Re(de)fining the orthographic neighbourhood: The role of addition and deletion neighbours in lexical decision and reading

Colin J Davis, Manuel Perea, Joana Acha

Research output: Contribution to journalArticle (Academic Journal)peer-review

62 Citations (Scopus)

Abstract

The influence of addition and deletion neighbors on visual word identification was investigated in four experiments. Experiments 1 and 2 used Spanish stimuli. In Experiment 1, lexical decision latencies were slower and less accurate for words and nonwords with higher-frequency deletion neighbors (e.g., jugar in juzgar), relative to control stimuli. Experiment 2 showed a similar interference effect for words and nonwords with higher-frequency addition neighbors (e.g., conejo,
which has the addition neighbor consejo), relative to control stimuli. Experiment 3 replicated this addition neighbor interference effect in a lexical decision experiment with English stimuli. Across all three experiments, interference effects were always evident for addition/deletion neighbors with word-outer overlap, usually present for those with word-initial overlap, but never present for those
with word-final overlap. Experiment 4 replicated the addition/deletion neighbor inhibitory effects in a Spanish sentence reading task in which the participants’ eye movements were monitored. These findings suggest that conventional orthographic neighborhood metrics should be redefined. In addition to its methodological implications, this conclusion has significant theoretical implications
for input coding schemes and the mechanisms underlying word recognition.
Original languageEnglish
Pages (from-to)1550-1770
Number of pages21
JournalJournal of Experimental Psychology: Human Perception and Performance
Volume35
Issue number5
DOIs
Publication statusPublished - 2009

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