title: A distributional model of semantic context effects in lexical processinga
creator: McDonald, Scott
creator: Brew, Chris
subject: Psycholinguistics
description: One of the most robust findings of experimental psycholinguistics is that the context in which a word is presented influences the effort involved in processing that word. We present a novel model of contextual facilitation based on word co-occurrence prob ability distributions, and empirically validate the model through simulation of three representative types of context manipulation: single word priming, multiple-priming and contextual constraint. In our simulations the effects of semantic context are mod eled using general-purpose techniques and representations from multivariate statistics, augmented with simple assumptions reflecting the inherently incremental nature of speech understanding. The contribution of our study is to show that special-purpose m echanisms are not necessary in order to capture the general pattern of the experimental results, and that a range of semantic context effects can be subsumed under the same principled account.›o
date: 2002
type: Preprint
type: NonPeerReviewed
format: application/pdf
identifier: http://cogprints.org/3119/1/McDonald_Brew.pdf
identifier:   McDonald, Scott and Brew, Chris  (2002) A distributional model of semantic context effects in lexical processinga.  [Preprint]     
relation: http://cogprints.org/3119/