The Intellectual Basis: Neurobiology is concerned with, unveiling the biological mechanisms by which nervous systems mediate behavior. The MBB Track in Neuroscience (formerly Neurobiology) is planned to provide students with the tools to study nervous systems biologically from molecules to behavior. Neuroscientists focus on the brain and its effect on behavior and cognitive functions, or how people think. They also examine what happens to the nervous system when people have neurological, psychiatric, and neurodevelopmental disorders.