Etude Comparative Monocentrique, randomisée, en Cross-over, en Double Aveugle, Contre Placebo, de l'Action du méthylphénidate Sur Les paramètres Cognitifs de la Motivation
Overview
- Phase
- Early Phase 1
- Intervention
- Placebo Oral Tablet
- Conditions
- Motivation
- Sponsor
- Institut National de la Santé Et de la Recherche Médicale, France
- Enrollment
- 35
- Locations
- 2
- Primary Endpoint
- coefficient of sensitivity to reward
- Status
- Completed
- Last Updated
- 8 days ago
Overview
Brief Summary
The purpose of this study is to evaluate the impact of methylphenidate, a mixed dopaminergic and noradrenergic agent, onto the different components of motivation: decision-making, effort allocation and instrumental learning.
Investigators
Eligibility Criteria
Inclusion Criteria
- •weight\>= 50kg and \<=90kg
- •free and informed consent
- •social security affiliation
- •no chronic illness
- •no previous participation to a protocol wth similar tasks
- •no special legal status (guardianship,trusteeship)
- •no personnal or familial neurologic or psychiatric background
- •no contraceptive device for a reproductive woman
Exclusion Criteria
- •inability to squeeze a handgrip
- •psychoactive substance consumption less than 3 weeks ago
- •pregnant or breastfeeding woman
- •hypersensitivity to methylphenidate
- •hyperthyroidism
- •cardiovascular or cerebrovascular disease
- •respiratory, hepatic or renal failure
- •pheochromocytoma
- •gluten intolerance or hypersensitivity
- •galactosemia, glucose malabsorption syndrome, lactase deficit
Arms & Interventions
placebo then Ritalin (methylphenidate)
Intervention: Placebo Oral Tablet
Ritalin (methylphenidate) then placebo
Intervention: Ritalin (methylphenidate)10Mg Tablet
Ritalin (methylphenidate) then placebo
Intervention: Placebo Oral Tablet
placebo then Ritalin (methylphenidate)
Intervention: Ritalin (methylphenidate)10Mg Tablet
Outcomes
Primary Outcomes
coefficient of sensitivity to reward
Time Frame: two hours after administration
Parameter characterizing the influence of reward expectation/experience onto behavior for each individual. This parameter is estimated through the fit of computational models to behaviors recorded in a battery of motivational tasks (choice task, effort task, Learning task).
Secondary Outcomes
- coefficient of sensitivity to effort(two hours after administration)
- coefficient of sensitivity to punishment(two hours after administration)
- coefficient of sensitivity to delay(two hours after administration)