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Variation in the strength of lexical encoding across dialects
Cynthia G Clopper1, Terrin N Tamati2, Janet B Pierrehumbert3
1Ohio State University, USA.
Journal of Phonetics
|January 3, 2017
Summary
Familiar dialects like Midland American English are processed faster than unfamiliar ones like Northern American English. This suggests stronger lexical encoding for familiar dialects, impacting speech recognition.
Area of Science:
- Psycholinguistics
- Sociolinguistics
- Cognitive Science
Background:
- Lexical processing speed and accuracy vary with dialect familiarity.
- Dialect differences may stem from variations in lexical encoding strength.
Purpose of the Study:
- To test if dialect differences in lexical processing reflect encoding strength.
- To distinguish lexical encoding from lexical recognition across American English dialects.
Main Methods:
- Lexical processing tasks comparing Midland and Northern American English.
- Experiments conducted in the Midland region with local and Northern listeners.
- Analysis of repetition benefits and cross-dialect interference effects.
Main Results:
- Midland dialect processed faster than Northern dialect.
- Significantly larger priming and interference effects for Midland dialect.
- Effects were more pronounced for stimuli presented in noise.
Conclusions:
- Lexical information is more strongly encoded for local (Midland) than non-local (Northern) dialects.
- Cognitive processing costs for dialect normalization lead to weaker encoding under challenging conditions.
- Findings support the role of encoding strength in dialect processing differences.
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