fissure of sylvius: the deepest and most prominent of the cortical fissures; separates the frontal lobes and temporal lobes in both hemispheres
sulcus: (anatomy) any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain
identity theft: the co-option of another person's personal information (e.g., name, Social Security number, credit card number, passport) without that person's knowledge and the fraudulent use of such knowledge