TY - RPRT TI - Operant photic evoked potential control, unmediated by selective orientation. AU - J P Rosenfeld AU - B E Hetzler AU - W Kosnik PY - 1974 DO - 10.1016/0031-9384(74)90104-8 UR - https://pubmed.ncbi.nlm.nih.gov/4438461/ ID - 4438461 ER -