Figure 3
From: Regulation of dopaminergic function: an [18F]-DOPA PET apomorphine challenge study in humans.

Correlation between baseline Kicer and percentage change in Kicer under apomorphine challenge (triangle=0.03 mg kg−1 dose, circle=0.005 mg kg−1 dose), indicating that the effect of apomorphine on dopamine synthesis capacity depends on baseline dopamine synthesis capacity.