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

  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},
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… 
The role of the arcuate fasciculus in conduction aphasia.
Clinical and neurophysiological findings may suggest that the AF is not required for repetition although could have a subsidiary role in it.
Conduction aphasia as a function of the dominant posterior perisylvian cortex. Report of two cases.
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.
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 Review of Conduction Aphasia
  • A. Ardila
  • Psychology
    Current neurology and neuroscience reports
  • 2010
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.
Dysgraphia in two forms of conduction aphasia


Crossed dextral aphasia: A clinical radiological correlation
  • P. Yarnell
  • Medicine, Psychology
    Brain and Language
  • 1981
Conduction aphasia. A clinicopathological study.
Three patients with conduction aphasia are described; in addition to the distinctive language disorder, two of them had severe ideomotor apraxia while the other was entirely free ofApraxia, and a review of the literature would propose the following.
Conduction aphasia and arcuate fasciculus
Three patients are presented who developed conduction aphasia after a small infarction almost exclusively confined to the arcuate fasciculus, which shows a rapid amelioration within a week after the stroke.
Sigmund Freud and the diagram-maker school of aphasiology
Crossed aphasia in a dextral
A patient with a right hemispheric infarction and left hemiplegia with aphasia is described, without personal or family history of left-handedness o r pr ior brain disease.
The anatomy of phonological and semantic processing in normal subjects.
Brain activation was assessed in the temporal, parietal and frontal multi-modal association areas that constitute parts of a large network that represent the specific anatomic substrate of the lexico-semantic processing of language.