5 results
The primary objective is to examine whether a memory impairment as a result of biperiden treatment (cholinergic M1 antagonist) can be reversed by rivastigmine (a cholinesterase inhibitor). Secondary, we will assess the effects of biperiden and…
The primary objective is to examine whether a memory impairment as a result of biperiden treatment (cholinergic M1 antagonist) will be increased by acute tryptophan depletion (ATD, a drink that decreases serotonin synthesis). In other words, we will…
To compare one dose of the short acting tropicamide combined with one dose of the longer acting cyclopentolate (c+t) with a double dose of the longer acting cyclopentolate (c+c). To develop a cycloplegics protocol that garantees optimal refractieve…
Primary objective:* Assess the test-retest repeatability and reproducibility of radioligand [11C]-UCB-J binding.Secondary objective:* Compare the precision and accuracy of PET data analysis using 60 versus 90 minutes of scan data.* Assess group…
- Characterization of the CNS PD profile of IV administered biperiden- Characterization of the pharmacokinetic profile of IV administered biperiden- To confirm the plasma concentration-effect relationship of biperiden using population PK-PD modeling…