ArticleNeurology2020
Anatomical evidence of an indirect pathway for word repetition.
Article in Neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 3 of them syntheses that pooled 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.
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.
Who cites it
49 citing papers in PubMed, 3 syntheses or guidelines pooled it, 95 citations in OpenAlex.
- White matter variability, cognition, and disorders: a systematic review.Brain structure & function · 2022Pooled it
- Speech and language impairments in behavioral variant frontotemporal dementia: A systematic review.Neuroscience and biobehavioral reviews · 2021Pooled it
- Correlations between Dual-Pathway White Matter Alterations and Language Impairment in Patients with Aphasia: A Systematic Review and Meta-analysis.Neuropsychology review · 2021Pooled it
- Individual differences in speech monitoring: Functional and structural correlates of delayed auditory feedback.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Neurovariability as a signature of adaptive brain function.Brain structure & function · 2026Review
- Evolution of the frontal aslant tract and implications for primate vocalization and human speech.Nature communications · 2026Article
- Semantic and Syntactic Language Differences Associated with theJournal of neurolinguistics · 2026Article
- Neural structures associated with auditory short-term memory and sentence repetition following chronic left hemisphere stroke.Frontiers in neuroscience · 2026Article
- Transcranial Magnetic Stimulation Combined with Speech-Language Therapy for Post-Stroke Aphasia Recovery: A Systematic Review and Network Meta-Analysis.Therapeutics and clinical risk management · 2026Review
- Anatomical insights into the superior longitudinal system from integrative in- vivo and ex-vivo mapping.Communications biology · 2025Article
- Cross-species neuroanatomy in primates using tractography.Brain structure & function · 2025Review
- Susceptibility to multitasking in stroke is associated to multiple-demand system damage and leads to lateralized visuospatial deficits.Communications biology · 2025Article
- Left parietal structural connectivity mediates typical and atypical language laterality in temporal lobe epilepsy.Epilepsia · 2025Article
- Neuroplasticity in Diffuse Low-grade Gliomas: Backward Modelling of Brain-tumor Interactions Prior to Diagnosis is Needed to Better Predict Recovery after Treatment.Current neurology and neuroscience reports · 2025Review
- Recovery of Verbal Working Memory Depends on Left Hemisphere White Matter Tracts.Neurobiology of language (Cambridge, Mass.) · 2025Article
- Functional anatomy and topographical organization of the frontotemporal arcuate fasciculus.Communications biology · 2024Article
- Function-guided differences of arcuate fascicle and inferior fronto-occipital fascicle tractography as diagnostic indicators for surgical risk stratification.Brain structure & function · 2024Article
- Wernicke's functional neuroanatomy model of language turns 150: what became of its psychological reflex arcs?Brain structure & function · 2024Review
- On the role of the arcuate fasciculus in word production and repetition: a reply to Van den Hoven et al. (2024).Brain structure & function · 2024Article
- Time to bury the chisel: a continuous dorsal association tract system.Brain structure & function · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 1 institution in 2 countries.
Funding
Abstract
objectiveTo combine MRI-based cortical morphometry and diffusion white matter tractography to describe the anatomical correlates of repetition deficits in patients with primary progressive aphasia (PPA).
methodsThe traditional anatomical model of language identifies a network for word repetition that includes Wernicke and Broca regions directly connected via the arcuate fasciculus. Recent tractography findings of an indirect pathway between Wernicke and Broca regions suggest a critical role of the inferior parietal lobe for repetition. To test whether repetition deficits are associated with damage to the direct or indirect pathway between both regions, tractography analysis was performed in 30 patients with PPA (64.27 ± 8.51 years) and 22 healthy controls. Cortical volume measurements were also extracted from 8 perisylvian language areas connected by the direct and indirect pathways.
resultsCompared to healthy controls, patients with PPA presented with reduced performance in repetition tasks and increased damage to most of the perisylvian cortical regions and their connections through the indirect pathway. Repetition deficits were prominent in patients with cortical atrophy of the temporo-parietal region with volumetric reductions of the indirect pathway.
conclusionsThe results suggest that in PPA, deficits in repetition are due to damage to the temporo-parietal cortex and its connections to Wernicke and Broca regions. We therefore propose a revised language model that also includes an indirect pathway for repetition, which has important clinical implications for the functional mapping and treatment of neurologic patients.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.