ioRxiv preprint first posted online Apr. 5, 2016; doi: http://dx.doi.org/10.1101/047126. The copyright holder for this preprint (which was not peer-reviewed) is the author/funder. All rights reserved. No reuse allowed without permission. TITLE: Predictions shape confidence in right inferior frontal gyrus ABBREVIATED TITLE: Predictions shape confidence in rIFG Maxine T. Sherman 1, 2 , Anil K. Seth 1, 3 1, 2, 4 & Ryota Kanai 1 Sackler Centre for Consciousness Science, University of Sussex 2 School of Psychology, Pevensey Building, University of Sussex, Falmer, BN1 9RH, UK 3 Department of Informatics, Chichester 1, University of Sussex, Falmer, BN1 9QJ, UK 4 Department of Neuroinformatics, Araya Brain Imaging, Tokyo, Japan CORRESPONDING AUTHOR: Maxine T. Sherman, M.Sherman@Sussex.ac.uk, School of Psychology, Pevensey Building, University of Sussex, Falmer, BN1 9RH, UK NUMBER OF PAGES: 41 NUMBER OF FIGURES: 6 NUMBER OF TABLES: 3 WORD COUNT: Abstract, 219 words; Introduction, 619 words; Discussion, 1337 words. CONFLICTS OF INTEREST: The authors declare no competing financial interests.