This systematic review describes human molecular imaging studies which have investigated alterations in extracellular DA levels during performance of behavioral tasks. al., 1989a; Ross et al., 1989b; Seeman et al., 1989). Indications that this sensitivity could also be observed using positron emission tomography (PET) technology rapidly followed, when increased displacement of the D2/3 tracer (18F)-N-methylspiroperidol… Continue reading This systematic review describes human molecular imaging studies which have investigated