This document describes the HPC-Europa3 visit of Dr. Géza Ódor, Centre for Energy Research, Institute for Technical Physics and Materials Science of the Hungarian Academy of Sciences (Budapest, Hungary), to Dr. Gustavo Deco, Pompeu Fabra University (UPF, Barcelona, Spain), and their subsequent ongoing collaboration. The study of universal scaling behaviour in statistical physics can be applied to the study of brain science with the help of HPC. The emerging collaboration between the two groups shows the benefits of the transnational access program.