About the Authors

Peter Frost

Roles Conceptualization, Writing – original draft, Writing – review & editing

Affiliation Department of Anthropology, Université Laval, Quebec City, Canada

Karel Kleisner

Roles Conceptualization, Formal analysis, Writing – review & editing

Affiliation Division of Biology, Faculty of Science, Charles University, Prague, Viničná 7, Czech Republic

Jaroslav Flegr

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Writing – review & editing

flegr@cesnet.cz

Affiliations Division of Biology, Faculty of Science, Charles University, Prague, Viničná 7, Czech Republic, Division of Applied Neurosciences and Brain Imagination, National Institute of Mental Health, Klecany, Czech Republic

Competing Interests

The authors have declared that no competing interests exist.