• 37. What IS a Psychedelic?: The Basics of Psychedelic Science

  • 2025/04/21
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37. What IS a Psychedelic?: The Basics of Psychedelic Science

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  • On episode 37 of A Chat with Uma, I hit pause on the lived experience & nitty-gritty research and rewind all the way to Psychedelics 101: What exactly counts as a psychedelic? Why do ketamine and MDMA show up in the same conversations as LSD and psilocybin even though they work on totally different receptors? In this deep‑dive I define "mind-manifesting," untangle the three big branches of hallucinogens, give an extra basic chemistry crash course (Lego analogies included), and walk through the neurobiology that turns a few serotonin receptors into weeks of heightened brain plasticity. You’ll also hear why “set and setting” actually matter, how non‑hallucinogenic 5‑HT2A receptor compounds are storming drug development pipelines, and a rapid‑fire myth‑busting round that debunks everything from “natural equals safe” to “one trip and you might never come back.” By the end you’ll have a clear map of the molecules, mechanisms, and mind‑manifesting experiences that shape today’s psychedelic landscape—plus the language to call out sloppy headlines when you see them.Topics Discussed (+ Timestamps):(00:00:00) Welcome back & why it's long past time for a Psychedelics 101 primer(00:01:52) 1956 flash‑back: Osmond, Huxley, and coining “psychedelic”(00:03:54) Two scientific litmus tests—5‑HT2A receptor engagement and the subjective “mind‑manifesting” fingerprint(00:07:06) Meet the core four: LSD, psilocybin/psilocin, DMT/5‑MeO‑DMT, mescaline(00:10:36) Hallucinogen family tree—classical psychedelics vs. dissociatives vs. deliriants(00:13:54) Ketamine’s NMDA detour and why they are not psychedelics (but... are they though?)(00:16:40) MDMA as empathogens / entactogens—psychedelic "cousins" (again... are they?)(00:18:22) Why cocaine, meth, and opioids are not psychedelics(00:24:38) How scientists slice the pie differently: phenomenology, pharmacology, neurobiology(00:27:18) Psychoplastogens, metaplasticity, and the rise of non‑hallucinogenic 5‑HT2A receptor drugs(00:30:02) Chemistry crash course—tryptamines, ergolines, phenethylamines in Lego form(00:33:56) Nature‑grown vs. lab‑crafted, & pro-drugs(00:39:00) Dose, route, and how chemical compositions shape your trip(00:45:14) Receptor binding → signaling cascades → neuroplasticity(00:52:16) Default‑mode downshift, whole‑brain hyper‑connectivity, and the plasticity window(00:55:08) Set, setting, and why supportive containers slash bad‑trip rates(01:00:58) Myth‑busting lightning round—ketamine ≠ psychedelic, holes‑in‑brain, “natural = safe,” more(01:05:36) Key takeaways, why clear language matters, and a teaser for upcoming guest interviewsTry CURED Nutrition's CBN Night Oil, Serenity Gummies, & all of their other fantastic products--Use code 'UMA' for 15% off of all products!⁠⁠Try CLEARSTEM's amazing skincare products, including VITAMINSCRUB, CELLRENEW, CLEARITY, HYDRAGLOW, and HYDRABERRY--Use code 'UMA' for 15% off all products!Connect with me!My website⁠: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠umarchatterjee.com⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Instagram:⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠@UmaRChatterjee⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Twitter:⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠@UmaRChatterjee⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠TikTok:⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠@UmaRChatterjee⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Email: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠hello@umarchatterjee.com⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Support my work:⁠⁠⁠⁠⁠⁠⁠⁠https://ko-fi.com/umarchatterjee⁠⁠⁠⁠⁠⁠⁠⁠Have a guest you want on the show? Fill out the ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Guest Suggestion Form!⁠
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On episode 37 of A Chat with Uma, I hit pause on the lived experience & nitty-gritty research and rewind all the way to Psychedelics 101: What exactly counts as a psychedelic? Why do ketamine and MDMA show up in the same conversations as LSD and psilocybin even though they work on totally different receptors? In this deep‑dive I define "mind-manifesting," untangle the three big branches of hallucinogens, give an extra basic chemistry crash course (Lego analogies included), and walk through the neurobiology that turns a few serotonin receptors into weeks of heightened brain plasticity. You’ll also hear why “set and setting” actually matter, how non‑hallucinogenic 5‑HT2A receptor compounds are storming drug development pipelines, and a rapid‑fire myth‑busting round that debunks everything from “natural equals safe” to “one trip and you might never come back.” By the end you’ll have a clear map of the molecules, mechanisms, and mind‑manifesting experiences that shape today’s psychedelic landscape—plus the language to call out sloppy headlines when you see them.Topics Discussed (+ Timestamps):(00:00:00) Welcome back & why it's long past time for a Psychedelics 101 primer(00:01:52) 1956 flash‑back: Osmond, Huxley, and coining “psychedelic”(00:03:54) Two scientific litmus tests—5‑HT2A receptor engagement and the subjective “mind‑manifesting” fingerprint(00:07:06) Meet the core four: LSD, psilocybin/psilocin, DMT/5‑MeO‑DMT, mescaline(00:10:36) Hallucinogen family tree—classical psychedelics vs. dissociatives vs. deliriants(00:13:54) Ketamine’s NMDA detour and why they are not psychedelics (but... are they though?)(00:16:40) MDMA as empathogens / entactogens—psychedelic "cousins" (again... are they?)(00:18:22) Why cocaine, meth, and opioids are not psychedelics(00:24:38) How scientists slice the pie differently: phenomenology, pharmacology, neurobiology(00:27:18) Psychoplastogens, metaplasticity, and the rise of non‑hallucinogenic 5‑HT2A receptor drugs(00:30:02) Chemistry crash course—tryptamines, ergolines, phenethylamines in Lego form(00:33:56) Nature‑grown vs. lab‑crafted, & pro-drugs(00:39:00) Dose, route, and how chemical compositions shape your trip(00:45:14) Receptor binding → signaling cascades → neuroplasticity(00:52:16) Default‑mode downshift, whole‑brain hyper‑connectivity, and the plasticity window(00:55:08) Set, setting, and why supportive containers slash bad‑trip rates(01:00:58) Myth‑busting lightning round—ketamine ≠ psychedelic, holes‑in‑brain, “natural = safe,” more(01:05:36) Key takeaways, why clear language matters, and a teaser for upcoming guest interviewsTry CURED Nutrition's CBN Night Oil, Serenity Gummies, & all of their other fantastic products--Use code 'UMA' for 15% off of all products!⁠⁠Try CLEARSTEM's amazing skincare products, including VITAMINSCRUB, CELLRENEW, CLEARITY, HYDRAGLOW, and HYDRABERRY--Use code 'UMA' for 15% off all products!Connect with me!My website⁠: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠umarchatterjee.com⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Instagram:⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠@UmaRChatterjee⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Twitter:⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠@UmaRChatterjee⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠TikTok:⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠@UmaRChatterjee⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Email: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠hello@umarchatterjee.com⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Support my work:⁠⁠⁠⁠⁠⁠⁠⁠https://ko-fi.com/umarchatterjee⁠⁠⁠⁠⁠⁠⁠⁠Have a guest you want on the show? Fill out the ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Guest Suggestion Form!⁠
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