About the Authors

Rébecca Robillard

Affiliation Clinical Research Unit, Brain & Mind Research Institute, The University of Sydney, Camperdown, New South Wales, Australia

Sharon L. Naismith

Affiliations Clinical Research Unit, Brain & Mind Research Institute, The University of Sydney, Camperdown, New South Wales, Australia, Healthy Brain Ageing Clinic, Brain & Mind Research Institute, The University of Sydney, Camperdown, New South Wales, Australia

Kristie Leigh Smith

Affiliation Clinical Research Unit, Brain & Mind Research Institute, The University of Sydney, Camperdown, New South Wales, Australia

Naomi L. Rogers

Affiliation Concord Clinical School, The University of Sydney, Concord, New South Wales, Australia

Django White

Affiliation Clinical Research Unit, Brain & Mind Research Institute, The University of Sydney, Camperdown, New South Wales, Australia

Zoe Terpening

Affiliations Clinical Research Unit, Brain & Mind Research Institute, The University of Sydney, Camperdown, New South Wales, Australia, Healthy Brain Ageing Clinic, Brain & Mind Research Institute, The University of Sydney, Camperdown, New South Wales, Australia

Tony K. C. Ip

Affiliation Clinical Research Unit, Brain & Mind Research Institute, The University of Sydney, Camperdown, New South Wales, Australia

Daniel F. Hermens

Affiliation Clinical Research Unit, Brain & Mind Research Institute, The University of Sydney, Camperdown, New South Wales, Australia

Bradley Whitwell

Affiliation Clinical Research Unit, Brain & Mind Research Institute, The University of Sydney, Camperdown, New South Wales, Australia

Elizabeth M. Scott

Affiliation Clinical Research Unit, Brain & Mind Research Institute, The University of Sydney, Camperdown, New South Wales, Australia

Ian B. Hickie

ian.hickie@sydney.edu.au

Affiliation Clinical Research Unit, Brain & Mind Research Institute, The University of Sydney, Camperdown, New South Wales, Australia

Competing Interests

Some of our co-authors received funding from several commercial sources: Servier, Pfizer, AstraZeneca, Janssen-Cilag and Eli Lilly. This does not alter our adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: SN NR DH ES IH. Performed the experiments: RR KS DW ZT TI BW. Analyzed the data: RR. Contributed reagents/materials/analysis tools: RR KS TI. Wrote the paper: RR SN KS IH.