Fig. 3From: Stereotactical normalization with multiple templates representative of normal and Parkinson-typical reduction of striatal uptake improves the discriminative power of automatic semi-quantitative analysis in dopamine transporter SPECTEffect size d of the separation between normal and reduced putamen SBR. The effect size d characterizes the separation of the two Gaussians from the fit of the SBR histograms (mean ± standard deviation of the effect size estimates from histogram analysis of 1000 random subsamples each comprising 90% of the whole DAT-SPECT sample)Back to article page