I've heard James Fadiman reporting twice that it is 10% of a recreational (1-3g) or therapeutic dose (3.0-3.5g), but certainly not 10% of a heroic dose. This study went with 0.5g which is 10% of what's considered a heroic dose.
The effective dose is considered to be 6mg if psilocybin or 0.6g of dried magic mushroom, thus the amount given in the study is very close to being detectable (and incidently was in most of the cases) which I don't think you can charaterize as a microdose. James Fadiman expressly stated a microdose would be a dose that you couldn't detect and would forget you had taken while going on about your day.
If one is taking 0.2-0.3g of dried magic mushroom this would be, without question, not getting high.
During my youth, I had strong trips with .5g and meh one's with a few grams, sure it's not the norm but it's not an exceptional occurrence either.
My experience told me that the stem of the smallest mushrooms are a lot stronger than those of the bigger one but that an heuristic not an hard rule.
If I wanted to microdose psilocin (for which psylocibin is a prodrug), I would order 4-AcO-DMT¹ fumarate (another prodrug for psilocin) from a reputable Canadian chemical supplier. It's almost identical to mushrooms, the difference being that it is predictable and somewhat easier on the digestive system.
1) https://en.wikipedia.org/wiki/O-Acetylpsilocin https://psychonautwiki.org/wiki/4-AcO-DMT
I know some English names can go both ways like Evelyn or Shannon etc, but is Emily one of them?
[Edit: OK, I've heard people say that aspirin doesn't work for them, but what they meant was that they had pains that were too strong to respond to mere aspirin.]
Whereas psychoactive drugs generally affect the actual underlying processes in the brain through various interactions with receptor, enzymes, or neurotransmitters.
I hope that distinction makes sense.
Also, just to be clear, I don't think you're saying that you have to be in a special frame of mind for psychoactive drugs to make a difference. For example, I've been told that homeopathy doesn't work for me because I "don't believe in it", but I'm pretty sure that a sufficient dose of psilocybin would get me just as high as anyone else (modulo tolerance), belief or no belief.
Any neuroticism can bubble to the surface and you might find yourself obsessing over a bad habit you have instead of enjoying the mystery and pattern of the universe.
For example I’ve twice taken mushrooms while I was lonely. About 1 gram. In both cases I ended up just feeling an amplified sense of loneliness that was very difficult to handle. Another time, and this wasn’t particularly bad, but I ended up thinking about my parents dying (they’re still alive) and it was a powerful feeling. That was good though, because after that I began to put more effort in to seeing them and spending time with them.
But my point is that the experience is a powerful mental experience that is affected by what is on your mind. So they strongly recommend only doing a trip if you have a good mindset and a good setting to do so. Otherwise wait.
By the way the parent comment is correct. Psychedelics bring up a powerful feeling of connectedness with the universe. You feel like you’re seeing patterns of the matter around you and you feel one with it all. I’m not a mystical person but that’s how I’ve felt on a strong trip.
Whereas the OP (root of the thread) is talking about microdosing, which is, if I understand it correctly, taking drugs in an attempt to not get high, but get other benefits?
As to the "powerful feeling of connectedness with the universe", well, I've been drunk and I found that I loved everybody around me and I felt a strong emotional connection with total strangers. But, I was drunk. It's relaxing, it's disinhibiting, it's fun, it's making yourself deliberately and temporarily mentally impaired, why not? But there's nothing more to it.
In fact, I'd go as far as to say that the defining characteristic of intoxication, in my experience, is of being dumber than usual, which can be suprisingly enjoyable. Certainly not something to be desired as a constant state, though.
To clarify, as far as I understand, "set and setting" matters when taking psilocybin to get high, but microdosing is taking psilocybin (or other similar drugs) to very deliberatly not get high.
So what does "set and setting" have to do with microdosing, and why doesn't it matter with aspirin, which also doesn't get you high?
Now I've never microdosed mushrooms, but it's not hard for me to imagine that this same concept applies, of actively pursuing a good experience, which can steer that experience in a good direction. It will just be at a much smaller scale.
For myself I think of this phenomenon as a kind of self-fulfilling prophecy (not meant as a judgement about others) which helps me to keep in mind that I'm the one in control (assuming doses are not excessively high, I think others in this thread call those "heroic doses").
So I really don’t see it as “getting high”, and that’s why people call it a trip rather than getting high.
My point about the connectedness is that it’s not mysticism, that’s just how people really feel. Don’t misunderstand those descriptions as the person being more mystical than you. That’s how you’d feel on the right dose of mushrooms too.
A lot of the time, yes. For example, I have a bad physical reaction to aspirin -- it makes me vomit. I've tried several times over my life, and each time I had the same result. It does not work for me in the common use, plain medical sense of the phrase.
But, for example, I was told that homeopathy doesn't work for me because I don't believe in it. And I think what the OP says that it's OK if "it" (in this case, microdosing rather than homeopathy) doesn't work for you then that "is OK too" is something I hear the most not from people who find that, say, aspirin doesn't work for them but ibuprofen, or paracetamol, does; but rather what I hear from people who take a remedy that not only has no effect on others, but has no documented effect on most people and has no clear mechanism of action, other perhaps than the placebo effect (which I understand to be regression to the mean).
So that's why I'm skeptical. With normal medicine, drugs will have an effect on some people or others regardless of whether someone believes they will or not, but with alternative remedies, they will only have an effect on those who believe in them and we can only observe the effect by asking them how they feel (for example, no homeopathic remedy will ever reduce blood pressure).