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Table 2.

Significant associations between cerebro-cerebellar FC and self-reported measures of impulsivity.

Network	FC metric	Impulsivity scale	z	β	p	$R_{t r a i n}^{2}$	$R_{t e s t}^{2}$
BGN-cerebellum	Strength	BIS	−3	−0.31	0.038	0.07	0.068
BGN-cerebellum	Variability	SenSeek	3.1	0.3	0.037	0.068	0.063
Thal-cerebellum	Variability	SenSeek	3.3	0.32	0.019	0.078	0.074
FSN-cerebellum	Strength	BAS	−3.1	−0.29	0.033	0.08	0.073
	Variability	Premed	−3.5	−0.34	0.008	0.092	0.09
	Variability	SenSeek	3.3	0.32	0.019	0.078	0.08
pCun/PCC-cerebellum	Variability	Premed	−3.7	−0.36	0.003	0.11	0.096
pCun/PCC-cerebellum	Variability	SenSeek	3.6	0.35	0.005	0.093	0.086

Network	FC metric	Impulsivity scale	z	β	p	$R_{t r a i n}^{2}$	$R_{t e s t}^{2}$
BGN-cerebellum	Strength	BIS	−3	−0.31	0.038	0.07	0.068
BGN-cerebellum	Variability	SenSeek	3.1	0.3	0.037	0.068	0.063
Thal-cerebellum	Variability	SenSeek	3.3	0.32	0.019	0.078	0.074
FSN-cerebellum	Strength	BAS	−3.1	−0.29	0.033	0.08	0.073
	Variability	Premed	−3.5	−0.34	0.008	0.092	0.09
	Variability	SenSeek	3.3	0.32	0.019	0.078	0.08
pCun/PCC-cerebellum	Variability	Premed	−3.7	−0.36	0.003	0.11	0.096
pCun/PCC-cerebellum	Variability	SenSeek	3.6	0.35	0.005	0.093	0.086

Note. Strength: cerebro-cerebellar FC strength, Variability: temporal variability of cerebro-cerebellar FC strength, z: z-statistic, β: standardized regression coefficient, p: family-wise error adjusted p value, $R_{t r a i n}^{2}$ ⁠: median of explained variance in the training data, $R_{t e s t}^{2}$ ⁠: median of explained variance in the testing data.

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