Fig. 4.
Object recognition and object in place data from rats that self-administered meth in daily 1 or 6 hr session and controls. A) Object recognition index for control, 1 hr, and 6 hr groups on test day. Data are represented as an index between the time spent exploring the novel object/time with novel + familiar objects. B) Object in place recognition index for control, 1 hr, and 6 hr groups on test day. Data are represented as an index between time spent exploring objects in the changed position/time with both sets of objects. Significant differences from control are indicated (*p<0.05).