Figure 5.

Classes of place cell dynamics during the OPM task. (A) Schematic of the task with the phases of familiarization (T1), exposure to two objects (T2), and object movement (T3) separated by delays of 10 min (10′). The firing rate maps in (B–D) correspond to these phases. (B–C) Active units have a peak firing rate ≥3 Hz in two consecutive phases of the task. (B) Some active units exhibit high stability throughout the task. (C) Other active units remain active throughout the task but show little stability. (D) Emerging units are inactive at earlier phases of the task but upon object introduction or movement display place fields de novo. (E) Vanishing units have established place fields earlier in the task but become inactive following object introduction or movement.