Fitzgerald and Siournis reported in the Australian Journal of Chemistry (1965, volume 18, pp. 433–4) that a sample of the bark contained 0.36% of the hallucinogen DMT as well as 0.24% of N-methyltryptamine.
These trees respectively are known to the western world primarily as sources of the hallucinogenic snuffs Vilca/Cebil and Yopo/Cohoba.
Abramson was notably the attending physician in connection with the notorious (and allegedly LSD-induced) supposed suicide of Frank Olson, a doctor who was being given LSD as part of the CIA's psychedelics research.
Hoffer and Humphry Osmond, who developed the hypothesis that schizophrenia is caused by the endogenous production of an epinephrine (adrenaline) based hallucinogen, were called before the Committee of Ethics of the American Psychiatric Association to explain why they were publicizing a treatment, called xenobiotic psychiatry by Bernard Rimland, which was considered outside of standard psychiatric practice.
Lysergol is an alkaloid of the ergoline family that occurs as a minor constituent in some species of fungi (most within Claviceps), and in the morning glory family of plants (Convolvulaceae), including the hallucinogenic seeds of Rivea corymbosa (ololiuhqui), Argyreia nervosa (Hawaiian baby woodrose) and Ipomoea violacea.
She conducted a survey; by the time she got back to San Francisco, she had talked to 180 professionals in the computer graphic field who had admitted taking psychedelics, and that psychedelics are important to their work; according to mathematician Ralph Abraham.