although tailored health interventions can be more effective in eliciting positive behavior change then generic interventions , the underlying neural mechanisms are not yet understood . 
 ninety - one smokers participated in a functional magnetic resonance imaging ( fmri ) session and a tailored smoking - cessation program . 
 we found that increases in activations in self - related processing regions , particularly dorsomedial prefrontal cortex , to tailored messages predicted quitting during a 4-month follow - up .