Brain activation during a linguistic task in conduction aphasia

Cortex. 1991 Jun;27(2):285-94. doi: 10.1016/s0010-9452(13)80133-5.

Abstract

In order to investigate functional cortical reorganization during recovery from conduction aphasia, regional cerebral blood flows (rCBF) were measured by the two-dimensional 133 Xenon inhalation method in ten stroke patients. rCBF measurements were performed at rest and during the performance of a linguistic task, one month and three months after onset. The analysis of flow changes from rest to test condition indicates an increasing contribution of the right hemisphere as time goes on. The absence of flow increase in Broca's region suggests that this region is definitively disconnected from posterior language "centers" by the arcuate fasciculus lesion.

MeSH terms

  • Aged
  • Anomia / physiopathology
  • Anomia / psychology
  • Anomia / rehabilitation
  • Aphasia, Wernicke / physiopathology*
  • Aphasia, Wernicke / psychology
  • Aphasia, Wernicke / rehabilitation
  • Arousal / physiology
  • Brain Mapping
  • Cerebral Cortex / blood supply
  • Cerebral Cortex / physiopathology*
  • Cerebrovascular Circulation / physiology
  • Dominance, Cerebral / physiology*
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Middle Aged
  • Neuropsychological Tests