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Dopamine and feeling in control

Researchers are investigating how Parkinson's affects judgements about control over events, using tasks and brain measurements.

Learning by observing or collecting information · Study reference: NL-OMON56646

Plain-language introduction written with AI from the registry; not independently checked by a clinician. Read the original details below ↓

This registry record was last updated over six months ago, or its update date is missing. Recruitment may have changed. Confirm with the team before making plans.

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Looking for volunteers

Start (reported date)
2025-02-14

Planned dates can move. A study finishing does not tell us when a paper will be published.

No results summary has been confirmed in the registry records we imported. See connected papers below; we keep checking after recruitment ends.

Changes we have recorded
  • 2026-10-11 — recruiting

These are dates we observed a change, not necessarily the dates it happened.

Papers connected to this study

No connected paper has been found yet. The tracker checks the growing library for study identifiers and registry-linked publications.

Who can join?

Ages 18 to 99 · Ask the team who can join

These are starting points, not the full rules. The research team can tell you whether the study is right for your situation.

Read all the rules for taking part

Sex eligibility reported by registry: Not reported

Inclusion criteria: • Age >= 18 years • Disease duration <= 10 years • Use L-DOPA to treat their symptoms Exclusion criteria: o Taking any other dopaminergic medication to treat their symptoms (except decarboxylase inhibitor) o Have other neurological diagnosis (such as stroke, epilepsy and dementia) o Taking anti-depressants such as SSRI's. o Negative indications for MRI o Incompatible medical devices (e.g. pacemaker) o Incompatible metal implants o Claustrophobia o If you are pregnant or suspect that you are pregnant
Full study name & original research details

Official study title

Controllability estimation in Parkinson's disease: role of dopamine - Controllability estimation in Parkinson

Short title used by the registry

Controllability estimation in Parkinson's disease: role of dopamine

Original description

Primary outcome: Behavioral estimation of controllability between study sessions and BOLD response differences related to behavioral manipulations of the task between study sessions. Secondary outcome: NA

Conditions reported: Neurological disorder Parkinson's disease;overig

Registry records for this study

Records are joined using registration identifiers. Titles alone do not establish that two studies are the same.

Study type
Observational
Interventions
Not reported
Phases
Not reported
Sponsor
Radboud Universitair Medisch Centrum
Start date reported by registry
2025-02-14 (reported)

Registry updated: Not reported · Status last verified by the registry submitter: Not reported

Registry records retrieved 2026-10-13 (UTC). Individual records may have older updates. Recruitment and eligibility must be confirmed with the study team.

Contact the research team

Public study contacts supplied to the registry. Ask whether recruitment is still open and what participation involves.

Study locations

Site status can differ from overall study status. “Status not reported” means local availability needs confirmation. Remote participation and travel arrangements must be checked with the team.

Facility not reported

Netherlands

Status not reported

The original descriptions and participation rules come from the registry. Participation is voluntary and does not guarantee benefit.