An on-line investigation of lexical ambiguity processing in schizophrenia

David Copland*, Helen Chenery, Greg Savage, John McGrath

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The processing of lexical ambiguity in context was investigated in eight individuals with schizophrenia and a matched control group. Participants made speeded lexical decisions on the third word in auditory word triplets representing concordant (coin-bank-money), discordant (river-bank-money), neutral (day-bank-money), and unrelated (river-day-money) conditions. When the interstimulus interval (ISI) between the words was 100 ms, individuals with schizophrenia demonstrated priming consistent with selective, context-based lexical activation. At 1250 ms ISI, a pattern of nonselective meaning facilitation was obtained. These results suggest an attentional breakdown in the sustained inhibition of meanings on the basis of lexical context.

Original languageEnglish
Pages (from-to)324-327
Number of pages4
JournalBrain and Cognition
Volume48
Issue number2-3
Publication statusPublished - 2002
Externally publishedYes

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