Priming nouns and verbs: DiVerential inXuences of semantic and grammatical cues in the two cerebral hemispheres  

Oleh:

Arambel, Stella R. ; Chiarello, Christine

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 97 no. 1 (2006), page 12-24.
Topik: Cerebral asymmetries; Nouns; Verbs; Sentences priming
Fulltext: 97_01_Arambel.pdf (380.71KB)

Isi artikel

The current experiment investigated how sentential form-class expectancies inXuenced lexical-semantic priming within each hemisphere. Sentences were presented that led readers to expect a noun or a verb and the sentence-Wnal target word was presented to one visual Weld/hemisphere for a lexical decision response. Noun and verb targets in the semantically related condition were compared to an unrelated prime condition, which also predicted part of speech but did not contain any lexical-semantic associates of the target word. The semantic priming eVect was strongly modulated by form-class expectancy for RVF/LH targets, for both nouns and verbs. In the LVF/RH, semantic priming was obtained in all conditions, regardless of whether the form-class expectancy was violated. However, the nouns that were preceded by a noun-predicting sentence showed an extremely high priming value in the LVF/RH, suggesting that the RH may have some sensitivity to grammatical predictions for nouns. Comparisons of LVF/RH priming to calculations derived from the LSA model of language representation, which does not utilize word order, suggested that the RH might derive message-level meaning primarily from lexical-semantic relatedness.

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