ArticleRoyal Society open science2019
Testing the unitary theory of language lateralization using functional transcranial Doppler sonography in adults.
Article in Royal Society open science, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- The reliability of bilateral cerebral laterality for word generation: Who is left in the middle?Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Perinatal adversities as a common factor underlying the association between atypical laterality and neurodevelopmental disorders: A developmental perspective.Psychophysiology · 2024Review
- What does lack of language lateralization signify? Evidence of fluctuating asymmetry rather than hemispheric equipoise on non-lateralized tasks.Royal Society open science · 2024Article
- Variability in Hemispheric Functional Segregation Phenotypes: A Review and General Mechanistic Model.Neuropsychology review · 2024Review
- Approaches to Measuring Language Lateralisation: An Exploratory Study Comparing Two fMRI Methods and Functional Transcranial Doppler Ultrasound.Neurobiology of language (Cambridge, Mass.) · 2024Article
- Article
- Comparing human and chimpanzee temporal lobe neuroanatomy reveals modifications to human language hubs beyond the frontotemporal arcuate fasciculus.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Article
- Left-Handers Are Less Lateralized Than Right-Handers for Both Left and Right Hemispheric Functions.Cerebral cortex (New York, N.Y. : 1991) · 2021Article
- An updated investigation of the multidimensional structure of language lateralization in left- and right-handed adults: a test-retest functional transcranial Doppler sonography study with six language tasks.Royal Society open science · 2021Article
- Mirrored brain organization: Statistical anomaly or reversal of hemispheric functional segregation bias?Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Investigation into inconsistent lateralisation of language functions as a potential risk factor for language impairment.The European journal of neuroscience · 2020Article
- Heritability of language laterality assessed by functional transcranial Doppler ultrasound: a twin study.Wellcome open research · 2019Article
- Cerebral lateralisation of first and second languages in bilinguals assessed using functional transcranial Doppler ultrasound.Wellcome open research · 2016Article
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Authors and funding
5 authors.
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Abstract
Hemispheric dominance for language can vary from task to task, but it is unclear if this reflects error of measurement or independent lateralization of different language systems. We used functional transcranial Doppler sonography to assess language lateralization within the middle cerebral artery territory in 37 adults (seven left-handers) on six tasks, each given on two occasions. Tasks taxed different aspects of language function. A pre-registered structural equation analysis was used to compare models of means and covariances. For most people, a single lateralized factor explained most of the covariance between tasks. A minority, however, showed dissociation of asymmetry, giving a second factor. This was mostly derived from a receptive task, which was highly reliable but not lateralized. The results suggest that variation in the strength of language lateralization reflects true individual differences and not just error of measurement. The inclusion of several tasks in a laterality battery makes it easier to detect cases of atypical asymmetry.
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