Fig. 2.

Home-cage social proximity interactions. RFID tracking of mice in multiple occupancy cages enables an estimate of social proximity scores. A) still from a video with overlay of RFIDs for individual animals; B) the base plate array recognises unique RFIDs and records animal locations concurrently; C) cumulative time spent in close proximity (<75 mm) during day and night for each pair of animals in the cage. In this instance, animals A and B spend less time interacting closely with animal C and this is more apparent at night.