Familial developmental dysphasia
Familial developmental dysphasia
Definition
Familial developmental dysphasia is a severe form of developmental verbal apraxia characterized by a deficit in spontaneous speech, writing, grammatical judgment and repetition, defective articulation, moderate to severe degree of dyspraxia, a reduced use of consonant clusters, and comprehension delay. Hearing and intelligence are normal.
Also known as Billard-Toutain-Maheut syndrome, FOXP2-associated dysphasia — per MONDO