Acknowledgements
The authors of this study would like to thank Ms. Anna Ziller and Laura Helger, who helped with the examination of participants and with use of the tDCS hood. Moreover, the study's authors would like to thank Ms. Svenja Bardtke, M. Psych., who assisted with the planning of the trial schedule. In addition, we would like to thank Ms. Susanne Laubender, who helped with the saliva sampling process. Moreover, we would like to thank Sooma Oy (Helsinki, Finland), who helped with the distribution of the tDCS and sham stimulation devices, as well as with financial support for the cortisol measurements in saliva. Finally, we would like to thank Mr. Martin Goldsworthy, MA, M.Sc., for his suggestions and improvements on English language.