About the Authors

Linda Booij

linda.booij@queensu.ca

Affiliations Department of Psychology and Psychiatry, Queen’s University, Kingston, Ontario, Canada, Sainte-Justine Hospital Research Center & University of Montreal, Montreal, Quebec, Canada, Department of Psychiatry, McGill University, Montreal, Quebec, Canada

Moshe Szyf

Affiliation Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada

Angela Carballedo

Affiliation Department of Psychiatry, University of Dublin, Trinity College Dublin, Dublin, Ireland

Eva-Maria Frey

Affiliation Department of Psychiatry and Psychotherapy, University of Regensburg, Regensburg, Germany

Derek Morris

Affiliation Department of Psychiatry, University of Dublin, Trinity College Dublin, Dublin, Ireland

Sergiy Dymov

Affiliation Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada

Farida Vaisheva

Affiliation Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada

Victoria Ly

Affiliation Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada

Ciara Fahey

Affiliation Neuropsychiatric Genetics Research Group, Dept. of Psychiatry & Institute of Molecular Medicine, University of Dublin, Trinity College Dublin, Dublin, Ireland

James Meaney

Affiliation Centre of Advanced Medical Imaging, St. James’s Hospital & Trinity College Dublin, Dublin, Ireland

Michael Gill

Affiliations Department of Psychiatry, University of Dublin, Trinity College Dublin, Dublin, Ireland, Neuropsychiatric Genetics Research Group, Dept. of Psychiatry & Institute of Molecular Medicine, University of Dublin, Trinity College Dublin, Dublin, Ireland, Institute of Neuroscience, University of Dublin, Trinity College Dublin, Dublin, Ireland

Thomas Frodl

Affiliations Department of Psychiatry, University of Dublin, Trinity College Dublin, Dublin, Ireland, Department of Psychiatry and Psychotherapy, University of Regensburg, Regensburg, Germany, Centre of Advanced Medical Imaging, St. James’s Hospital & Trinity College Dublin, Dublin, Ireland, Institute of Neuroscience, University of Dublin, Trinity College Dublin, Dublin, Ireland

Competing Interests

Dr. Moshe Szyf was supported by a GlaxoSmithKline-Canadian Institutes of Health Research professorship in pharmacology. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: LB MS TF DM. Performed the experiments: SD FV VL TF AC EF JM. Analyzed the data: LB TF EF CF DM. Contributed reagents/materials/analysis tools: LB MS MG DM CF TF JM. Wrote the paper: LB MS SD FV VL TF AC DM CF JM EF MG.