TY - RPRT TI - Evidence for a procedural-learning-based system in perceptual category learning. AU - W Todd Maddox AU - Corey J Bohil AU - A David Ing PY - 2004 DO - 10.3758/bf03196726 UR - https://pubmed.ncbi.nlm.nih.gov/15732708/ ID - 15732708 ER -