. 2010 Jun 28;4:54. doi: 10.3389/fnhum.2010.00054
Copyright © 2010 Kühn, Seurinck, Fias and Waszak.
This is an open-access article subject to an exclusive license agreement between the authors and the Frontiers Research Foundation, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited.
Figure 1.
Schematic drawing of the experimental setup.