Stepwise multiple regression analysis for glucose metabolism in the right anterior cingulate cortex and ventromedial prefrontal cortex (N = 140).

Controlled for age, sex, and the temperament dimensions. Degrees of freedom (7,132).Dependent variable was the average glucose metabolism level of the right subgenual anterior cingulate cortex and ventromedial prefrontal cortex.ROI definitions: the right anterior cingulate cortex: box center at x = 7, y = 26, z = −6, volume = 10×10×10 mm; right vmPFC: box center at x = 7, y = 40, z = −18, volume = 14×14×14 mm.These definitions were based on the previous studies (32, 33).