Language Outcomes, Mechanisms, and Trajectories in Adults With and Without Developmental Language Disorder (NCT06898671)
🩺 Plain-English Summary (8th-Grade Level)
The investigators' overall objective is to characterize the long-term outcomes of Developmental Language Disorder (DLD) in adulthood and to identify specific cognitive mechanisms mediating these outcomes. To address their objectives, the investigators utilize a large, pre-existing dataset and participant pool from one of the most comprehensive examinations of DLD to date: the Iowa Longitudinal Study. The investigators will re-recruit subjects with DLD and with typical language from this historic cohort, who are now adults (30-35 years old). In Aim 1, the investigators will use measures from kindergarten through 10th grade and collect new outcome measures in adulthood to characterize the long-term outcomes of DLD. The investigators predict that adults with DLD will diverge from adults with TL in language skills that are more complex and higher-level language skills that are important for communication in the workplace. Further, the investigators predict a fanning effect: some children with DLD will "catch up" to their TL peers in adulthood, some will show evidence of a decline, and others will show stable trajectories. In Aim 2, the investigators measure real-time competition across written and spoken language using eye-tracking. According to speed of processing accounts adults with DLD may be slower than their TL peers to activate competitors and targets. According to working memory accounts adults with DLD will show sustained competitor activation. Further, the investigators predict that measures related to the dynamics of competition (speed of activation and timing of competitor suppression) will account for variation in language outcomes in adults.
Who can join: Review the eligibility criteria below.
Location: Wendell Johnson Speech and Hearing Center — Iowa City, Iowa
Age range: 30 Years to 35 Years
🧪 Interventions in This Study
- Eye-Tracking in Visual World Paradigm (BEHAVIORAL)
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistFull eligibility criteria are available on the official NIH protocol. View the criteria ↗
📍 All Participating Trial Locations (1 Sites)
- Wendell Johnson Speech and Hearing Center — Iowa City, Iowa
📞 Contact the Study Coordinator
Phone: (319) 335-8701
Email: kristi-hendrickson@uiowa.edu
Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
More studies in Developmental Language Disorder
- Evaluation of an Explicit Approach — Minneapolis, Minnesota
- The Short-term Verbal Memory Endophenotype for Developmental Language Disorder Language Disorder — Omaha, Nebraska
- Optimizing Feedback-based Learning in Children With Developmental Language Disorder — Boston, Massachusetts
- Exercise Training in Children With Communication Impairments — Milwaukee, Wisconsin
- Category Learning Retention in Adults With and Without Developmental Language Disorder — Newark, Delaware
- Retrieval-based Word Learning in Developmental Language Disorder: Adaptive Retrieval Schedule — West Lafayette, Indiana
Explore by condition: All Developmental Language Disorder clinical trials
💡 How to Participate
- Check the checklist above to see if you may qualify.
- Contact the study coordinator using the phone/email above.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.