Parietal lobe
From Memory Alpha, the free Star Trek reference.
The parietal lobe is the part of the brain that is located in the middle of the cerebral hemispheres. It aids in integrating sensory information.
When a Bynar is born, a surgeon removes the child's parietal lobe and replaces it with a synaptic processor. (ENT: "Regeneration")
Doctor Crusher found a small structural defect in Picard's parietal lobe in 2370 that could lead to a number of neurological disorders, including Irumodic syndrome. The defect was so small it required a level-4 neurographic scan to be located. (TNG: "All Good Things...")
When the Pah-wraith-possessed Keiko O'Brien fell down from the upper level of the Promenade in 2373, she suffered a broken femur and a hairline fracture of the right parietal lobe. (DS9: "The Assignment")
- In the original script, Keiko had a fracture of the right parietal bone.
Denara Pel's parietal lobe had a bio-neural circuitry implant that supplemented her higher brain functions. (VOY: "Lifesigns")
