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Titolo:
An attractor model of lexical conceptual processing: Simulating semantic priming
Autore:
Cree, GS; McRae, K; McNorgan, C;
Indirizzi:
Univ Western Ontario, Dept Psychol, Social Sci Ctr, London, ON N6A 5C2, Canada Univ Western Ontario London ON Canada N6A 5C2 London, ON N6A 5C2, Canada
Titolo Testata:
COGNITIVE SCIENCE
fascicolo: 3, volume: 23, anno: 1999,
pagine: 371 - 414
SICI:
0364-0213(199907/09)23:3<371:AAMOLC>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
VISUAL WORD RECOGNITION; SPREADING ACTIVATION; CEREBRAL HEMISPHERES; CHILDRENS CONCEPTS; DECISION TASK; SINGLE-WORD; MEMORY; ASSOCIATION; CATEGORIES; RETRIEVAL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
68
Recensione:
Indirizzi per estratti:
Indirizzo: McRae, K Univ Western Ontario, Dept Psychol, Social Sci Ctr, London, ON N6A 5C2, Canada Univ Western Ontario London ON Canada N6A 5C2 ON N6A 5C2, Canada
Citazione:
G.S. Cree et al., "An attractor model of lexical conceptual processing: Simulating semantic priming", COGN SCI, 23(3), 1999, pp. 371-414

Abstract

An attractor network was trained to compute from word form to semantic representations that were based on subject-generated features. The model was driven largely by higher-order semantic structure. The network simulated tworecent experiments that employed items included in its training set (McRaeand Boisvert, 1998). In Simulation 1, short stimulus onset asynchrony priming was demonstrated for semantically similar items. Simulation 2 reproduced subtle effects obtained by varying degree of similarity. Two predictions from the model were then tested on human subjects. In Simulation 3 and Experiment 1,the items from Simulation 1 were reversed, and both the network and subjects showed minimally different priming effects in the two directions. In Experiment 2, consistent with attractor networks but contrary to a keyaspect of hierarchical spreading activation accounts priming was determined by featural similarity rather than shared superordinate category. overlapthat is a natural consequence of distributed representations of word meaning.

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Documento generato il 28/01/20 alle ore 14:54:36