Group | Hour | |||||
---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | 5 | 6 | |
aCSF | 13.00 ± 2.78 | 11.25 ± 1.27 | 5.67 ± 1.61 | 4.83 ± 1.20 | 5.67 ± 1.24 | 3.83 ± 1.22 |
Dorsal striatum | ||||||
1 μg CTAP | 10.50 ± 2.87 | 8.25 ± 1.80 | 4.75 ± 1.34 | 2.62 ± 0.92 | 5.50 ± 2.18 | 2.38 ± 1.05 |
3 μg CTAP | 17.43 ± 3.82 | 7.57 ± 2.36 | 9.29 ± 3.23 | 7.86 ± 1.72 | 4.23 ± 2.20 | 5.57 ± 2.11 |
NAc core | ||||||
1 μg CTAP | 7.5 ± 1.55 | 5.00 ± 2.12 | 7.25 ± 3.35 | 7.75 ± 0.48 | 6.00 ± 2.48 | 2.00 ± 1.15 |
3 μg CTAP | 19.20 ± 3.94 | 7.40 ± 1.29 | 6.40 ± 2.62 | 4.00 ± 2.55 | 6.20 ± 2.91 | 8.00 ± 2.00 |
NAc dorsomedial shell | ||||||
1 μg CTAP | 18.22 ± 4.93 | 7.89 ± 2.50 | 6.22 ± 0.97 | 7.00 ± 3.23 | 3.29 ± 1.60 | 8.86 ± 4.40 |
3 μg CTAP | 11.40 ± 0.68 | 6.60 ± 1.60 | 3.20 ± 1.24 | 5.60 ± 1.40 | 0.80 ± 0.49 | 1.20 ± 0.73 |
NAc ventral shell | ||||||
1 μg CTAP | 17.33 ± 5.67 | 13.89 ± 5.25 | 8.44 ± 4.07 | 7.88 ± 1.98 | 8.38 ± 2.96 | 6.25 ± 4.18 |
3 μg CTAP | 12.11 ± 0.89 | 8.78 ± 0.97 | 3.33 ± 1.57 | 4.89 ± 1.24 | 3.33 ± 1.00 | 1.00 ± 0.71 |
↵aData are mean ± SEM. Site-specific blockade of MORs with 1 or 3 μg CTAP into any region of the striatum did not impact locomotor activity as measured by cage cross frequency during each 10 min interval sampled during the first 6 h of cohabitation.