Figure 1.

Time course of the number of swings assessed by the tail suspension swing test (TSST) for the SHAM and 6-OHDA lesioned rats in drug-free (circles) and apomorphine (APO, squares) induced condition. Day 0 represents the pre-surgery testing. 6-OHDA-S (blue) and 6-OHDA-R (red) are rats subjected to single (on the sacrifice day) or repeated (all testing days until sacrifice day) APO administration, respectively. Positive values indicate ipsilateral swings; negative values indicate contralateral swings. See Table S1 for the statistical difference between 6-OHDA and SHAM groups, and between time points to the pre-surgery condition (day 0).