Sample recordings from 7-week-old hESC-derived Cerebral Organoids (COs). WWOX's coding sequence was re-introduced into week 6 WWOX-KO COs using lentiviral transduction (lenti-WWOX) (F) Immunofluorescent staining showing WWOX expression in different populations in WWOX-KO organoids following infection with lentivirus. NT= non-treated. Scale = 50µm . 