AUTHOR=Gvirts Provolovski Hila Z. , Perlmutter Rotem TITLE=How Can We Prove the Causality of Interbrain Synchronization? JOURNAL=Frontiers in Human Neuroscience VOLUME=15 YEAR=2021 URL=https://www.frontiersin.org/journals/human-neuroscience/articles/10.3389/fnhum.2021.651949 DOI=10.3389/fnhum.2021.651949 ISSN=1662-5161