CCK and Anxiety: Similarly, ANOVA revealed no significant surgical group main effect between CCK-SAP vs. SAP for: time in open section (F[1, 15] = 0.0103, p = 0.92) and number of open section entries (F[1,15] = 0, p = 1.0; groups had equal means) in the zero maze test of innate anxiety (Supplementary Fig. 1a), as well as center zone distance (F[1,15] = 0.198, p = 0.663), number of center zone entries (F[1,15] = 0.6269, p = 0.441), and total distance (F[1,15] = 0.1784, p = 0.679) in the open field test (Supplementary Fig. 1b).