Classical psychedelics' action on brain monoaminergic systems.
The international journal of biochemistry & cell biology November 1, 2024 Jasmine Jade Butler, Daria Ricci, Chloé Aman et al. 8 citations
Classical psychedelics, which bind to serotonin receptors (5-HTRs), have complex and region-specific effects on the activity of monoaminergic neurons. They can inhibit the firing of serotonergic neurons without necessarily reducing serotonin release in all brain regions, and similarly inhibit noradrenergic neuron spontaneous activity without consistently decreasing noradrenaline release. Their influence on dopaminergic systems is also complex, with opposing effects depending on the specific serotonin receptor subtype and the brain state. Overall, there is no single, clear neuronal signature for how psychedelics affect monoamine systems; instead, the effects are state-dependent and region-dependent.