TY - RPRT TI - Principal component analysis learning algorithms: a neurobiological analysis. AU - K J Friston AU - C D Frith AU - R S Frackowiak PY - 1993 DO - 10.1098/rspb.1993.0125 UR - https://pubmed.ncbi.nlm.nih.gov/8265675/ ID - 8265675 ER -