Conduction Aphasia and the Arcuate Fasciculus: A Reexamination of the Wernicke–Geschwind Model

@article{Anderson1999ConductionAA,
  title={Conduction Aphasia and the Arcuate Fasciculus: A Reexamination of the Wernicke–Geschwind Model},
  author={J. M. Anderson and Robin L. Gilmore and Steven Roper and Bruce A. Crosson and Robert M. Bauer and Stephen E. Nadeau and David Q. Beversdorf and Jean E. Cibula and M. Rogish and S. J. Kortencamp and John D. Hughes and Leslie J. Gonzalez Rothi and Kenneth M. Heilman},
  journal={Brain and Language},
  year={1999},
  volume={70},
  pages={1-12}
}
Wernicke, and later Geschwind, posited that the critical lesion in conduction aphasia is in the dominant hemisphere's arcuate fasciculus. This white matter pathway was thought to connect the anterior language production areas with the posterior language areas that contain auditory memories of words (a phonological lexicon). Alternatively, conduction aphasia might be induced by cortical dysfunction, which impairs the phonological output lexicon. We observed an epileptic patient who, during… 
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180 Citations
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180 Citations

The role of the arcuate fasciculus in conduction aphasia.
TLDR
Clinical and neurophysiological findings may suggest that the AF is not required for repetition although could have a subsidiary role in it.
A multimodal mapping study of conduction aphasia with impaired repetition and spared reading aloud
Conduction aphasia as a function of the dominant posterior perisylvian cortex. Report of two cases.
TLDR
The authors report two cases that demonstrate that conduction aphasia is cortically mediated and can be inadequately assessed if not specifically evaluated during brain mapping, and a localization of language repetition to the posterior perisylvian cortex.
Phonological agraphia after superior temporal gyrus infarction.
TLDR
This patient showed a selective impairment of phonological agraphia in association with a focal infarction restricted to the left posterior superior temporal gyrus, suggesting that this region of the brain is an important node within a wider network of areas that subserve the phonological route for writing.
A functional magnetic resonance imaging study of the role of left posterior superior temporal gyrus in speech production: implications for the explanation of conduction aphasia
Arcuate fasciculus variability and repetition: The left sometimes can be right
A Review of Conduction Aphasia
  • A. Ardila
  • Psychology
    Current neurology and neuroscience reports
  • 2010
TLDR
It is concluded that conduction aphasia remains a controversial topic not only from the theoretic point of view, but also from the understanding of its neurologic foundations.
Disentangling phonological and articulatory processing: A neuroanatomical study in aphasia
Conduction aphasia, sensory-motor integration, and phonological short-term memory – An aggregate analysis of lesion and fMRI data
Dysgraphia in two forms of conduction aphasia
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