UPDATE ON SCHIZOPHRENIA – The North American Prodrome Longitudinal Study (NAPLS) is an ongoing collaborative research project by a consortium of research centres, including the University of Toronto. [For the background see Addington et al. Schizophr Bull 2007; 33: 665-672; free full text at  www.ncbi.nlm.nih.gov/pmc/articles/PMC2526151/?tool=pubmed.]