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Discourse Production of Czech Speakers with Aphasia: A Usage-based Exploration
Láznička, Michal ; Lehečková, Eva (advisor) ; Hatchard, Rachel (referee) ; Marková, Jana (referee)
The research in linguistic aphasiology has been dominated by structuralist, rule-based approaches to the study of langauge. However, recent work has shown that analyses based in constructivist, usage-based frameworks can provide explanations to patterns of language processing in aphasia that are difficult to accommodate in structuralist models. The present work follows up on these findings and aims to provide additional evidence for the benefits of the usage-based model by using data from Czech speakers with aphasia, an understudied language in this context. The aims of the study were threefold: to create a collection of samples of aphasic connected speech available to other researchers, to provide a description of the patterns of aphasic discourse production in Czech, and, most importantly, to show potential benefits of usage-based construction grammar for aphasia research. A corpus of the speech of eleven persons with fluent and non-fluent aphasia of varying degrees of severity was created. The corpus consist of more than 23000 word position produced by speakers with aphasia in tasks used to elicit conversational, narrative, descriptive, and procedural discourse. The corpus is lemmatized and morphologically tagged and the transcripts are aligned with audio recordings. A smaller sample of three,...
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