About the Authors

Claire M. A. Haworth

Claire.Haworth@kcl.ac.uk

Affiliation Social, Genetic and Developmental Psychiatry Centre, King's College London, London, United Kingdom

Kathryn Asbury

Affiliation Social, Genetic and Developmental Psychiatry Centre, King's College London, London, United Kingdom

Philip S. Dale

Affiliation Department of Speech and Hearing Sciences, University of New Mexico, Albuquerque, New Mexico, United States of America

Robert Plomin

Affiliation Social, Genetic and Developmental Psychiatry Centre, King's College London, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RP CMAH PSD KA. Analyzed the data: CMAH. Wrote the paper: CMAH RP. Critical evaluation and revision of the paper: RP CMAH PSD KA.