Relationship between early pronunciation processes and later pronunciation skill

Area of Science:

• Child language acquisition
• Speech-language pathology
• Phonological development

Background:

• Early phonological processes are crucial for syllable maintenance in polysyllabic words.
• Individual differences in phonological process use emerge early in development.

Purpose of the Study:

• To investigate longitudinal phonological development in two children with distinct early phonological processes.
• To determine if early phonological process use predicts later pronunciation skills.

Main Methods:

• Longitudinal study of two boys at three time points (ages 1:10, 3:8, 6:0).
• Analysis of phonological processes used for syllable maintenance in polysyllabic words.
• Tracking the rate of phonological process dissolution over time.

Main Results:

• Children exhibited persistent differences in phonological process types and frequencies.
• One child, using glottal and glide replacement, showed a slower rate of process dissolution, particularly for affricates and clusters.
• The other child, using assimilation and reduplication, demonstrated a faster rate of process dissolution.

Conclusions:

• Early phonological processes in polysyllabic words may predict later continuous speech production skills.
• Individual trajectories of phonological development exist.
• The type and persistence of early phonological processes can inform predictions about later speech sound development.