Nicotine-induced brain metabolism associated with anger provocation

Table 3 Stepwise linear regression for reaction time and length of retaliation

Dependent Variable	Predictors^a	Beta	t	P <	R ²	Collinearity ^b
Reaction Time	Left Thalamus	-0.750	4.538	0.0001	0.563	1.000
Length of Retaliation
	Left Cingulate Gyrus	-0.599	39.660	0.0001	1.000	1.218
	Right Uncus	1.068	107.318	0.0001		1.649
	Left Amygdala	-0.349	43.520	0.0001		1.906
	Left BA 9	0.679	56.707	0.0001		2.241
	Right Frontal Lobe	-0.635	45.924	0.0001		2.950
	Right BA 24	0.245	19.426	0.0001		3.281
	Left BA 30	-0.319	27.823	0.0001		3.479
	Left Parietal Lobe	0.471	34.911	0.0001		4.269
	Left BA 25	0.330	19.769	0.0001		5.069
	Right BA 9	0.238	16.405	0.0001		5.805
	Left BA 11	0.190	10.866	0.0001		9.191
	Left BA 38	-0.099	8.167	0.0001		10.802

^a The order of the predictors reflects the order of the stepwise linear regression
^b Condition Index (i.e., values above 15 may indicate possible collinearity problems)

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