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Effect of working memory load and typicality (Obermeyer et al., 2021) ...
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Effect of working memory load and typicality (Obermeyer et al., 2021) ...
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Identifying Verbal Short-Term Memory and Working Memory Impairments in Individuals With Latent Aphasia
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In: Am J Speech Lang Pathol (2021)
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Sentence Recall in Latent and Anomic Aphasia: An Exploratory Study of Semantics and Syntax
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In: Brain Sci (2021)
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WORD LEARNING IN APHASIA: TREATMENT IMPLICATIONS AND STRUCTURAL CONNECTIVITY ANALYSES
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In: Top Lang Disord (2020)
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Abstract:
OBJECTIVE: Of current interest in aphasia research is the relevance of what we can learn from studying word learning ability in aphasia. In a preliminary study, we addressed two issues related to the novel word learning ability of individuals with aphasia. First, as word learning engages large-scale cognitive-linguistic systems (language skills, verbal short-term memory (STM), other memory and executive functions), we probed whether novel word learning practice in three people with aphasia could stimulate these language-related systems. Second, as lesion correlates affecting word learning in aphasia remain unclear, we examined whether the structural integrity of the left arcuate fasciculus (AF) in the same three individuals is related to outcomes of novel word learning practice. METHOD: To stimulate word learning systems, our three participants practiced for 4 weeks with an explicit novel word – novel referent word learning task, adopted from the Ancient Farming Equipment learning paradigm (Laine & Salmelin, 2010). The participants’ progress on receptive and expressive novel word learning was followed up, and their language and verbal STM abilities as well as single-session novel word learning (Learning to Name Aliens by Gupta, Martin, Abbs, Schwartz & Lipinski, 2006) were tested before and after the practice period. To address the second question, we analyzed the participants’ structural MRI scans with respect to the integrity of the left AF and its overlap with the lesion areas. RESULTS: All participants showed some receptive word learning in the trained task, as well as improvements in verbal STM span at posttest. Two of the three participants also showed improved performance on some of the language outcome measures. One participant with partially spared left AF, especially temporo-parietal connections, exhibited better word learning performance than the other two who had larger damage and disconnection of the AF. CONCLUSIONS: While the present results are preliminary, they open the possibility that novel word learning practice in aphasia may stimulate remaining word learning mechanisms in aphasia, and thereby influence language and verbal STM abilities. These results also suggest that preservation of novel word learning ability in aphasia in part depends on the integrity of the left arcuate track.
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URL: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7802821/ http://www.ncbi.nlm.nih.gov/pubmed/33442075 https://doi.org/10.1097/TLD.0000000000000204
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Evaluating the contribution of executive functions (Obermeyer et al., 2019) ...
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Evaluating the contribution of executive functions (Obermeyer et al., 2019) ...
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Priming sentence comprehension in aphasia: Effects of lexically independent and specific structural priming
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Maintenance Versus Transmission Deficits: The Effect of Delay on Naming Performance in Aphasia
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Assessment of linguistic and verbal short-term memory components of language abilities in aphasia
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Short-term memory span in aphasia: Insights from speech-timing measures
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The use of standardised short-term and working memory tests in aphasia research: a systematic review
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Effects of semantic context on access to words of low imageability in deep-phonological dysphasia: a treatment case study
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Novel word acquisition in aphasia: Facing the word-referent ambiguity of natural language learning contexts
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Novel word acquisition in aphasia: Facing the word-referent ambiguity of natural language learning contexts
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Using Virtual Technology to Promote Functional Communication in Aphasia (Kalinyak-Fliszar et al., 2015) ...
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Using Virtual Technology to Promote Functional Communication in Aphasia (Kalinyak-Fliszar et al., 2015) ...
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Using Virtual Technology to Promote Functional Communication in Aphasia: Preliminary Evidence From Interactive Dialogues With Human and Virtual Clinicians
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