The Problem Child Chronicles · Episode 1
April 19, 1943
PASTE THIS AS YOUR NOTEBOOKLM SOURCE DOCUMENT.
Episode 1 of "The Problem Child Chronicles", the series on LSD: My Problem Child by Albert Hofmann. The episode reconstructs Bicycle Day (April 19, 1943) from Hofmann's laboratory notebook, places it in the pharmacological context of what 5-HT2A receptor activation actually does, and asks why this specific moment became the founding event of an entire cultural movement.
Full source material
SOURCE 1, Hofmann's account of April 16-19, 1943 (LSD: My Problem Child, 1979):
"In the afternoon of 16 April 1943, when I was working on this problem, I was seized by a peculiar sensation of vertigo and restlessness. Objects, as well as the shape of my associates in the laboratory, appeared to undergo optical changes. I was unable to concentrate on my work. In a dreamlike state I left for home, where an irresistible urge to lie down overcame me. I sank into a not unpleasant, intoxicated condition characterized by an extremely stimulated imagination. In a dreamlike state, with eyes closed, I perceived an uninterrupted stream of fantastic pictures, extraordinary shapes with intense, kaleidoscopic play of..." [entry ends here]
April 19: "On 19 April 1943, I carried out a self-experiment with [a small amount] of LSD. I had estimated that this amount was so small that it would be harmless."
"My field of vision swayed before me, and objects appeared distorted like images in curved mirrors. I had the impression of being unable to move from the spot, although my assistant told me later that we had cycled at a good pace."
The neighbor: "A female neighbor, whom I scarcely recognized, brought me milk, she had become a malevolent, insidious witch with a colored mask."
The morning after (Hofmann, LSD: My Problem Child, chapter 1): "…everything glistened and sparkled in a fresh light. The world was as if newly created."
SOURCE 2, The pharmacology (Nichols, Pharmacological Reviews, 2016):
"The primary mechanism of action of the psychedelic drugs is as agonists or partial agonists at the serotonin 5-HT2A receptor. LSD binds with exceptional affinity to 5-HT2A receptors. The drug's action at the thalamus, which serves as the primary sensory gating mechanism, may explain the characteristic alteration in sensory experience. The dose Hofmann gave himself was larger than what modern clinical trials use."
SOURCE 3, The historical context (Cambridge HPS dissertation, 2007):
"By the mid 1960s, over 40,000 patients had taken LSD and psychedelic research had produced over 1,000 scientific papers and many books as well as several international conferences. LSD was made illegal in the US in 1968. The research stopped."
Focus questions
- 1Hofmann's account of April 19 runs through three journal entries and a supplement dated April 21. What does the sequence of entries tell us about how he understood what had happened?
- 2He took what he thought was a cautious amount. What does that tell us about how little was known about the compound at the time?
- 3The Mrs. R. transformation, the neighbor becoming a witch with a colored mask, is the most vivid scene in the book. What is happening pharmacologically when a familiar person becomes unrecognizable?
- 4Why did April 19, 1943 become the founding event of an entire cultural movement rather than, say, Stoll's first clinical paper in 1947?
- 5Hofmann lived to 102 and called LSD "a sacred drug." What does his longevity and continued belief tell us about the relationship between the discoverer and the discovery?
Suggested guests: David Nichols (the pharmacologist whose 2016 review is the definitive source on LSD mechanism)