Disorders of Language Flashcards
Define Aphasia
Disorder of language
Non fluent aphasia
Broca’s
Fluent aphasia
Wernicke’s
what type is conductive aphasia?
Fluent, good comprehension but poor repetition
what type is transcortical aphasia?
non fluent, no spontaneous language but good repetition
if there is a resection of the corpus callosum visual information of the which visual field cannot be NAMED?
Left visual field (as it is processed by the right cortex)
98% of the population have language on their —– hemisphere
left
What artery supplies both broca’s and wernicke’s area?
Middle Cerebral Artery
What division of the MCA supplies Broca’s area?
Superior
What division of the MCA supplies Wernicke’s area?
Inferior
What is the arcuate fasciculus?
hypothetical white matter tract linking Broca’s and Wernicke’s areas
Describe Broca’s Aphasia?
no fluid sentences, meaning present, content if there.
PATIENT tends to show right face and arm weakness
Describe Wernicke’s Aphasia?
fluid sentences, no meaning, impaired selection of content, neologism paraphrasic errors. limited or impaired comprehension
PATIENT shows disturbances in visual fields
What are the two possible mechanisms to deal with damage to the language centres?
Contralateral Transfer
Ipsilateral Reorganisation
Contralateral Transfer happens in the context of
hemispherectomy (recovery only if very young thanks to plasticity)
