Is speech categorization consistency achieved in part through lexical knowledge?

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Observational analysis revealed that lexical knowledge stabilizes categorization consistency in speech, indicating its role in L1 and L2 learning.

Categorization consistency was significantly higher for word continua compared to nonword continua.
Preliminary results suggest that lexical knowledge enhances categorization consistency but does not affect slope.
This study used Visual Analog Scaling tasks to assess categorization consistency in American English listeners.
The findings support the role of lexical knowledge in auditory clean-up during speech categorization.

Kim et al. (2025) studied this question.

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Observational analysis revealed that lexical knowledge stabilizes categorization consistency in speech, indicating its role in L1 and L2 learning.