Fig. 8.

Effects of apomorphine (0.6 mg/kg, s.c.;filled symbols) or vehicle (Veh; (open symbols) administration on prepulse inhibition in animals with sham (circles) or 6-OHDA (squares) lesions of the nucleus accumbens. Apomorphine administration increased startle reactivity to a similar degree in sham and lesioned animals but had no effect on prepulse inhibition, because the effects on pulse-alone and prepulse-pulse startle amplitudes were similar in all groups. See text for statistical comparisons (n = 9/group).