In the recently published research criteria for the diagnosis of prodromal DLB [8], reduced dopamine transporter (DAT) uptake in basal ganglia represents one of the proposed biomarkers together with polysomnographic confirmation of REM sleep without atonia and reduced meta-iodobenzylguanidine uptake on myocardial scintigraphy. Here, SLC6A3 is linked to Lewy body dementia.