At the phonological level, languages differ with respect to the amount of structural complexity
they permit. However, even though a language may permit complex structures (eg, onset
consonant clusters), the grammar still differentiates the complex structures from less marked
structures (eg, singleton onset consonants) which are also permitted in the language. This
paper explores the performance of VBR, an aphasic English speaker, whose deficit has
affected her grammar by disallowing previously permitted marked forms, and thus …