Table 3.
Descriptive Statistics and Bivariate Correlations among Study Variables
| M / SD or n / % | 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
|---|---|---|---|---|---|---|---|---|
| 1 Externalizing PS | 0.62/0.12 | -- | ||||||
| Neural Phenotype | ||||||||
| 2 Network Connectivity | 0.05/0.09 | .43* | -- | |||||
| 3 L Amygdala Participation Coefficient | 0.64/0.07 | .28* | .48* | -- | ||||
| 4 R Amygdala Participation Coefficient | 0.63/0.07 | .25* | .52* | .49* | -- | |||
| 5 L rACC Participation Coefficient | 0.65/0.06 | .17* | .18* | −.03 | .03 | -- | ||
| Cognitive Phenotype | ||||||||
| 6 Inhibitory Control | 0.03/1.03 | −.23* | −.20* | −.12 | −.25* | −.13 | -- | |
| Psychiatric Phenotype | ||||||||
| 7 Alcohol/Substance Use Diagnosis | 101/65.6 | .10 | .14 | .03 | .08 | .06 | −.17* | -- |
Note. PS = Polygenic Score. Network Connectivity: average resting-state connectivity in the neural network associated with the externalizing PS (see Figure 1). L= left hemisphere. rACC= Rostral anterior cingulate cortex.
*
p <.05