phonological dyslexia
Reading disorder characterized by impaired ability to decode unfamiliar words using sound-letter correspondence rules.
Full Definition
Phonological dyslexia is a specific type of acquired reading disorder that primarily affects the ability to read unfamiliar words and nonwords through phonological decoding. Patients with this condition can often read familiar words relatively well but struggle significantly with novel words, made-up words, or words they have not encountered before. The disorder results from dysfunction in the phonological reading route, which converts letters to sounds according to grapheme-phoneme correspondence rules. This condition is typically associated with damage to the left hemisphere language areas, particularly the temporoparietal region.
Usage
Usage note: Part of the dual-route model of reading; contrasts with surface dyslexia.
In Context
- "The patient's phonological dyslexia was evident in their inability to read pseudowords during assessment." — Reading evaluation report
- "Speech therapy targeted phonological awareness skills to address the underlying phonological dyslexia." — Treatment intervention plan