Brain scans link regular psychedelic use to reduced reactivity to fearful faces and stronger prefrontal regulation during emotional threat processing

Regular psychedelic use is associated with altered brain responses to emotional threat, including reduced amygdala reactivity to fearful faces and stronger engagement of prefrontal regions involved in regulation. The findings point to a pattern in which repeated psychedelic exposure may relate to calmer processing of negative social cues rather than heightened threat sensitivity. Functional brain imaging compared regular psychedelic users with non-users during tasks involving fearful facial expressions. Differences appeared in neural circuits tied to salience, emotion, and cognitive control, suggesting that emotional information may be processed with less automatic alarm and more top-down modulation. These results matter because they connect long-term psychedelic use with measurable changes in social-emotional brain function. The pattern may help explain reported shifts in mood, openness, and emotional flexibility, while still leaving open whether psychedelics caused the differences or whether people with those traits were more likely to use them.