Goldman-Rakic's research showed that methods employed to study the sensory cortices could be adapted to the highest order prefrontal cortical areas, revealing the circuit basis for higher cognitive function.[10] Because of Goldman-Rakic, scientists began to better understand the neurobiological basis of higher cognitive function, and of such disorders as schizophrenia, Alzheimer's, Attention deficit hyperactivity disorder (ADHD), cerebral palsy, Parkinson's disease, and dementia.