Coordinated behavioural and neural variability in hippocampal reward coding

Abstract

An environment can be interpreted in multiple ways, with implications for behaviour and neural representations and for revision in these when circumstances change. Using two-photon calcium imaging in mouse CA1 during navigation under structured reward-location uncertainty, we found correlations between variability in anticipatory behaviour and the organization of place fields with respect to position and reward. Greater spatial anticipation was associated with enhanced reward-centred coding and increased generalisability of reward-aligned representations.