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The rising phase of evoked DA responses during 4 consecutive stimulus trains (1-s trains with 2-s intervals) at KYN-insensitive (grey solid triangles) and KYN-sensitive (black solid circles) sites are significantly different. The response to each train was re-zeroed in this plot. These responses were subjected to 3-way ANOVA: the responses at the KYN-insensitive and KYN-sensitive sites are significantly different (F(df=1, 400)=20.6, p<0.00001).
