neurobiology
noun /ˌnjʊərəʊˌbaɪˈɒlədʒi/
  /ˌnʊrəʊˌbaɪˈɑːlədʒi/
[uncountable]- the scientific study of the biology of the nervous system, especially in connection with behaviour- A big question in neurobiology is how animals, including humans, make decisions.