Neocortex wani bangare ne na kwakwalwar kwakwalwa a cikin kwakwalwa wanda ke da hannu cikin manyan ayyuka na fahimi kamar su hasashe, tunanin sararin samaniya, tunani mai hankali, da harshe. Shi ne ɓangaren kwakwalwar da ya samo asali a kwanan nan, kuma ana samunsa ne kawai a cikin dabbobi masu shayarwa. An raba neocortex zuwa wurare daban-daban waɗanda ke da alhakin ayyuka daban-daban, kamar sarrafa gani, sarrafa sauti, da sarrafa motar. Wani lokaci kuma ana kiransa da "sabon cortex."