Speech and Language Therapy for Aphasia: Parameters and Outcomes
Aphasiology
Thomas, L., Lander, L., et al. (2020).
Aphasiology, 34(5), 603-642.
This systematic review examines the effects of picture naming treatments on the word retrieval skills of individuals with acquired aphasia. As a follow up, a second review investigates the impact of varying treatment dosage on communication outcomes.
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Between subject and crossover subject designs
48 studies (review 1); 17 studies (review 2)
Picture naming treatments had a large positive effect on improved language outcomes (i.e., treated words) with a smaller effect for untreated words. Findings also suggest that treatment provided in high-dosage conditions was more beneficial than treatment provided in low dosage conditions. Findings were mixed when comparing massed versus distributive practice. Further well-powered research is needed to determine the specific dosage and duration of treatment needed for individuals with aphasia.
