We visited IfADo (Leibniz Research Centre for Working Environment and Human Factors) in Dortmund, Germany from February 24th to March 2nd, and discussed with Prof. Michael Nitsche and his lab members about our future research collaboration for human research using non-invasive transcranial brain stimulation with pharmacological manipulations of dopamine/serotonin transmission. In addition, Graduate students, Srishti Tripathi and Yui Asaoka presented their studies at the institute.