Language Mapping in Aphasia
Autor: | Melodie Yen, Sarah M. Schneck, Stephen M. Wilson, Dana K. Eriksson, Jillian M. Lucanie, Andrew T. DeMarco |
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Rok vydání: | 2019 |
Předmět: |
Forum: Advances in Neuroplasticity Research on Language Recovery in Aphasia
Linguistics and Language media_common.quotation_subject Semantics Language and Linguistics Speech and Hearing Phonetics Aphasia medicine Humans Language Semantic matching media_common Brain Mapping Cognitive map medicine.diagnostic_test Rhyme Reproducibility of Results Phonology Magnetic Resonance Imaging medicine.symptom Syllable Functional magnetic resonance imaging Psychology Forecasting Cognitive psychology |
Zdroj: | J Speech Lang Hear Res |
ISSN: | 1558-9102 1092-4388 |
DOI: | 10.1044/2019_jslhr-l-rsnp-19-0031 |
Popis: | PurposeRecovery from aphasia is thought to depend on neural plasticity, that is, functional reorganization of surviving brain regions such that they take on new or expanded roles in language processing. To make progress in characterizing the nature of this process, we need feasible, reliable, and valid methods for identifying language regions of the brain in individuals with aphasia. This article reviews 3 recent studies from our lab in which we have developed and validated several novel functional magnetic resonance imaging paradigms for language mapping in aphasia.MethodIn the 1st study, we investigated the reliability and validity of 4 language mapping paradigms in neurologically normal older adults. In the 2nd study, we developed a novel adaptive semantic matching paradigm and assessed its feasibility, reliability, and validity in individuals with and without aphasia. In the 3rd study, we developed and evaluated 2 additional adaptive paradigms—rhyme judgment and syllable counting—for mapping phonological encoding regions.ResultsWe found that the adaptive semantic matching paradigm could be performed by most individuals with aphasia and yielded reliable and valid maps of core perisylvian language regions in each individual participant. The psychometric properties of this paradigm were superior to those of other commonly used paradigms such as narrative comprehension and picture naming. The adaptive rhyme judgment paradigm was capable of identifying fronto-parietal phonological encoding regions in individual participants.ConclusionAdaptive language mapping paradigms offer a promising approach for future research on the neural basis of recovery from aphasia.Presentation Videohttps://doi.org/10.23641/asha.10257584 |
Databáze: | OpenAIRE |
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