Fig. 3.

The cerebellar network as isolated with Independent Component Analysis (ICA) of the olfactory fMRI. (A) One independent component was associated with a cerebellar network, consisting of the posterior and lateral parts of cerebellum bilaterally. (B) This independent component (IC) coincided temporally (time course in red) with the olfactory stimulation of the tested fMRI task design (blue). (C) The s-mode values (measure of the effect size for each participant) were significantly higher in healthy controls than PD patients (p = .026). Color bars are given in terms of T-statistic. R: right hemisphere. The spatial brain map was created with FSLeyes (FMRIB Analysis Group, University of Oxford, UK).