UNRAVELing the synergistic effects of psilocybin and environment on brain-wide immediate early gene expression in mice.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology November 1, 2023 Daniel Ryskamp Rijsketic, Austen B Casey, Daniel A N Barbosa et al. 49 citations
Psilocybin increased neural activity (c-Fos expression) in the neocortex, caudoputamen, central amygdala, and parasubthalamic nucleus while decreasing it in the hypothalamus, cortical amygdala, striatum, and pallidum of mice, largely regardless of whether the mice were in their home cage or an enriched environment. Network analyses showed that psilocybin disrupted co-activity between highly correlated brain regions, reduced modularity, and attenuated communication between modules. Context and psilocybin each had widespread effects on brain activity and network architecture, but interactions between the two were surprisingly sparse.