Fast (a) and slow (b) domains are significantly altered by the
frequency of the stimulus (two-way ANOVA with repeated measures: *,
stimulation frequency F(1.4,15.3) = 38.022, p <
0.000001). 180-pulse stimulation lasts for 12 s at 15 Hz, 6 s at 30
Hz, 4 s at 45 Hz, and 3 s at 60 Hz. 30 Hz stimulation produces significantly
higher maximum evoked DA overflow (c) in the slow domain (t test of independent samples: §, p < 0.05).