On the far right of Square Ledge, The Brain climbs up the suprisingly steep section of rock best categorized by the white blob of a protrusion that undoubtedly looks like a brain. Start above the dihedral system to the left, climbing up relatively pumpy moves to a steep and reachy top out. No worries though- your on toprope.
Location
On the far right of the crag, left of the Practice Session crack. Look for the Crystal Blob.