creative Commons Attribution Non Commercial License, which permits non-commercial use, distribution, and reproduction in other forums, provided the original authors and source are credited.
Figure 1.
Trial structure in the experiment.