The breakdown of semantic knowledge: Insights from a statistical model of meaning representation  

Oleh:

Vinson, David P. ; Vigliocco, Gabriella ; Cappa, Stefano ; Siri, Simona

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 86 no. 3 (2003), page 347-365.
Topik: Category-specificity; Nouns; Verbs; Semantics; Simulation
Fulltext: 86_03_Vinson.pdf (333.12KB)

Isi artikel

Investigations of patients with semantic category-specific deficits have revealed a wide range of performance and variability in categories that are impaired or spared; this variability presents a challenge to accounts of category specificity. Accounts based only on impairment to semantic features of a particular type (e.g., visual), as well as accounts based only on featural properties (e.g., feature intercorrelations), are insufficient to explain the variability of patients' performance. A first goal of the paper is to discuss how a hybrid account incorporating both a level of organization according to feature types (a level of nonlinguistic conceptual representations) and a level of organization dictated by featural properties may provide a more comprehensive account of the cases reported in the literature. The second and most novel goal of the study reported here is to derive from our hybrid account a series of novel predictions concerning the representation and impairment of a different domain of knowledge: knowledge of actions and events, a domain of knowledge that has received remarkably little attention to date.

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