About this Research Topic
Although central concepts of this framework reach back to early perception science (Helmholtz 1863), these ideas remain in conflict with mainstream models of cortical processing in which feedforward projections integrate essential information and feedback connections serve only modulatory purposes (i.e. gain control).
In recent years however, the concept of predictive coding has been validated by a number of brain imaging studies investigating predictive feedback and the processing of prediction errors (i.e. Alink et al. 2010, Bar 2007, DenOuden et al. 2010, Egner et al. 2010, Rauss et al. 2011, Smith and Muckli 2010, Summerfield et al. 2006, Todorovic et al. 2011). Predictive coding is considered a significant paradigm shift in neuroscience, affecting every level of cortical processing and warrants inclusion in a unifying theory of the brain (Friston 2010), even though empirical evidence remains relatively scarce.
This research topic will focus on the latest evidence for the core features in the predictive coding framework – the role of (1) predictive feedback and (2) forward projected prediction errors. The term ‘predictive coding framework’ is adopted here to accommodate different models. Theoretical contributions, reviews, and empirical contributions using neurophysiological and brain imaging methods are welcomed for this issue.
Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.