Treatment of verbal short-term memory abilities to improve language function in aphasia: A case series treatment study

Autor: Jessica Obermeyer, Julie Schlesinger, Nadine Martin, Samantha Rosenberg, Irene Minkina
Rok vydání: 2020
Předmět:
Zdroj: Neuropsychol Rehabil
ISSN: 1464-0694
0960-2011
Popis: Recent approaches to interventions for aphasia have incorporated verbal short-term memory (STM) and working memory (WM) components. We were interested in whether a treatment involving repetition of word sequences after a response delay would improve tolerance of increased verbal STM load in repetition and, consequently, improve performance on repetition and other language tasks. Eight individuals with aphasia participated. We used a single subject design with outcome measures on near-transfer tasks closely related to the treatment task and far-transfer tasks more distantly related to the treatment task. We controlled for a confound between effects of repeated exposure of treated items and effects of the STM component of repetition by minimizing repeated presentation of stimulus words in all phases of treatment. Four participants demonstrated modest acquisition effects. Some participants improved on near-transfer tasks, repetition of concrete and abstract word strings (three participants) and verbal spans (eight participants). Improvements on far-transfer tasks included naming (one participant) and discourse measures (three participants). Improvements were most evident for those participants who demonstrated a significant decline in word repetition accuracy after a response delay before treatment was initiated, suggesting that this treatment may be a good fit for individuals whose word processing deficit involves a specific difficulty in maintaining activation of linguistic representations. More studies are needed to determine who will respond to this treatment and what factors might influence the effectiveness of this treatment approach (e.g., severity of impairment).
Databáze: OpenAIRE