Erratum to "Brain mechanism of reward prediction under predictable and unpredictable environmental dynamics" [Neural Networks 19 (8) (2006) 1233-1241]

a Department of Bioinformatics and Genomics, Nara Institute of Science and Technology, Japan b Department of Computational Neurobiology, ATR Computational Neuroscience Labs, Japan c CREST, Japan Science and Technology Agency, Japan d Department of Psychiatry and Neurosciences, Hiroshima University, Japan e Initial Research Project, Okinawa Institute of Science and Technology, Japan f Brain Science Research Center, Tamagawa University Research Institute, Japan