About the Authors

Andrew H. Kemp

andrew.kemp@sydney.edu.au

Affiliation School of Psychology, University of Sydney, Sydney, New South Wales, Australia

Daniel S. Quintana

Affiliation School of Psychology, University of Sydney, Sydney, New South Wales, Australia

Kim L. Felmingham

Affiliation School of Psychology, University of New South Wales, Sydney, New South Wales, Australia

Slade Matthews

Affiliation School of Medical Sciences, University of Sydney, Sydney, New South Wales, Australia

Herbert F. Jelinek

Affiliations Centre for Research in Complex Systems, Charles Sturt University, Albury, New South Wales, Australia, Australian School of Advanced Medicine, Macquarie University, Sydney, New South Wales, Australia

Competing Interests

The authors received funding for this study from commercial sources. These included GlaxoSmithKline, Australia, Postgraduate Support Grant (2007–08), which provided support to AHK for conference travel. Brain Resource and Johnson & Johnson Pharmaceutical Research and Development, RED Europe funded the research on which this study is based. AHK was employed on a part-time contractual basis to coordinate the research activities. These funding arrangements do not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials. Indeed, the data on which the present study is based is made available by BRAINnet, www.BRAINnet.net, under the governance of the BRAINnet Foundation. BRAINnet is the scientific network that coordinates access to the Brain Resource International Database for independent scientific purposes.

Author Contributions

Conceived and designed the experiments: AK DQ. Performed the experiments: AK DQ. Analyzed the data: AK DQ. Contributed reagents/materials/analysis tools: HJ SM. Wrote the paper: AK DQ KF SM HJ.