Peruvian802
Well-Known Member
May not be a peer reviewed journal, but I'd call this pretty credible. And with some digging (that I'm working on), there's sure to be a peer-reviewed study this is coming from.
And it seems to directly disagree with you.
It says they're rare, and they don't know what causes them, but they're real.
http://www.popsci.com/science/article/2013-08/fyi-can-acid-trip-really-give-you-flashbacks
From the article:
In a 2002 review of the scientific literature on HPPD over the last 50 years, psychiatrist John Halpern and his co-authors found most studies provided too little information to estimate the prevalence "even crudely" of HPPD in the population. "It is often unclear whether symptoms occurred exclusively following hallucinogen intoxication," they write. "It is also difficult to rule out other medical or psychiatric conditions that might cause 'flashbacks', including current intoxication with another drug, neurological conditions, current psychotic or affective disorders, malingering, hypochondriasis, or even other anxiety disorders such as posttraumatic stress disorder (PTSD)."
Either way, pass the kombucha!
