RT Journal Article SR Electronic T1 Cerebro-cerebellar networks facilitate learning through feedback decoupling JF bioRxiv FD Cold Spring Harbor Laboratory SP 2022.01.28.477827 DO 10.1101/2022.01.28.477827 A1 Boven, Ellen A1 Pemberton, Joseph A1 Chadderton, Paul A1 Apps, Richard A1 Costa, Rui Ponte YR 2022 UL http://biorxiv.org/content/early/2022/01/28/2022.01.28.477827.abstract AB Behavioural feedback is critical for learning in the cerebral cortex. However, such feedback is often not readily available. How the cerebral cortex learns efficiently despite the sparse nature of feedback remains unclear. Inspired by recent deep learning algorithms, we introduce a systems-level computational model of cerebro-cerebellar interactions. In this model a cerebral recurrent network receives feedback predictions from a cerebellar network, thereby decoupling learning in cerebral networks from future feedback. When trained in a simple sensorimotor task the model shows faster learning and reduced dysmetria-like behaviours, in line with the widely observed functional impact of the cerebellum. Next, we demonstrate that these results generalise to more complex motor and cognitive tasks. Finally, the model makes several experimentally testable predictions regarding (1) cerebro-cerebellar task-specific representations over learning, (2) task-specific benefits of cerebellar predictions and (3) the differential impact of cerebellar and inferior olive lesions. Overall, our work offers a theoretical framework of cerebro-cerebellar networks as feedback decoupling machines.Competing Interest StatementThe authors have declared no competing interest.