Table 3.

Summary of drug specificity for the detected subcluster

Main effects	Left amygdala [frontal subcluster]
Main effects	F	P	η_p²
Cocaine	6.17	0.015	0.07
Nicotine	0.66	0.420	0.01
Alcohol	0.46	0.499	0.01
Marijuana	0.28	0.597	0.00
SSRIs^{^a}	1.97	0.164	0.02
Others^{^b}	0.82	0.367	0.01