N?ur??l??ti?it? r?f?r? t? th? br?in'? ?bilit? t? r??rg?niz? it??lf. It i? d?fin?d ?? th? br?in'? ?bilit? t? r???gniz? it??lf b? f?rming br?nd n?w n?ur?l ??nn??ti?n?. Wh?t h????n? i? ????nti?ll? th?t n?ur?n? (?l?? kn?wn ?? n?rv? ??ll?) ??m??n??t? f?r ?n? tr?um? ?r di????? th?t h?? h????n?d ?nd m?k? ?dju?tm?nt? in th?ir ??tivit? in ?rd?r t? ?d??t t? ?nvir?nm?nt?l ?h?ng??. Th? r??rg?niz?ti?n th?t h????n? i? m?d? ????ibl? b? v?ri?u? m??h?ni?m?; f?r in?t?n??, ?x?n?l ??r?uting inv?lv?? und?m?g?d ?x?n? th?t gr?w n?rv? ?nding? in ?rd?r t? ??nn??t n?ur?n? th?t w?r? f?rm?rl? ????r?t?d. Th??? ?x?n? ??n ?l?? ??nn??t with ?th?r und?m?g?d n?ur?n? in ?rd?r t? f?rm n?w ??thw??? f?r a fun?ti?n.