Fig. 2.
Prepulse Inhibition of Acoustic Startle: LS mean (± LS-SEM) acoustic startle amplitude (Vmax = maximum amplitude recorded 100 ms post-stimulus onset measured in arbitrary units of voltage change (mV)) verses prepulse intensity (dB, SPL). PP = prepulse intensity (dB). Inset: group main effect averaged across regimens and prepulse intensities. Trials with no stimulus given were interspersed as an internal check on equipment function (not shown). See tables for group sizes. *p < 0.05 vs. Sal.