Lexical retrieval in fluent and nonfluent aphasia: a network analysis of verbal fluency data.

ABSTRACT: Lexical retrieval is commonly impaired in many persons with aphasia (PWA). Verbal fluency tasks are often used to assess lexical retrieval ability. However, common methods of analyzing verbal fluency data (e.g., total number of appropriate responses, clustering and switching) fail to adequately capture the underlying organization of the mental lexicon. To better understand the nature of lexical-semantic organization in aphasia, this study applied a semantic network approach to verbal fluency data obtained from 120 healthy controls and 127 PWA (64 fluent and 63 nonfluent). Participants named as many animal category members as they could in 1 min, and their responses were converted into semantic networks. Global network metrics were computed for each group, including average shortest path le

SUBMITTER: Pham CT 

PROVIDER: S-EPMC12714882 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature