Article Information
- Received October 11, 2010
- Revision received June 6, 2011
- Accepted June 8, 2011
- First published July 27, 2011.
- Version of record published July 27, 2011.
Author Information
- Gabriëlla A. M. Blokland1,2,3,
- Katie L. McMahon2,
- Paul M. Thompson4,
- Nicholas G. Martin1,
- Greig I. de Zubicaray3, and
- Margaret J. Wright1,3
- 1Genetic Epidemiology Laboratory, Queensland Institute of Medical Research, Brisbane, Queensland 4006, Australia,
- 2Centre for Advanced Imaging, and
- 3School of Psychology, University of Queensland, Brisbane, Queensland 4072, Australia, and
- 4Laboratory of Neuro Imaging, Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, California 90095
Author contributions
Author contributions: K.L.M., P.M.T., N.G.M., G.I.deZ., and M.J.W. designed research; G.A.M.B. performed research; G.A.M.B. analyzed data; G.A.M.B. wrote the paper.
Disclosures
- Received October 11, 2010.
- Revision received June 6, 2011.
- Accepted June 8, 2011.
This study was supported by the Eunice Kennedy Shriver National Institute of Child Health & Human Development (Grant RO1HD050735) and National Health and Medical Research Council, Australia (Project Grant 496682). The collection of IQ data and zygosity typing was supported by the Australian Research Council (Grants A7960034, A79906588, A79801419, and DP0212016). G.A.M.B. is supported by an ANZ Trustees PhD Scholarship in Medical Research, Queensland, Australia. The content of this paper is solely the responsibility of the authors and does not necessarily represent the official views of the Eunice Kennedy Shriver National Institute of Child Health & Human Development or The National Institutes of Health. We are very grateful to the twins for their generosity of time and willingness to participate in our studies. We thank research nurses Marlene Grace and Ann Eldridge for twin recruitment, radiographers Matthew Meredith and Peter Hobden for data acquisition, Daniel Park for IT support, and Peter Visscher and Volkmar Glauche for their helpful suggestions.
- Correspondence should be addressed to Gabriëlla A. M. Blokland, Genetic Epidemiology Laboratory, Queensland Institute of Medical Research, Locked Bag 2000, Royal Brisbane Hospital, Brisbane, QLD 4029, Australia. gabriella.blokland{at}qimr.edu.au
Statistics from Altmetric.com
Article usage
In this issue
