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The role of dopamine and noradrenaline in probability and reward value processing.

The role of dopamine and noradrenaline in probability and reward value processing.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
NL-OMON
Registry ID
NL-OMON27311
Enrollment
36
Registered
2015-03-04
Start date
2015-05-01
Completion date
Unknown
Last updated
2024-06-11

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

Conditions

dopamine antagonism, noradrenaline antagonism, subjective probability processing, subjective value processing, dopamine antagonisme, noradrenaline antagonisme, subjectieve waardevolheid, subjectieve waarschijnlijkheid.

Interventions

- one capsule containing 150 microgram clonidine - one capsule containing 2 milligram haloperidol - one capsule containing placebo

Sponsors

Utrecht University
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Male, non-smoking, age between 18-45 years and passing the screening (assessing medical history and blood pressure/heart rate)

Exclusion criteria

Exclusion criteria: Psychopathology, current medication use, (history of) serious medical condition(s), low blood pressure, heart rate above 100 bpm or below 60 bpm in rest.

Design outcomes

Primary

MeasureTime frame
Cue specific P200 event-related potential relative to no cue, cue specific P300 event-related potential relative to no cue. Independent variables: Subjective value, Subjective probability, dopaminergic antagonism by haloperidol and noradrenergic antagonism by clonidine.

Secondary

MeasureTime frame
- Velocity scaling measurement - Spontaneous motor activity measurement - Event related potentials in response to the target - Reaction times in response to the target - Target omissions and percentage correct responses - Questionnaire scores (attentional control, State-trait anxiety inventory)

Contacts

Public ContactIris Schutte

Utrecht University, experimental psychology dept.

i.schutte@uu.nl+31 30 2534368

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)