Fig. 5.

PN responsive to 3 of the 4 task events. Data are spike rasters (red dots) and superimposed perievent time histograms (PETHs) of neuronal discharges (blue lines). A: PETHs of neuronal discharges referenced to the time of door opening (A1), food retrieval (A2), predator activation (A3), or reentry into the nest (A4). B1: trials with food retrieval but no predator activation. PETH is referenced to the time of food retrieval. B2: trials with predator activation but no food retrieval. PETH is referenced to the time of predator activation. In A2, raster trials were rank ordered by latency of predator activation (black dashed line). In A3, raster trials were rank ordered by latency of food retrieval (black dashed line). Black dots before or after time 0 in the PETHs mark when rats started foraging (left of origin) or reentered the nest (right of origin).