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Clinical Trials/NL-OMON42474
NL-OMON42474
Completed
Not Applicable

The role of the dopamine and opioid systems in pain-avoidance learning - dopamine, opioids and pain-avoidance learning

niversiteit Leiden0 sites91 target enrollmentTBD

Overview

Phase
Not Applicable
Intervention
Not specified
Conditions
scientific investigation of healthy subjects
Sponsor
niversiteit Leiden
Enrollment
91
Status
Completed
Last Updated
2 years ago

Overview

Brief Summary

Trial is onging in other countries

Registry
who.int
Start Date
TBD
End Date
September 30, 2016
Last Updated
2 years ago
Study Type
Observational non invasive

Investigators

Sponsor
niversiteit Leiden

Eligibility Criteria

Inclusion Criteria

  • Healthy adult subjects with no history of neurological disorder/disease or chronic pain, and no counter\-indications to 3 Tesla MRI or to levodopa or naltrexone, and no personal relationship with the researchers will be included in this study. All participants will be right\-handed native\-Dutch speakers with normal vision or contact lenses.

Exclusion Criteria

  • Potential participants will be prescreened for contra\-indications for 3 Tesla fMRI and levodopa/naltrexone, which include metal implants, heart arrhythmia, claustrophobia, glaucoma, hypertension and use of anti\-depressants or psychotropic medication and possible pregnancy (in adult females). They will additionally be prescreened for head trauma, premature birth, learning disabilities, chronic pain, and history of neurological or psychiatric illness. Finally, left\-handed
  • individuals will be excluded from the study because some left\-handers have substantially different brain organization relative to right\-handers.

Outcomes

Primary Outcomes

Not specified

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