Table 1.
Caudate nucleus | |||||||
---|---|---|---|---|---|---|---|
Chronic cocaine SA | Time-off from cocaine SA | + Chronic Rac | |||||
100 mg/kg | 1000 mg/kg | 4 mo | 6 mo | 9 mo | 30 d Tx | ||
Subject | BL | (% BL) | (% BL) | (% BL) | (% BL) | (% BL) | (% BL) |
C-7434 | 4.58 | 89 | 80 | 80 | – | 78 | 72 |
C-7440 | 3.54 | – | 50 | – | – | 83 | – |
C-7441 | 3.46 | 83 | 86 | 72 | 76 | 73 | 90 |
C-7453 | 4.30 | 73 | 63 | 56 | 97 | – | – |
C-7457 | 4.88 | 88 | 68 | 47 | 72 | 57 | 68 |
Mean | 4.15 | 83.25 | 69.40 | 63.75 | 81.67 | 72.75 | 76.67 |
SEM | 0.32 | 4.23 | 7.10 | 8.65 | 7.75 | 6.50 | 8.29 |
Putamen | |||||||
C-7434 | 5.41 | 94 | 82 | 75 | – | 78 | 80 |
C-7440 | 4.19 | - | 50 | – | – | 96 | – |
C-7441 | 4.48 | 86 | 73 | 68 | 75 | 68 | 89 |
C-7453 | 5.11 | 80 | 60 | 60 | 96 | – | – |
C-7457 | 5.01 | 95 | 68 | 51 | 65 | 53 | 70 |
Mean | 4.84 | 88.75 | 66.60 | 63.50 | 78.67 | 73.75 | 79.67 |
SEM | 0.25 | 4.09 | 6.12 | 5.97 | 9.13 | 10.42 | 6.72 |
Ventral Striatum | |||||||
C-7434 | 3.23 | 103 | 77 | 70 | – | 81 | 99 |
C-7440 | 3.26 | - | 61 | – | – | 98 | – |
C-7441 | 3.22 | 94 | 72 | 72 | 88 | 76 | 91 |
C-7453 | 3.27 | 92 | 64 | 68 | 94 | – | – |
C-7457 | 3.78 | 90 | 63 | 52 | 55 | 46 | 59 |
Mean | 3.35 | 94.75 | 67.40 | 65.50 | 79.00 | 75.25 | 83.00 |
SEM | 0.12 | 3.31 | 3.40 | 5.28 | 12.12 | 12.50 | 14.97 |
SA Self-administration.
The bold values show group mean data (differentiating group mean data from the individual subject data).