摘要：Individuals with agrammatic aphasia show difficulty producing verb morphology (Menn & Obler, 1990). Varioustasks ranging from spontaneous speech to constrained sentence level tasks have been used to detail these deficits andvarious subsets of verb inflections have been tested, resulting in mixed findings. In studies comparing finite ( walks,walked ) vs. nonfinite inflection forms (walking, to walk ), agrammatic speakers produced more errors with finite thannonfinite forms (LaPointe, 1985; Lee et al., 2008). Although less is known about production of verb morphology influent aphasia, recent research suggests that fluent aphasic speakers may also experience greater difficulty with finitecompared to nonfinite verbs in spontaneous speech (Bastiaanse, 2011).
