Attention Deficit Hyperactivity Disorder (ADHD)
Conditions
Brief summary
Effect of methylphenidate on the task vs. rest in a region defined by its involvement in the cognitive task and its reactivity to methylphenidate. ROI (Region of Interest) analysis to maximize power.
Detailed description
Decrease in rCBF (regional Cerebral Blood Flow) in the methylphenidate condition vs. placebo, in the different groups., Improved cognitive performance on tests of sustained attention, working memory and flexibility following the administration of methylphenidate, in the different groups., Stabilization of the power of the EEG spectrum in the low frequencies (delta (1-4Hz) and theta (4-8Hz)) in the methylphenidate condition vs. placebo., MRI: Interaction group x treatment x task on cerebral activation linked to sustained attention and linked to the inhibition corresponding to each of these tasks., EEG: Group x treatment x task interaction on the amplitude of the XML File Identifier: 0Vmd7NrSRK8JeP+9ISLPaO9Oq+U= Page 14/26 P300 wave linked to sustained attention (P300b) and linked to inhibition (P300a) corresponding to each of these tasks.
Interventions
Sponsors
Eligibility
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Effect of methylphenidate on the task vs. rest in a region defined by its involvement in the cognitive task and its reactivity to methylphenidate. ROI (Region of Interest) analysis to maximize power. | — |
Secondary
| Measure | Time frame |
|---|---|
| Decrease in rCBF (regional Cerebral Blood Flow) in the methylphenidate condition vs. placebo, in the different groups., Improved cognitive performance on tests of sustained attention, working memory and flexibility following the administration of methylphenidate, in the different groups., Stabilization of the power of the EEG spectrum in the low frequencies (delta (1-4Hz) and theta (4-8Hz)) in the methylphenidate condition vs. placebo., MRI: Interaction group x treatment x task on cerebral activation linked to sustained attention and linked to the inhibition corresponding to each of these tasks., EEG: Group x treatment x task interaction on the amplitude of the XML File Identifier: 0Vmd7NrSRK8JeP+9ISLPaO9Oq+U= Page 14/26 P300 wave linked to sustained attention (P300b) and linked to inhibition (P300a) corresponding to each of these tasks. | — |
Countries
France