TABLE 2.

ICC values for brain activation to fattening food cues in a priori regions of interest before and after a meal and for the change in activation because of the meal (postmeal minus premeal)¹

	Left ventral striatum	Right ventral striatum	Left amygdala	Right amygdala	Left dorsal striatum	Right dorsal striatum	Left insula	Right insula	mOFC	VTA
Premeal	0.00 (0.00, 1.00)	0.00 (0.00, 1.00)	0.12 (0.01, 0.92)	0.13 (0.01, 0.87)	0.00 (0.00, 1.00)	0.00 (0.00, 1.00)	0.00 (0.00, 1.00)	0.00 (0.00, 1.00)	0.15 (0.01, 0.86)	0.00 (0.00, 1.00)
Postmeal	0.19 (0.01, 0.81)	0.01 (0.00, 1.00)	0.07 (0.00, 0.99)	0.14 (0.00, 0.88)	0.13 (0.00, 0.88)	0.37 (0.10, 0.75)*	0.23 (0.03, 0.77)	0.22 (0.02, 0.76)	0.35 (0.08, 0.77)	0.61 (0.32, 0.84)*
Postmeal minus premeal	0.00 (0.00, 1.00)	0.06 (0.00, 0.99)	0.29 (0.05, 0.77)	0.52 (0.22, 0.81)*	0.03 (0.00, 0.99)	0.45 (0.16, 0.78)*	0.14 (0.01, 0.88)	0.16 (0.01, 0.81)	0.39 (0.11, 0.77)*	0.49 (0.20, 0.79)*

¹All values are ICCs; 95% CIs in parentheses. ICCs were calculated with the use of linear mixed models, and models were adjusted for sex. Parameter estimates used in the calculations were from fattening greater than nonfattening visual food-cue contrasts. n = 18 complete twin pairs; n = 39 individuals included in the statistical calculations. *P < 0.05. ICC, intraclass correlation; mOFC, medial orbital frontal cortex; VTA, ventral tegmental area.