Low-Dose LSD Alters Early and Late Event-Related Potentials to Emotional Faces.
Psychedelic medicine (New Rochelle, N.Y.) December 1, 2024 Connor Haggarty, Hanna Molla, James Glazer et al. 2 citations
A low dose of LSD (26 µg) alters the brain's electrical response to neutral and happy faces, but not angry faces. In a double-blind, placebo-controlled experiment with 39 healthy adults, LSD reduced the amplitude of the N170 brain wave to neutral faces and reduced the P300 brain wave to neutral and happy faces, while angry faces were unaffected. These results suggest that low-dose LSD specifically changes how the brain processes non-threatening social cues, which may help explain reports of improved mood.