Pattern of neural responses to verbal fluency shows diagnostic specificity for schizophrenia and bipolar disorder - Costafreda, S. G.; Fu, C. H. Y.; Picchioni, M.; Toulopoulou, T.; McDonald, C.; Kravariti, E.; Walshe, M.; Prata, D.; Murray, R. M.; McGuire, P. K. (BMC Psychiatry, 2011)