Developmental relationship between language and joint attention in late talkers.

Area of Science:

• Developmental Psychology
• Linguistics
• Child Language Acquisition

Background:

• Joint attention (JA) is crucial for language development.
• Late-talking (LT) children may exhibit differences in communication strategies.
• Understanding the relationship between JA and language in LT children is important.

Purpose of the Study:

• To investigate the relationship between expressive and receptive language and JA bids in late-talking children.
• To compare JA bid frequency and its relation to language function between LT and typically developing (TD) children.
• To explore communication strategies in LT children during language acquisition.

Main Methods:

• Longitudinal study over 10 months with three data collection points.
• Comparison of 25 late-talking (LT) children (26 months) with 25 typically developing (TD) children (21 months).
• Assessment of joint attention bids and language comprehension and production.

Main Results:

• LT children showed no difference in JA bid frequency compared to TD children.
• TD children demonstrated a positive relationship between high JA bids and language function.
• In LT children, JA bids were not significantly related to language comprehension or production.

Conclusions:

• TD children integrate nonverbal (JA) and verbal communication.
• LT children appear to use nonverbal and verbal means separately in communication.
• This suggests a distinct developmental pathway for communication in late-talking children.