Serotonergic systems

Psilocin, A Psychedelic Drug, Exerts Anticonvulsant Effects Against PTZ- and MES-Induced Seizures in Mice via 5-HT1A and CB1 Receptors: Involvement of Nitrergic, Opioidergic, and Kynurenine Pathways

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Researchers tested psilocin, the active ingredient in magic mushrooms, and found it could reduce seizures in mice at low doses (3-5 mg/kg) without causing psychedelic effects. The anticonvulsant benefits were mediated through several brain pathways including serotonin, cannabinoid, opioid, and nitric oxide signaling systems. The effects persisted for at least 9 days after a single dose, suggesting psilocin may have potential as a new treatment for epilepsy, though human clinical trials are needed to confirm these findings.

Enhanced visual contrast suppression during peak psilocybin effects: Psychophysical results from a pilot randomized controlled trial

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Researchers studied how psilocybin affects the way our visual system processes contrast and surrounding visual information. Participants completed vision tests after taking psilocybin or placebo, and the results showed that psilocybin made people more influenced by surrounding visual elements when judging the brightness of objects. Interestingly, the stronger the visual effects people experienced from psilocybin, the more their perception was influenced by these surroundings. This finding might help explain how psilocybin affects mood and could help scientists better understand depression and other conditions affecting vision.

Network control energy reductions under DMT relate to serotonin receptors, signal diversity, and subjective experience

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Researchers studied how DMT affects the brain’s ability to switch between different activity patterns. Using simultaneous brain imaging (fMRI) and electrical recordings (EEG), they found that DMT makes these transitions easier and less energy-intensive. The effects occurred primarily in brain regions with high levels of serotonin 2a receptors and were accompanied by increased complexity of brain signals and stronger subjective drug effects.

Research Topic: Serotonergic systems

Psilocin, A Psychedelic Drug, Exerts Anticonvulsant Effects Against PTZ- and MES-Induced Seizures in Mice via 5-HT1A and CB1 Receptors: Involvement of Nitrergic, Opioidergic, and Kynurenine Pathways

Enhanced visual contrast suppression during peak psilocybin effects: Psychophysical results from a pilot randomized controlled trial

Network control energy reductions under DMT relate to serotonin receptors, signal diversity, and subjective experience