default mode network
narrative · quieting · presence
The default mode network is a set of connected brain regions that switches on whenever your attention turns inward — remembering the past, planning the future, or just narrating the story of "you." Experienced meditators show noticeably less activity in this network, especially in one key hub, and that quieting lines up with the felt sense of calm, effortless awareness. A single high dose of psilocybin reaches a strikingly similar place by a completely different route: a 2024 study tracking seven volunteers in fine-grained detail found it disrupted that same network's connections more than three times as much as a stimulant control, tracking each person's own sense of dissolving self — with part of that disruption still detectable three weeks later. The sense of a separate "self" may not be a fixed thing at all — more like a process, a network humming along. Whether quieting that network reveals something real underneath, or simply produces a predictable, brain-made sense of calm with nothing further to it, is a question neither route's brain scans can answer on their own.