Concurrent PET D2/D3 Receptor Imaging and fMRI Cue Reactivity in Smokers
This study aims to determine whether smokers have increased expression of dopamine D2/D3 receptors than do non-smokers and whether there is an association between D2/D3 expression, as measured with positron emission tomography, and functional MRI reactivity to smoking cues, which, when increased, predicts relapse to smoking after initial abstinence.