Psilocybin is converted to psilocin, which activates 5-HT2A receptors on cortical pyramidal neurons. This triggers intracellular signaling pathways (PLC, Ca2+, ERK, mTOR), boosts plasticity-related gene expression and proteins like BDNF, and can rapidly increase dendritic spines and synaptic proteins over hours to days. The result is a short window of heightened neuroplasticity.
At the systems level, imaging studies suggest reduced coupling within the Default Mode Network alongside broader global connectivity and higher neural entropy during the acute experience. Rigid network patterns temporarily loosen, then largely return toward baseline, with some connections potentially settling into a new configuration.
In simple terms, the proposed reset is a brief destabilization of entrenched pathways plus a plasticity window in which new patterns can form, shaped by mindset and environment. Details such as optimal dose, timing, and durability are still under study. For a plain-language overview, see how psilocybin may reset the brain.
Hope this clarifies the idea of a reset.