on ▁in ▁order ▁to ▁help ▁treat ▁a ▁patient ▁with ▁some ▁dis order . ▁Ne ur om od ulation ▁offers ▁a ▁wide ▁degree ▁of ▁ther apy ▁for ▁many ▁patients , ▁but ▁due ▁to ▁the ▁nature ▁of ▁the ▁dis orders ▁it ▁is ▁currently ▁used ▁to ▁treat ▁its ▁effects ▁are ▁often ▁temporary . ▁Future ▁goals ▁in ▁the ▁field ▁hope ▁to ▁alle vi ate ▁that ▁problem ▁by ▁increasing ▁the ▁years ▁of ▁effect ▁until ▁DB S ▁can ▁be ▁used ▁for ▁the ▁remainder ▁of ▁the ▁patient ' s ▁life . ▁Another ▁use ▁for ▁neur om od ulation ▁would ▁be ▁in ▁building ▁ne uro - interface ▁prost h etic ▁devices ▁that ▁would ▁allow ▁quad ri ple g ics ▁the ▁ability ▁to ▁man eu ver ▁a ▁cursor ▁on ▁a ▁screen ▁with ▁their ▁thoughts , ▁thereby ▁increasing ▁their ▁ability ▁to ▁interact ▁with ▁others ▁around ▁them . ▁By ▁understanding ▁the ▁motor ▁cor tex ▁and ▁understanding ▁how ▁the ▁brain ▁signals ▁motion , ▁it ▁is ▁possible ▁to ▁em ulate ▁this ▁response ▁on ▁a ▁computer ▁screen . ▁ ▁Eth ics ▁ ▁St em ▁cells ▁The ▁eth ical ▁debate ▁about ▁use ▁of ▁emb ry onic ▁stem ▁cells ▁has ▁stir red ▁controvers y ▁both ▁in ▁the ▁United ▁States ▁and ▁abroad ; ▁although ▁more ▁recently ▁these ▁deb ates ▁have ▁less ened ▁due ▁to ▁modern ▁adv ances ▁in ▁creating ▁induced ▁pl ur ip ot ent ▁stem ▁cells ▁from ▁adult ▁cells . ▁The ▁greatest ▁advantage ▁for ▁use ▁of ▁emb ry onic ▁stem ▁cells ▁is ▁the ▁fact ▁that ▁they ▁can ▁differenti ate ▁( be come ) ▁nearly ▁any ▁type ▁of ▁cell ▁provided