Peer-reviewed research
Cluttering and Working Memory in Attention Deficit and Hyperactivity Disorder
Saniye Tülin Fidan and Mehmet Niyazi Sarıyer, Psychiatry and Clinical Psychopharmacology, 2025 · DOI 10.5152/pcp.2025.241035
Read the originalRead on October 16, 2026
- What it is
- A 2025 study of 200 children and adolescents with ADHD and 49 typically developing peers, measuring cluttering with the Predictive Cluttering Inventory-revised and working memory with a working memory scale.
- How much weight it carries
- Peer-reviewed open-access article from a university hospital. It is a single cross-sectional study with a control group that is much smaller than the ADHD group, so it shows an association, not a rate for the general population.
Facts taken from this source
- The 2025 cluttering study included 200 children and adolescents with ADHD and a control group of 49 typically developing peers.
“The sample included 200 ADHD participants and a control group of 49 TD participants.” (Abstract, Methods)
- Research summarized in a 2025 paper suggests that people with ADHD, especially the hyperactive-impulsive subtype, may speak faster than people without ADHD.
“individuals with ADHD, especially those with the hyperactive-impulsive subtype, may demonstrate an increased speech rate compared to those without the disorder” (Introduction)
- A 2025 study concluded that cluttering is present in both the inattentive and combined types of ADHD in children and adolescents.
“The study concluded that cluttering is present in both the ADHD Inattentive and Combined types.” (Abstract, Conclusion)
- The authors of a 2025 study recommend that children diagnosed with ADHD undergo more comprehensive assessments of their language and speech capabilities.
“It is recommended that children diagnosed with ADHD undergo more comprehensive assessments of their language and speech capabilities.” (Conclusion)