TY - RPRT TI - Biofeedback produced slow brain potentials and task performance. AU - W Lutzenberger AU - T Elbert AU - B Rockstroh AU - N Birbaumer DO - 10.1016/0301-0511(82)90018-7 UR - https://pubmed.ncbi.nlm.nih.gov/7104426/ ID - 7104426 ER -