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. Author manuscript; available in PMC: 2008 Dec 28.
Published in final edited form as: Behav Brain Res. 2007 Jul 21;185(2):88–98. doi: 10.1016/j.bbr.2007.07.024

Figure 1.

Figure 1

(A) Locomotor activity and stereotyped behavior are sensitized after repeated amphetamine administration in the locomotor activity chamber. Values for locomotor activity represent mean±SEM (n=7–8 per group) of distance traveled during 2 hours following challenge injections of different doses of amphetamine after repeated administration of amphetamine or saline. (B) Values for stereotyped behavior represent mean±SEM (n=7–8 per group) assessed during the 30-second interval 20 minutes following challenge injections. * indicates significantly more amphetamine-induced locomotor activity or stereotyped behavior for each challenge dose after repeated amphetamine versus repeated saline administration.