Erowid.org: Erowid Reference 1620 : Psychopathology and psychophysiology of minimal LSD-25 dosage. A preliminary dosage-response spectrum : Greiner T, Burch NR, Edelberg R

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Greiner T, Burch NR, Edelberg R. “Psychopathology and psychophysiology of minimal LSD-25 dosage. A preliminary dosage-response spectrum”. Arch. Neurol. & Psychiatr.. 1958;79:208. <a name="ref">Greiner T, Burch NR, Edelberg R.</a> <a href="/references/1620">"Psychopathology and psychophysiology of minimal LSD-25 dosage. A preliminary dosage-response spectrum"</a> <i>Arch. Neurol. & Psychiatr.</i>. 1958;79:208.
Texts Abstract (this page) Full Text - English (114 K) Full Text - English (217 K) Show Articles by Greiner T Burch NR Edelberg R Article IDs LSDID: 0484 Erowid RefID: 1620 PubMedID: unknown Collections Hofmann Collection MDMA Collection All References	Abstract Double-blind studies on 14 healthy subjects confirmed that LSD fails to elicit a physiological response in doses less than 20 mcg. Dramatic psychic symptoms, e.g. deviations from normal in body image, thought, and emotion, occurred only with doses in excess of 20 mcg. However, careful observation and questioning revealed certain changes in affect and psychomotor activity with doses as low as 7 mcg. Classical schizophrenia-like symptoms first began to appear when the dose exceeded 30 mcg.
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