8 results
We propose to conduct a study in healthy young and elderly subjects and patients diagnosed with mild to moderate AD, FTLD, or DLB where cholinergic and serotonergic challenges are given in a placebo-controlled, crossover fashion. Before each…
We propose to conduct a study in healthy subjects where a serotonergic challenge is given in a placebo-controlled, crossover fashion. Before each challenge, participants will be measured 1 time to define their baseline resting state networks (RSNs)…
This study aims to clarify whether the brain dopamine and noradrenaline system underlie the electrocortical responses (event-related potentials) that are sensitive to cues signalling reward and probability, the P200 and P300.
The objective of this study is to assess the effects of an increased NE level on the trade-off between exploitation and exploration. More specifically, this study will compare the exploitative/explorative behavior of participants who received either…
To determine the beneficial effect of a single dose of 150 µg clonidine as an adjuvant to chirocaine in retrobulbar block.
The objective of the study is to investigate the effect of alfa2-adrenoceptors on bone turnover.
Primary objective:Plasma levels of clonidine, in order to describe pharmacokinetic and pharmacodynamic properties of intravenous clonidine in critically ill ventilated ICU patients.Secondary objectives are: * to evaluate the effect of a 3-hr loading…
The goal of the current investigation is to test the noradrenergic part of a new model that accounts better for results of pharmacological research. This model states that the cholinergic system underlies disengagement, and that the…