Language Outcomes, Mechanisms, and Trajectories in Adults With and Without Developmental Language Disorder

Launched by UNIVERSITY OF IOWA · Mar 25, 2025

Keywords

ClinConnect Summary

This clinical trial is studying how adults with Developmental Language Disorder (DLD) compare to those with typical language skills, focusing on their long-term language abilities and the underlying reasons for any differences. Researchers are looking at data from a previous study that followed individuals from childhood into adulthood, specifically targeting those aged 30 to 35. They want to see how language skills evolve over time, whether some individuals with DLD catch up to their peers, or if others may experience difficulties or remain stable in their language abilities.

To participate, you need to be an adult aged 28 to 40 who has either DLD or typical language skills and has previously taken part in the Iowa Longitudinal Study. Participants will undergo various assessments to understand their language performance and cognitive skills. Importantly, you should have normal or corrected vision and hearing, and you should not have a history of brain injury or other developmental disabilities. If you join the study, you can expect to contribute to important research that helps improve our understanding of language development and communication challenges in adults.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Adults with Developmental Language Disorder (DLD) and those with typical language (TL) between the ages of 28 and 40 years who participated in the Iowa Longitudinal Study(NIH-DC-19-90 \& P50 DC002746; IRB# 200106051, "Collaboration on Specific Language Impairment".)
• • Aged 30-35
• • Normal or corrected to normal vision
• • Normal hearing
• Exclusion Criteria:
• • history of brain injury
• • history of neural developmental disabilities
• • not monolingual