Cross-language word segmentation by 9-month-olds

Area of Science:

• Developmental Psychology
• Linguistics
• Cognitive Science

Background:

• Infants' ability to segment words from fluent speech is crucial for language acquisition.
• The role of prosody, specifically stress patterns, in word segmentation is a key area of research.
• Understanding cross-language perception in infants can shed light on universal and language-specific aspects of language development.

Purpose of the Study:

• To investigate whether English-learning infants can segment Dutch words from fluent Dutch speech.
• To compare the word segmentation abilities of Dutch-learning and English-learning infants in Dutch.
• To explore the potential influence of cross-linguistic prosodic similarities on word segmentation.

Main Methods:

• Utilized the Headturn Preference Procedure (HPP) with 9-month-old infants.
• Infants were familiarized with specific Dutch word pairs.
• Tested infants on passages containing familiarized words versus control passages.

Main Results:

• Both Dutch-learning and English-learning infants demonstrated equivalent ability to segment familiarized Dutch words from fluent speech.
• English-learning infants successfully extracted target words from Dutch passages, despite phonetic differences.
• The findings suggest a robust capacity for word segmentation that transcends language-specific phonetic input.

Conclusions:

• 9-month-old English-learning infants possess the ability to segment words from a phonetically distinct language (Dutch).
• This cross-language segmentation ability suggests that infants may leverage general prosodic cues, such as stress patterns, common to both Dutch and English.
• The findings highlight the flexibility of early language learning mechanisms and the potential role of universal prosodic structures.