Generation of random numbers in young patients suffering from ADHD

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00007811

Enrollment

Registered

2015-02-13

Start date

2015-02-12

Completion date

Unknown

Last updated

2025-10-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

F90.0 F90.1

Interventions

Group 1: Patients suffering from ADHD will be asked for five minutes to generate every second a number between 1 and 9. Group 2: Healthy controls will be asked for five minutes to generate every secon

Eligibility

Sex/Gender

Male

Age

8 Years to 18 Years

Inclusion criteria

Inclusion criteria: In patients: F90.0 F90.1 diagnose

Exclusion criteria

Exclusion criteria: For all participants: sub average intelligence quotient, further diseases, and medicine intake; for patients in case of medicination with methylphenidate: 48 h wash out time

Design outcomes

Primary

Measure	Time frame
We expect that patients with ADHD display comparable deficits in global working memory capacity as observed in Parkinson patients. The global memory score is measured by the „prediction rate decay“. At the same time we expect that patients suffering from ADHD when compared with healthy controls will show worse cognitive monitoring functions. Monitoring functions, measured by the prediction rate, are primary associated with frontal brain functions and were undisturbed in Parkinson´s disease.	—

Measure

Time frame

We expect that patients with ADHD display comparable deficits in global working memory capacity as observed in Parkinson patients. The global memory score is measured by the „prediction rate decay“. At the same time we expect that patients suffering from ADHD when compared with healthy controls will show worse cognitive monitoring functions. Monitoring functions, measured by the prediction rate, are primary associated with frontal brain functions and were undisturbed in Parkinson´s disease.

—

Secondary

Measure	Time frame
not defined	—

Countries

Germany

Contacts

Public ContactAlexander Prehn-Kristensen

Klinik für Kinder- und Jugendpsychiatrie und -psychotherapieZentrum für Integrative PsychiatrieUniversitätsklinikum Schleswig-Holstein, Kiel

a.prehn@zip-kiel.de0431 9900 2531

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026