S25-203 Brain-spanning Tissue Capture and Sequencing from Living Humans: Methods for Collection, Processing and Analysis of Tissue Residue on Intracranial Electrodes Stanford scientists have developed innovative methods for safely collecting, preserving, imaging, and molecularly profiling human brain tissue that remains on explanted intracranial electrodes used in neurosurgical procedures. Sam Vesuna Karl Deisseroth Vivek Buch Chandan Kadur