Table 5.
Principal component analysis (PCA) of brain region activation and behavior.
| Rotated component matrix—cocaine CPP | Rotated component matrix—social interaction CPP | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Component | Component | ||||||||
| 1 | 2 | 3 | 4 | 1 | 2 | 3 | 4 | ||
| PrL | 0.839 | PrL | 0.900 | ||||||
| IL | 0.597 | 0.687 | IL | 0.875 | |||||
| LO | 0.539 | 0.832 | LO | 0.818 | |||||
| Cg2 | 0.931 | Cg2 | 0.506 | 0.730 | |||||
| Cg1 | 0.974 | Cg1 | 0.758 | 0.501 | |||||
| CPu | 0.507 | 0.649 | 0.529 | CPu | 0.954 | ||||
| AcbSh | 0.980 | AcbSh | −0.936 | ||||||
| AcbC | 0.937 | AcbC | −0.854 | ||||||
| DG | −0.899 | DG | 0.813 | −0.521 | |||||
| Ce | 0.927 | Ce | 0.992 | ||||||
| BLA | 0.980 | BLA | 0.852 | −0.504 | |||||
| VTA | −0.961 | VTA | 0.825 | 0.535 | |||||
| AID | −0.848 | AID | 0.969 | ||||||
| GI | 0.569 | 0.547 | GI | 0.977 | |||||
| Time_in_coc | 0.853 | Time_in_int | 0.918 | ||||||
Shown are factor loadings of brain regions and time spent in the stimulus associated compartment.