Linguistic characteristics of primary progressive aphasia in a verb-final language.

IF 0.6 4区医学 Q4 CLINICAL NEUROLOGY Neurocase Pub Date : 2024-12-05 DOI:10.1080/13554794.2024.2437152

Jee Eun Sung, Eun-Joo Kim, Sujin Choi, Jee Hyang Jeong

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引用次数: 0

Abstract

Purpose: The current study aimed to examine the linguistic characteristics of Korean-speaking individuals diagnosed with primary progressive aphasia(PPA).

Methods: Two individuals with agrammatic/non-fluent variants of nfvPPA and two with semantic variants of svPPA participated in this study. Picture description tasks were used to collect connected speech samples. Analysis focused on linguistic variables, including quantitative(number of utterances, words, nouns, and verbs), syntactic(mean length of utterance in morphemes, case markers per utterance, predicates per utterance), and semantic variables(correct information units, verb types). Additionally, participants completed two types of confrontation naming tasks.

Results: The nfvPPA group exhibited fewer linguistic units overall compared to the svPPA group, with noun-verb dissociation apparent only in the nfvPPA group. The svPPA group showed poorer performance in content-related linguistic variables. A notable clinical symptom specific to Korean, case marker deficits, was observed in the nfvPPA group.

Discussion: The study identified distinct linguistic patterns associated with the subtype of PPA in Korean speakers. The evaluation and interpretation of Korean-specific linguistic variables are crucial for classifying Korean-speaking individuals with PPA. Understanding these variables can enhance our comprehension of the unique linguistic deficits present in Korean PPA, particularly in relation to confrontation naming tasks and their implications for diagnosis and classification.

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来源期刊

Neurocase 医学-精神病学

CiteScore

1.40

自引率

12.50%

发文量

审稿时长

6-12 weeks

期刊介绍： Neurocase is a rapid response journal of case studies and innovative group studies in neuropsychology, neuropsychiatry and behavioral neurology that speak to the neural basis of cognition. Four types of manuscript are considered for publication: single case investigations that bear directly on issues of relevance to theoretical issues or brain-behavior relationships; group studies of subjects with brain dysfunction that address issues relevant to the understanding of human cognition; reviews of important topics in the domains of neuropsychology, neuropsychiatry and behavioral neurology; and brief reports (up to 2500 words) that replicate previous reports dealing with issues of considerable significance. Of particular interest are investigations that include precise anatomical localization of lesions or neural activity via imaging or other techniques, as well as studies of patients with neurodegenerative diseases, since these diseases are becoming more common as our population ages. Topic reviews are included in most issues.