A method for reprogramming a fibroblast into a human induced neuronal cell (hIN) is described. The method comprises expressing heterologous reprogramming factors Bm2, Myt11, Zic1, Olig2, Asc11 or any combination thereof, in said fibroblast, and culturing the fibroblast in a medium comprising BDNF, NT3, GeM or any combination thereof. Biomarkers describing the obtained hiN cells are also presented. In another aspect, methods for screening compounds using the hiN cells is described.
