FIGURE 3.

Illustration summarizing the brain regions recorded across 39 studies. The illustration represents the zones recorded using fiber photometry across the selected studies, categorized into three types: Studies using naïve mice (13 studies, 54%, green) focused on 16 zones, with the BNST and PVN being prominent. Studies using anxiety‐inducing pathophysiological model mice (17 studies, 43.5%, purple) examined 17 zones, notably the NAc, PVN, ACC, and mPFC. Studies using both naïve and anxiety‐inducing pathophysiological model mice (5 studies, 13%, blue) investigated eight zones, with emphasis on the HPC and related areas. The BLA, PVN, IPN, NAc, and dmPFC stand out as the most frequently studied zones overall. *Studies from various hippocampal subregions.