I believe it is the frontal and perietal lobes. Brain is a vital organ and a part of the central nervous system together with the spinal cord. Phineas Gage suffered a traumatic brain injury when an iron rod was driven through his entire skull, destroying much of his frontal lobe. The analysis of the Einsten's brain shown complexity and pattern on certain parts of the cerebral cortex that is the prefrontal cortex and the perietal lobe.