Agrammatism, syntactic theory and the lexicon: Broca's area and the development of linguistic ability in the human brain. Comment to "The Neurology of Syntax: Language use without Broca's area" by Yosef Grodzinsky

Grodzinsky's tree-pruning hypothesis may be extended to explain agrammatic comprehension disorders. Although agrammatism is evidence for syntactic modularity, there is no evidence for its anatomical modularity and frontal lobe localization. Rather than from the damage of an anatomic module in the LH agrammatism result from a diffuse LH damage allowing the emergence of the limited RH linguistic competence