Fig. 2: Classification plots for the SVM classifier utilizing ALFF, fALFF, ReHo, and FCS.

a ALFF; b fALFF; c ReHo; d FCS (āopen circleā represents patients with OCD, and āāletter Ćāā represents HCS). SVM support vector machine, ALFF amplitude of low-frequency fluctuations, fALFF fractional amplitude of low-frequency fluctuations, ReHo regional homogeneity, FCS functional connectivity strength, OCD obsessive-compulsive disorder, HCS healthy control subjects