Adult hiding to a predator odor.

(A) Adult testing following PN5-9 Shock+mother or Shock alone infant treatment had no effect on adult fear response to predator odor as measured via time spent in a hide box away from the threatening stimulus. (B) Adult testing following PN10-14 treatment reduced fear in both Shock+mother and Shock alone, as evidenced by reduced time spent hiding away from the predator odor, relative to controls. Estimation plots are below for the comparison of Control to Shock and of Control to Shock+mother. N = 8 for each group and age.