Andrew Huberman· PhD
And the MRI, seeing deep into the brain was probably our most exciting result where we didn't just see some functional brain changes, but we've seen some anatomical brain changes as well. And we used a technique called diffusion tensor imaging that looks at the cabling of the brain, the white matter tracts. And we saw a change in major tracts. So we limited our search space to really thick tracts. Really thick fibers. And the fibers that came through as changing were ones that traveled between the prefrontal cortex and the thalamus and the striatum. There were two tracks, two prefrontal tracks that changed. And they changed in the direction of a decrease in axial diffusivity, which could be interpreted as tract integrity where a decrease would be an increase in tract integrity.