Perhaps the most challenging aspect of treatment is coaxing the implanted cells to grow the long distances from the spinal cord, where they would be implanted, out to the muscle, where they cause contraction.

The fMRI data was acquired using gradient-echo EPI sequences. The volume repetition time was 3000 ms, resulting in a total of 240 volumes acquired during each 12 min resting-state scan (120 pre- and 120 post-injection of placebo/psilocybin).