Can Script Training Improve Narrative and Conversation in Aphasia across Etiology?
H Isabel Hubbard, Lori A Nelson, Jessica D Richardson
PMID 31869852WHAT IT FOUND
Script training improves spoken language in aphasia by turning rehearsed narratives into automatic speech.
It works for stroke-induced and progressive aphasia, using video or audio models to guide practice in therapy or at home.
Key findings
01Script training consistently improves script acquisition, speaking rate, and fluency, with some generalization to untrained conversation.
02In primary progressive aphasia, treatment leads to long-term retention of baseline abilities and short- and long-term improvements.
03Video-implemented script training improved intelligibility and reduced syntactic errors in non-fluent/agrammatic primary progressive aphasia, with maintenance at one year.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
This is a narrative review, not a systematic review or meta-analysis, so it does not provide pooled effect sizes or assess the quality of individual studies rigorously. The review notes that efficacy and effectiveness research is still developing, particularly regarding how to optimally match approaches to individuals with varied symptomatology. Most evidence cited is from single-group or small pilot studies rather than large, controlled randomized trials. The review acknowledges that the long-term benefits of training in the context of continuing progression in PWPA are relatively unknown, with few studies following participants longer than 6-8 months.
Declared interests
The paper is supported by the National Institutes of Health (N.I.H., Extramural) and Non-U.S. Gov't research support. No specific commercial conflicts of interest are declared in the text provided, though the review discusses proprietary tools like AphasiaScripts and VAST.
The easy way to misread this
Do not assume script training will improve all aspects of communication or generalize equally across all aphasia types. The review indicates that while script production improves, generalization to untrained discourse varies, and in some progressive aphasia variants (like logopenic), overall output may decrease despite better scripted word use.