World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
77
Citations
19888
World Ranking
1665
National Ranking
81

Overview

Helen Leonard is affiliated with the Telethon Kids Institute in Australia. Their research primarily focuses on genetics and neurodevelopmental disorders, as reflected in a significant publication record within the fields of biochemistry, genetics and molecular biology, and medicine. The scientist's subfield expertise includes genetics, clinical psychology, cognitive neuroscience, psychiatry and mental health, and pediatrics, perinatology and child health.

Helen Leonard's research topics include:

  • Genetics and neurodevelopmental disorders
  • Family and disability support research
  • Autism spectrum disorder research
  • Genomic variations and chromosomal abnormalities
  • Adolescent and pediatric healthcare
  • Childhood cancer survivors' quality of life
  • Cleft lip and palate research

Frequent publication venues where Leonard has contributed include:

  • Developmental Medicine & Child Neurology
  • Journal of Child Neurology
  • The Journal of Pediatrics
  • American Journal of Medical Genetics Part A
  • Orphanet Journal of Rare Diseases

Notable recent publications authored or co-authored by Leonard feature various aspects of intellectual disability, neurogenetic disorders, and pediatrics. Examples include:

  • Prevalence estimates of mental health problems in children and adolescents with intellectual disability: A systematic review and meta-analysis (2020), published in Australian & New Zealand Journal of Psychiatry
  • CDKL5 deficiency disorder: clinical features, diagnosis, and management (2022), published in The Lancet Neurology
  • Functioning, participation, and quality of life in children with intellectual disability: an observational study (2020), published in Developmental Medicine & Child Neurology
  • Systematic Review and Meta-analysis: Mental Health in Children With Neurogenetic Disorders Associated With Intellectual Disability (2020), published in Journal of the American Academy of Child & Adolescent Psychiatry
  • Stillbirth risk prediction using machine learning for a large cohort of births from Western Australia, 1980-2015 (2020), published in Scientific Reports

Helen Leonard has collaborated frequently with other researchers including Jenny Downs, Kingsley Wong, Peter Jacoby, Tim A. Benke, and Scott Demarest.

Best Publications

  • Rett syndrome: Revised diagnostic criteria and nomenclature

    Jeffrey L. Neul;Walter E. Kaufmann;Daniel G. Glaze;John Christodoulou

  • The epidemiology of mental retardation: Challenges and opportunities in the new millennium

    Helen Leonard;Xingyan Wen

  • Association of Genetic and Environmental Factors With Autism in a 5-Country Cohort.

    Dan Bai;Benjamin Hon Kei Yip;Benjamin Hon Kei Yip;Gayle C. Windham;Andre Sourander

  • Mutations of CDKL5 Cause a Severe Neurodevelopmental Disorder with Infantile Spasms and Mental Retardation

    Linda S. Weaving;John Christodoulou;John Christodoulou;Sarah L. Williamson;Sarah L. Williamson;Kathie L. Friend

  • Intellectual disability co-occurring with schizophrenia and other psychiatric illness: population-based study

    Vera A. Morgan;Helen Leonard;Jenny Bourke;Assen Jablensky

  • Rett Syndrome in Australia: A Review of the Epidemiology

    Crystal L. Laurvick;Nicholas de Klerk;Carol Bower;John Christodoulou

  • The increasing prevalence of reported diagnoses of childhood psychiatric disorders: a descriptive multinational comparison

    Hjördis O. Atladottir;David Gyllenberg;David Gyllenberg;Amanda Langridge;Sven Sandin

  • The CDKL5 disorder is an independent clinical entity associated with early-onset encephalopathy

    Stephanie Fehr;Meredith Wilson;Meredith Wilson;Jennepher Downs;Jennepher Downs;Simon Williams

  • Autism risk associated with parental age and with increasing difference in age between the parents

    S Sandin;D Schendel;D Schendel;P Magnusson;C Hultman

  • Investigating genotype-phenotype relationships in Rett syndrome using an international data set.

    A. Bebbington;A. Anderson;D. Ravine;S. Fyfe

  • Cyclin-Dependent Kinase-Like 5 Deficiency Disorder: Clinical Review.

    Heather E. Olson;Scott T. Demarest;Elia M. Pestana-Knight;Lindsay C. Swanson

  • Autism spectrum disorders in young children: effect of changes in diagnostic practices

    Natasha Nassar;Glenys Dixon;Jenny Bourke;Carol Bower

  • The impact of having a sibling with an intellectual disability: parental perspectives in two disorders.

    S. Mulroy;L. Robertson;K. Aiberti;Helen Leonard

  • Clinical and biological progress over 50 years in Rett syndrome

    Helen Leonard;Stuart Cobb;Jenny Downs

  • Australian children living with rare diseases: experiences of diagnosis and perceived consequences of diagnostic delays

    Yvonne Zurynski;Marie Deverell;Troy Dalkeith;Sandra Johnson

  • Maternal Conditions and Perinatal Characteristics Associated with Autism Spectrum Disorder and Intellectual Disability

    Amanda T. Langridge;Emma J. Glasson;Natasha Nassar;Natasha Nassar;Peter Jacoby

  • Prevalence estimates of mental health problems in children and adolescents with intellectual disability: A systematic review and meta-analysis.

    Nicholas Buckley;Emma J Glasson;Wai Chen;Amy Epstein

  • Rare childhood diseases: how should we respond?

    Yvonne A Zurynski;Katie Frith;Helen Leonard;Elizabeth J Elliott;Elizabeth J Elliott

  • Young adults with intellectual disability transitioning from school to post-school: a literature review framed within the ICF.

    Kitty-Rose Foley;P Dyke;S Girdler;J Bourke

  • Maltreatment Risk Among Children With Disabilities.

    Miriam J Maclean;Scott Sims;Carol Bower;Helen Leonard

  • Family functioning in families with a child with Down syndrome: a mixed methods approach

    Kate Povee;Lynne Roberts;J. Bourke;H. Leonard

  • Trends in the Diagnosis of Rett Syndrome in Australia

    Stephanie Fehr;Ami Bebbington;Natasha Nassar;Jenny Downs

  • Effects of MECP2 mutation type, location and X-inactivation in modulating rett syndrome phenotype

    Linda S. Weaving;Sarah L. Williamson;Bruce Bennetts;Bruce Bennetts;Mark Davis

Frequent Co-Authors

John Christodoulou
John Christodoulou University of Melbourne
Andrew J. O. Whitehouse
Andrew J. O. Whitehouse Telethon Kids Institute
Katrina Williams
Katrina Williams University of Melbourne
Abraham Reichenberg
Abraham Reichenberg Icahn School of Medicine at Mount Sinai
David Forbes
David Forbes University of Melbourne
Andre Sourander
Andre Sourander University of Turku
Gwynnyth Llewellyn
Gwynnyth Llewellyn University of Sydney
Stewart L. Einfeld
Stewart L. Einfeld University of Sydney
Julian N. Trollor
Julian N. Trollor University of New South Wales
Joseph D. Buxbaum
Joseph D. Buxbaum Icahn School of Medicine at Mount Sinai

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Psychology offers a versatile foundation for various careers, with online degree programs making this field even more accessible. Many students pursue psychology degrees to enter mental health, counseling, or social work, and understanding state-specific licensing requirements is essential.

For example, the social worker education requirements in Arizona highlight the need for a minimum of a bachelor’s degree in social work, with additional requirements for clinical roles. Similarly, the Arkansas education requirements for social workers note the importance of accredited programs and state licensure.

Requirements can vary significantly; in states like California, the social worker degree requirements in California emphasize advanced degrees for clinical practice. Meanwhile, the social worker education requirements in Colorado include coursework and supervised experience as part of the path to licensure.

As career pathways broaden with online degrees, it’s important to carefully review each state’s specific criteria. This careful planning ensures a seamless transition from education to a rewarding career in psychology or social work.

Best Scientists Citing Helen Leonard

Trending Scientists

Recently Published Articles