2023 Volume 43 Issue 1 Pages 23-32
We reported a case of transition from deep dysphasia to phonological dysphasia. A woman in her early 70s suffered cerebral infarction after a craniotomy for left trigeminal schwannoma and presented with characteristic problems of verbal repetition. That is, shortly after onset, semantic paraphasia was exhibited at repetition, but at 20 months after onset, a semantic paraphasia had disappeared and the patient showed formal paraphasia and phonological errors when repeating low-image words. At both time points, lexicality effect and imageability effect in the repetition were recognized in common, so this case was considered to present with transition from deep dysphasia to phonological dysphasia. Her symptoms also suggested that the transition from deep dysphasia to phonological dysphasia was due to the degree of impairment in both phonological input/output (acoustic to phonological conversion, auditory input lexicon, phonological assembly) and word meaning comprehension.
