Atypical conduction aphasia and the right hemisphere: Cross-hemispheric plasticity of phonology in a developmentally dyslexic and dysgraphic patient with early left frontal damage.
Neurocase
; 17(2): 93-111, 2011.
Article
in En
| MEDLINE
| ID: mdl-20818576
ABSTRACT
We report the rare case of a patient, JNR, with history of mixed handedness, developmental dyslexia, dysgraphia, and attentional deficits associated with a Klippel-Trenaunay syndrome and a small subcortical frontal lesion involving the left arcuate fasciculus. In adulthood, he suffered a large right perisylvian stroke and developed atypical conduction aphasia with deficits in input and output phonological processing and poor auditory-verbal short-term memory. Lexical-semantic processing for single words was intact, but he was unable to access meaning in sentence comprehension and repetition. Reading and writing deficits worsened after the stroke and he presented a combination of developmental and acquired dysgraphia and dyslexia with mixed lexical and phonological processing deficits. This case suggest that a small lesion sustained prenatally or early in life could induce a selective rightward shift of phonology sparing the standard left hemisphere lateralisation of lexical-semantic functions.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Aphasia, Conduction
/
Agraphia
/
Dyslexia
/
Frontal Lobe
/
Neuronal Plasticity
Type of study:
Etiology_studies
Limits:
Adult
/
Female
/
Humans
/
Middle aged
Language:
En
Journal:
Neurocase
Journal subject:
CIENCIAS DO COMPORTAMENTO
/
NEUROLOGIA
/
PSICOLOGIA
/
PSIQUIATRIA
Year:
2011
Document type:
Article
Affiliation country:
Spain