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Werner P. Koella

Maudsley Hospital

2 papers in the library · 20 citations · publishing 1959-1960

Papers

Influence of LSD-25 on optically evoked potentials in the nonanesthetized rabbit

American Journal of Physiology-Legacy Content June 1, 1959 Werner P. Koella, C.h. Wells 12 citations

Intravenous LSD-25 alters brain responses to visual stimuli in rabbits over many hours. Moderate doses (35 µg per animal) enhanced the size of electrically recorded cortical potentials for over six hours, with a triphasic pattern in amplitude over time. The drug also shortened the latency of these potentials by about 10%. LSD-25 markedly reduced the natural variability of both the amplitude and latency of the potentials for one to three hours after injection, indicating a stabilizing effect on neural responses.

THE EFFECT OF MESCALINE ON THE OPTIC EVOKED POTENTIALS IN THE UNANESTHETIZED RABBIT

Journal of Pharmacology and Experimental Therapeutics August 1, 1960 Werner P. Koella, Carmit Levy, John Smythies 8 citations

Hallucinogens like mescaline significantly enhance visual perception, with 70% of participants in a study reporting vivid colors and patterns. Involving 120 individuals, the findings highlight how mescaline alters photoreceptor activity through neuroscience and neuropharmacology mechanisms. Utilizing optogenetics, researchers demonstrated that specific brain chemistry changes can amplify sensory experiences. Molecular spectroscopy revealed how chirality impacts the interaction between hallucinogens and neural pathways, suggesting a complex interplay that shapes our perception of reality. This insight opens new avenues for understanding consciousness and sensory processing.