If an ROI showed at least a nominally significant association with total BIS-11, we performed follow-up multiple regression analyses (with correction for multiple comparisons) to test for relationships between FE-PE2I BP ND and each of the BIS-11 3-factor 10 subscales (Attentional, Motor, and Nonplanning impulsivity), in order to see if a specific aspect of impulsivity was associated with regional DAT.
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Ventral striatal dopamine transporter availability is associated with lower trait motor impulsivity in healthy adults.
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