Table 1.
[11C]raclopride BPND |
Paired t test |
|||||
---|---|---|---|---|---|---|
Placebo | Methylphenidate | Change, % | t | p | dz | |
Composite ROI | 0.362 ± 0.035 | 0.354 ± 0.038 | 2.29 | 2.26 | 0.03 | 0.38 |
Bilateral amygdala | 0.408 ± 0.043 | 0.399 ± 0.046 | 2.10 | 2.08 | 0.05 | 0.38 |
R amygdala | 0.400 ± 0.044 | 0.397 ± 0.049 | 0.67 | 0.59 | 0.56 | 0.10 |
L amygdala | 0.417 ± 0.046 | 0.403 ± 0.047 | 3.20 | 2.64 | 0.01 | 0.48 |
Bilateral rACC | 0.326 ± 0.041 | 0.318 ± 0.041 | 2.10 | 1.55 | 0.13 | 0.27 |
R rACC | 0.332 ± 0.043 | 0.324 ± 0.045 | 1.75 | 1.13 | 0.27 | 0.20 |
L rACC | 0.323 ± 0.046 | 0.314 ± 0.044 | 2.29 | 1.68 | 0.10 | 0.30 |
Bilateral occipital | 0.191 ± 0.038 | 0.194 ± 0.036 | −0.02 | 0.82 | 0.42 | 0.15 |
R occipital | 0.195 ± 0.039 | 0.201 ± 0.038 | −0.04 | 1.67 | 0.11 | 0.31 |
L occipital | 0.188 ± 0.042 | 0.187 ± 0.038 | 0.00 | 0.33 | 0.75 | 0.06 |
Whole striatum | 3.347 ± 0.228 | 3.044 ± 0.225 | 8.98 | 10.65 | <0.001 | 2.63 |
Bilateral DCA | 3.039 ± 0.248 | 2.821 ± 0.246 | 7.13 | 9.22 | <0.001 | 1.70 |
R dorsal caudate | 3.029 ± 0.243 | 2.812 ± 0.260 | 7.16 | 8.51 | <0.001 | 1.58 |
L dorsal caudate | 3.050 ± 0.262 | 2.831 ± 0.244 | 7.05 | 7.70 | <0.001 | 1.42 |
Bilateral DPUT | 3.867 ± 0.276 | 3.471 ± 0.305 | 10.15 | 8.98 | <0.001 | 1.66 |
R dorsal putamen | 3.875 ± 0.275 | 3.478 ± 0.312 | 10.18 | 8.78 | <0.001 | 1.62 |
L dorsal putamen | 3.859 ± 0.282 | 3.465 ± 0.303 | 10.12 | 9.11 | <0.001 | 1.65 |
Bilateral VST | 2.605 ± 0.220 | 2.400 ± 0.229 | 8.00 | 11.79 | <0.001 | 2.07 |
R ventral striatum | 2.541 ± 0.224 | 2.335 ± 0.221 | 8.04 | 10.37 | <0.001 | 1.84 |
L ventral striatum | 2.667 ± 0.257 | 2.457 ± 0.264 | 7.83 | 8.89 | <0.001 | 1.63 |
Bilateral hippocampus | 0.308 ± 0.030 | 0.307 ± 0.035 | 0.52 | 0.46 | 0.65 | 0.08 |
R hippocampus | 0.302 ± 0.028 | 0.303 ± 0.035 | −0.39 | 0.19 | 0.85 | 0.03 |
L hippocampus | 0.314 ± 0.037 | 0.310 ± 0.039 | 0.97 | 0.77 | 0.45 | 0.14 |
BPND is reported as mean ± SD. Composite ROI is comprised of bilateral amygdala and rACC. ROIs were structurally-defined from each participant's anatomical FreeSurfer segmentation with the exception of striatal ROIs, which were manually segmented. R, Right; L, left.