[belltaco]

So the article did not do a good job of explaining the study.

Also, why did they not go for a dose every 3-5 days like the anecdotes, but instead of went for every 7 days. And then say it might be different when done every few days. Were they trying to avoid testing on the weekends or something?

[gwern]

Washout. If you went more frequently, then the excuse would be that the LSD microdosing might still be having effects on the low-dose or placebo days.