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Effects of Neighborhood Density on Adult Word Repetition
Skott E Freedman1, Jessica A Barlow2
1Department of Speech-Language Pathology and Audiology, Ithaca College, USA.
International Journal of English Linguistics
|October 6, 2015
Summary
Words with more neighbors improve recognition and repetition accuracy, contrary to previous assumptions. Misperceived words also tended to have denser neighborhoods, suggesting phonological influences on lexical competition.
Area of Science:
- Psycholinguistics
- Cognitive Science
- Phonology
Background:
- Lexical competition influences word recognition, with prior research focusing on semantic levels.
- Phonological effects on lexical competition remain less explored.
Purpose of the Study:
- To investigate phonological effects of lexical neighborhood density on word recognition and repetition.
- To analyze productions holistically and segmentally at the phonological level.
Main Methods:
- Administered a word repetition task to 46 adults using 80 stimuli varying in neighborhood density.
- Elicited verbal responses for holistic and segmental phonological analysis.
- Conducted error analysis comparing target words and substitutions based on neighborhood density.
Main Results:
- Words with higher neighborhood density were recognized and repeated more accurately.
- Substitutions for misperceived words were more likely to have higher neighborhood density.
- Word frequency did not influence the neighborhood density of substitutions.
Conclusions:
- Lexical neighborhood density, including phonological aspects, facilitates word recognition and repetition.
- Findings suggest a revised model of lexical competition incorporating phonological characteristics of the lexicon.
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