A study landed recently that we have not stopped thinking about. Joanna Kuc and colleagues at UCL gave 29 people a simple daily task: record a short voice note, about a minute long, for two weeks before and two weeks after a single psychedelic session. Then they looked at the language, and the voice itself, not to grade anyone, but to see what naturally shifted.
Two things stood out.
The first is the method. Most of what we know about how people change after a psychedelic experience comes from questionnaires, filled in at a clinic, asking someone to rate how they feel. This study did something quieter. It listened to how people actually spoke, day to day, in their own words. After the session, speech moved away from talking about other people and towards making sense of one’s own experience. It became more reflective, less socially arranged. Fear and nervousness gave way to relief, admiration, and a word the researchers picked out as “realisation”.
The second is easy to miss. The way people spoke before the session predicted how ready they were for it. Warmer, more emotionally present language beforehand tracked with better preparation. Emotional breakthrough was foreshadowed not by particular words but by tone, by a willingness to sit with harder feelings like remorse and relief. Preparation and integration are the same thread pulled from two ends.
Why this is close to home
Reweave is a measurement-led programme for the weeks around a psychedelic experience. From the start we made a bet that the useful signal is not a one-off score but a trajectory, something you can only really see by checking in gently, over time, in ordinary life rather than a clinic. This study is careful, early evidence for that bet.
Today Reweave is built around integration, the part that comes after. The finding that pre-session state shapes what follows is a large part of why preparation is on our roadmap, handled with the same care.
We should be honest about the limits. This is one small study, twenty-nine experienced people, no control group. The voice-quality findings in particular are early, and the authors say so plainly. We read it as a direction of travel, not a settled fact.
Why a 5-MeO shelf, and why carefully
The study was run with 5-MeO-DMT, a short and unusually intense psychedelic. The experience can last minutes; the return can be steep. That is why the time around it deserves attention, and why we are building a 5-MeO shelf alongside our psilocybin one.
It is also why we are not rushing it. Reweave is education and structured reflection, not therapy, crisis care, or medical advice. Our 5-MeO material goes through independent clinical sign-off before it reaches anyone, and crisis support is always free and never something we would put behind a price.
If this resonates
We are still in beta, building in the open, and the people who join early shape what Reweave becomes. If the idea of listening rather than asking speaks to you, leave your email below and we will tell you the moment things open.
Thank you to Joanna Kuc and her co-authors for the work.