Agrammatic aphasia (agrammatism), resulting from brain damage to regions of the brain involved in language processing, affects grammatical aspects of language. Therefore, research examining language breakdown (and recovery) patterns in agrammatism is of great interest and importance to linguists, neurolinguists, neuropsychologists, neurologists, psycholinguists and speech and language pathologists from all over the world. Research in agrammatism, studied across languages and from different perspectives, provides information about the grammatical structures that are affected by brain...