About the Authors

Kimmo Eriksson

kimmoe@gmail.com

Affiliations School of Education, Culture and Communication, Mälardalen University, Västerås, Sweden, Centre for the Study of Cultural Evolution, Stockholm University, Stockholm, Sweden

Brent Simpson

Affiliation Department of Sociology, University of South Carolina, Columbia, South Carolina, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KE BS. Performed the experiments: KE. Analyzed the data: KE. Wrote the paper: BS KE.