Figure 4From: Tics are caused by alterations in prefrontal areas, thalamus and putamen, while changes in the cingulate gyrus reflect secondary compensatory mechanismsCorrelation of ADC with tic severity. Tic severity (according to YGTSS) and the ADC correlated positively in the putamen bilaterally, the medial frontal gyrus bilaterally, and the left thalamus (p < 0.001, uncorrected).Back to article page