Five Digits Test: a quick inhibition test for adults with ADHD or autism
Five Digits Test - Validation of a Neuropsychological Test of Inhibition for Patients With Neuropsychiatric Conditions
This project will test whether the Five Digits Test is a quick, language-light way to measure inhibition in adults with ADHD or autism.
Quick facts
| Study type | Observational |
|---|---|
| Enrollment | 150 (estimated) |
| Ages | 18 Years and up |
| Sex | All |
| Sponsor | Umeå University Academic / other |
| Locations | 1 site (Umeå) |
| Trial ID | NCT07531914 on ClinicalTrials.gov |
What this trial studies
This is a cross-sectional validation comparing the Five Digits Test (FDT) to the standard Color-Word Interference Test (CWIT) and the BRIEF-A questionnaire in adults with diagnosed or suspected ADHD or autism and healthy controls. Participants complete demographic and health questions, then are randomly assigned to take the FDT or CWIT first to control for order and learning effects. Researchers will use correlation coefficients to examine convergent validity and perform regressions and group comparisons (t-tests/ANCOVAs) to adjust for background variables and test differences. The protocol excludes people with active substance addiction, insufficient Swedish language to consent, current sedative use, or inability to complete neuropsychological testing.
Who should consider this trial
Good fit: Adults (18+) diagnosed with or under evaluation for ADHD or autism who can read Swedish well enough to consent and complete testing and are able to undergo neuropsychological assessment are ideal candidates.
Not a fit: People with active alcohol or drug addiction, those taking sedatives that affect testing, non-Swedish speakers who cannot consent, or individuals unable to complete neuropsychological testing are unlikely to benefit from this protocol.
Why it matters
Potential benefit: If successful, the FDT could give clinicians a simpler, lower-language-demand tool to measure inhibition, helpful for patients with limited reading or language skills.
How similar studies have performed: The CWIT and BRIEF-A are well-established measures of inhibition and executive function, while the FDT is a newer, less-tested tool with limited prior validation data.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * age 18 and above * Diagnosed with a ADHD or Autism, alternatively under examination these diagnoses Exclusion Criteria: * Addiction of alcohol or other substances * Not speaker of Swedish to such extent that cannot read or comprehend the informed consent forms * On sedatives, such as sleep or pain medication * Not being able to participate in a neuropsychological examination, or to give informed consent
Where this trial is running
Umeå
- Umeå University, Umeå University Hospital — Umeå, Sweden (Recruiting)
Study contacts
- Study coordinator: Nils Berginström, PhD
- Email: nils.berginstrom@umu.se
- Phone: +46907868864
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.