About the Authors

René Mõttus

rene.mottus@ed.ac.uk

Affiliations Centre for Cognitive Ageing and Cognitive Epidemiology, Department of Psychology, University of Edinburgh, Edinburgh, United Kingdom, Department of Psychology, University of Tartu, Tartu, Estonia

Anu Realo

Affiliation Department of Psychology, University of Tartu, Tartu, Estonia

Jüri Allik

Affiliations Department of Psychology, University of Tartu, Tartu, Estonia, Estonian Academy of Sciences, Tallinn, Estonia

Tõnu Esko

Affiliations Estonian Genome Centre of University of Tartu, Tartu, Estonia, Division of Endocrinology, Boston Children’s Hospital, Boston, United States of America, Department of Genetics, Harvard Medical School, Boston, United States of America, Broad Institute, Cambridge, United States of America

Andres Metspalu

Affiliations Estonian Academy of Sciences, Tallinn, Estonia, Estonian Genome Centre of University of Tartu, Tartu, Estonia, Institute of Molecular and Cell Biology, University of Tartu, Tartu, Estonia

Wendy Johnson

Affiliation Centre for Cognitive Ageing and Cognitive Epidemiology, Department of Psychology, University of Edinburgh, Edinburgh, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RM TE AM. Performed the experiments: RM TE AM. Analyzed the data: RM. Contributed reagents/materials/analysis tools: TE AM. Wrote the paper: RM AR JA TE AM WJ.