Abstract
This treatment study compared the two verb retrieval therapy, and examined whether two verb retrieval therapy have influence on sentence production. Utilising a single-subject ABBA design, three individuals (two Broca type, one Wernicke type)who have verb retrieval disorder, verb comprehension disorder, and sentence production disorder were trained under two conditions‐argument structure treatment and phonological treatment. Verbs were controlled for syllable length, familiarity, transitivity and argument structure properties. Narrative speech using four pictures was examined before and after each treatment. As a result, all three individuals showed significant effect in facilitating verb retrieval after treatment, and generalized improvement has occurred for untrained verbs. Both treatments revealed significant effects in increasing the number of verbs, argument structure, and morphologically correct argument structure in narrative speech. But postpositional particle disorder in narrative speech had remained in all individuals. It was found that verb retrieval treatment emphasizing phonology and argument structure have impact on facilitating verb retrieval and sentence production without direct treatment on sentence production.
