Journal of Autism and Developmental Disorders

, Volume 48, Issue 9, pp 3253–3255 | Cite as

There Are Indeed More Left-Handers Within the Autism Spectrum Disorder Compared with in the General Population, but the Many Mixed-Handers Is the More Interesting Finding

  • Anne Langseth Rysstad
  • Arve Vorland PedersenEmail author
Letter to the Editor


Letter to the editor in response to Howard Kushner’s claims that our data on non-right-handedness within the autism spectrum disorder were organized, by sleight of hand, so they would give a significant result that would support our desired conclusion. Here, we have re-categorized our data, and present evidence that there are indeed more left-handers within the ASD. Furthermore, we refute claims that we have misinterpreted our results in order to conclude about a causal link between left-handedness and ASD, and highlight our original suggestion that mixed-handedness, more specifically unclear handedness, is the bigger problem, and that our findings of a total 60% non-right-handedness was the more interesting finding.


Hand dominance Hand preference Ambilateral Laterality 


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Anne Langseth Rysstad
    • 1
  • Arve Vorland Pedersen
    • 2
    Email author
  1. 1.Special Section for Intellectual Disabilities and Autism Spectrum DisordersVestre Viken HFLierNorway
  2. 2.Department of Neuromedicine and Movement Science, Faculty of Medicine and Health SciencesNorwegian University of Science and TechnologyTrondheimNorway

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