Also, i don't understand it because I'm not a neuroscientist but are the brain networks they're talking about in the abstract of the research related to conscious thinking? I find these kind of articles so frustrating, the articles themselves imply these big dubious claims, then you try to read the research and you don't know what the fk they're talking about.
Well, if it's real random and it's experimental vs observational, then it depends on how big an error you can tolerate. Counter-intuitive fact: the minimum sample size for a T-test is two...