Brain Scans Beyond fMRI: What Comes Next in Psychiatry

fMRI gave psychiatry its first real window into the living brain — the default mode network, connectivity disruptions in depression, predictive biomarkers for treatment response. But the frontier has moved. This episode explores what comes next: wearable fNIRS caps that scan patients while they walk and talk, OPM-MEG helmets that track neural oscillations in real time, and new PET tracers that can actually count synapses in a living human brain. We ask the sharpest question: will any of these tools ever reach day-to-day clinical practice, or are they stuck in research labs forever? And we examine who gets validated next — from chronic fatigue patients to people with personality disorders — as imaging makes the invisible visible.