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Effet du contexte lexical sur l'accès à la signification des homographes polarisés

Abstract : The aim of the present thesis is to determine homograph representation in memory. Different hypotheses were identified in the symbolic theoretical framework. Two criteria differentiate these hypotheses. The first contrasts the assumption of a distinct lexical entry for each meaning of a homograph with the assumption of a common entry for all meanings. The second criterion relies on a competition or not between the representations of the two meanings. Five lexical decision experiments were conducted in order to investigate the effect of a single word context effect on polarized homographs meaning access. Each trial consisted of the visual presentation of a context word, a homograph and a target word. Results show an activation of the two meanings whatever the context and no inhibition when the context and target words were related to different meanings. Moreover, the context increased the activation of its related meaning. Two other experiments investigated lexical context effect on homographs lexical decision times. Response times were shorter on homographs than on unambiguous word and were not slowed down when the context was related to the subordinate meaning. The pattern of results supports the hypothesis assuming a common lexical entry and no competition between the meanings of a homograph.
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Submitted on : Saturday, September 17, 2005 - 1:04:56 PM
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Pierre Thérouanne. Effet du contexte lexical sur l'accès à la signification des homographes polarisés. Psychologie. Université de Provence - Aix-Marseille I, 2000. Français. ⟨tel-00010189⟩

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