Lexical network properties in aphasic discourse production.
Evaluating discourse production provides an effective means of assessing the language competence of persons with aphasia (PWA) in naturalistic and ecologically valid communication contexts. Existing research on PWA discourse has focused on discrete linguistic measures such as sample length or type-t...
| Publicado en: | Clinical Linguistics & Phonetics Vol. 40; no. 2; pp. 187 - 206 |
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| Autores principales: | , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Feb2026
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=191348822&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 191348822 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 02699206 B6X jtl: Clinical Linguistics & Phonetics issn: 02699206 maglogo: Y pubinfo: dt: Feb2026 vid: 40 iid: 2 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 191348822 185645360 191348822 191348822 10.1080/02699206.2025.2507049 191348822 ppf: 187 ppct: 19 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Lexical network properties in aphasic discourse production. aug: au: Chen, Juqiang Chang, Hui affil: School of Foreign Languages, Shanghai Jiao Tong University, Shanghai, P. R. China sug: subj: Aphasia Discourse Analysis Speech Production Measurement Semantics Language Disorders Linguistics Funding Source Human T-Tests Descriptive Statistics Data Analysis Software Storytelling Task Performance and Analysis Communication Language Tests Adult Middle Age Adult: 19-44 years Middle Aged: 45-64 years ab: Evaluating discourse production provides an effective means of assessing the language competence of persons with aphasia (PWA) in naturalistic and ecologically valid communication contexts. Existing research on PWA discourse has focused on discrete linguistic measures such as sample length or type-token ratios. To provide a holistic view of the interconnections of linguistic entities in PWA discourse, this study compared the lexical networks of discourse produced by PWA with those by healthy controls. At the macro level, PWA networks showed a smaller size and diameter but higher density compared to those of healthy controls. In addition, networks of both groups showed small-world characteristics. However, the degree of small-worldness was lower for the networks of PWA compared to those of healthy controls. At the meso level, network modularity measures of healthy controls were larger than those of PWA in the story-narrative task. At the micro level, the degrees of nodes in the networks of both groups followed a power-law distribution, suggesting that their networks were scale-free. Our findings reveal that lexical networks of PWA discourse are constrained and less efficient but still retain some basic characteristics of typical language networks. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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