Begrep hentet fra [vox-artikkelen](https://www.vox.com/future-perfect/24032884/psychedelics-gul-dolen-critical-period-blindness-stroke) om at [[Psychedelics can reopen critical periods]]. Et nevrologisk fenomen definert av [Gül Dölen](https://en.wikipedia.org/wiki/Gül_Dölen) som: > A critical period is this window of time where you’re really, really sensitive to the environment around you, and what you learn during that time period kind of becomes locked in for the lifetime. It’s a really strong period of learning and sensitivity to your environment. Relatert til [[Tanker om nevroplastisitet]]?