Fig. 3.

A–C: mean ± SE place × firing rate map correlation (0–1) calculated between two adjacent recording sessions for Cue Card OR, Drop-In OR, and Conventional OR protocols, respectively. Calculated correlations between Habituation 1 and Habituation 2 sessions is represented by “Hab1 versus 2”; correlation between Habituation 2 and sample is represented by “Hab 2 versus S”; and the correlation between sample and test object sessions is represented by “S versus T.” Darker colored bars indicate a 5-min delay between recording sessions whereas lighter colored bars represent a 20-min delay between adjacent sessions. *P < 0.01. OR, object recognition.