Evidence map›Paper›PMID 35064524›Full record

ReviewNeuropsychology review2022

Handedness in ADHD: Meta-Analyses.

Evgenia Nastou, Sebastian Ocklenburg, Martine Hoogman, Marietta Papadatou-Pastou

Abstract readReview
PubMed Publisher
In one paragraph

Review in Neuropsychology review, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Hemispheric asymmetries in borderline personality disorder: a systematic review.European archives of psychiatry and clinical neuroscience · 2025
    Pooled it
  2. Hand Preference in Stuttering: Meta-Analyses.Neuropsychology review · 2024
    Pooled it
  3. Pooled it
  4. Risk calculation circuit abnormalities plus psychosocial risk variables predict problematic substance use in youth with externalizing disorders.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Handedness in schizophrenia and affective disorders: a large-scale cross-disorder study.European archives of psychiatry and clinical neuroscience · 2025
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Clinical implications of brain asymmetries.Nature reviews. Neurology · 2024
    Review
  15. Article
  16. Review
  17. Behavioral lateralization in bipolar disorders: a systematic review.International journal of bipolar disorders · 2023
    Review
  18. Article
  19. Hemispheric asymmetries in mental disorders: evidence from rodent studies.Journal of neural transmission (Vienna, Austria : 1996) · 2023
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Evgenia NastouDepartment of Primary Education, National and Kapodistrian University of Athens, 13A Navarinou Street, 10680, Athens, Greece.ORCID 0000-0001-9849-3728
Sebastian OcklenburgDepartment of Psychology, Medical School Hamburg, Hamburg, Germany.ORCID 0000-0001-5882-3200
Martine HoogmanRadboud University, Nijmegen, The Netherlands.ORCID 0000-0002-1261-7628
Marietta Papadatou-PastouDepartment of Primary Education, National and Kapodistrian University of Athens, 13A Navarinou Street, 10680, Athens, Greece. marietta.papadatou-pastou@seh.oxon.org.ORCID 0000-0002-2834-4003

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Meta-analyses have shown that several neurodevelopmental and psychiatric disorders, such as autism spectrum disorder and schizophrenia, are associated with a higher prevalence of atypical (left-, non-right-, or mixed-) handedness. One neurodevelopmental disorder for which this association is unclear is attention deficit hyperactivity disorder (ADHD). Here, some empirical studies have found evidence for a higher prevalence of atypical handedness in individuals with ADHD compared to neurotypical individuals. However, other studies failed to establish such an association. Therefore, meta-analytic integration is critical to estimate whether or not there is an association between handedness and ADHD. We report the results of three meta-analyses (left-, mixed-, and non-right-handedness) comparing handedness in individuals with ADHD to controls (typically developing individuals). The results show evidence of a trend towards elevated levels of atypical handedness when it comes to differences in left- and mixed-handedness (p = 0.09 and p = 0.07, respectively), but do show clear evidence of elevated levels of non-right-handedness between individuals with ADHD and controls (p = 0.02). These findings are discussed in the context of the hypothesis that ADHD is a disorder in which mostly right-hemispheric brain networks are affected. Since right-handedness represents a dominance of the left motor cortex for fine motor behavior, such as writing, as well as a left-hemispheric dominance for language functions, and about 90% of individuals are right-handers, this hypothesis might explain why there is not stronger evidence for an association of left-handedness with ADHD. We suggest that the mechanisms involved in the pathogenesis of ADHD might show an overlap with the mechanisms involved in handedness strength, but not handedness direction.

Indexed as

Attention Deficit Disorder with HyperactivityAutism Spectrum DisorderCerebral CortexFunctional LateralityHumansLanguageADDADHDHandednessHand preferenceHand skillMeta-analysis

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.