SI times increase with repeated NPY injections into BLA. SI for animals injected bilaterally with NPY (10 pmol/100 nL) or Veh into the BLA daily for 5 d (D1–D5) was measured at times indicated. SI is presented relative to preinjection baseline values for each individual animal (linear mixed-model; treatment: F(1,100.6) = 54.0, p < 0.0001; time: F(4,44.7) = 0.611, p = 0.657; interaction: F(4,44.7) = 1.42, p = 0.24). Numbers of animals tested are indicated in each column. ***p < 0.001, Bonferroni's multiple-comparisons test.