Emerging attunement to native phonotactics in French-learning infants: A developmental event-related potential study

Area of Science:

• Psycholinguistics
• Developmental Neuroscience
• Speech Perception

Background:

• Infants' sensitivity to phonotactic rules suggests early language attunement.
• Adult speakers perceptually repair illegal sound sequences.
• The timing of phonotactic repair development in infants remains unclear.

Purpose of the Study:

• To investigate neural evidence of phonotactic repair in French-learning infants.
• To examine the */tl/>/kl/ repair mechanism.
• To determine the influence of age and individual neural response patterns on phonotactic repair.

Main Methods:

• Habituation-dishabituation paradigm using auditory stimuli.
• Event-related potentials (ERPs) recorded in response to target sounds.
• Analysis of ERP amplitudes to identify the phonotactic repair effect.

Main Results:

• A phonotactic repair effect was observed in infants.
• The repair effect's emergence varied based on infant age and neural response polarity.
• "Positive responders" showed repair independent of age, while "negative responders" showed it at 14 months.

Conclusions:

• Neural mechanisms for phonotactic repair are present early in some infants.
• Early language development involves interplay between individual maturation and chronological age.
• Findings advance understanding of the timeline for phonotactic rule acquisition in infants.