Fig. 4.

Distribution of the brain regions that showed significant difference between unimodal Hall+ and Hall- patients, displayed as in Fig. 3, for the theta (panel A), beta (panel B), and gamma (panel C) band, and for peak frequency (panel D). Red: higher relative power in unimodal Hall+ patients. Blue: lower relative power/peak frequency in unimodal Hall+ patients. Gray: brain regions that did not differ between the groups. Note: subcortical regions are not shown in this figure. See table S6 for the subcortical regions per frequency band that showed significant difference between the two groups and table S5 for the mean relative power/peak frequency values in the two groups.

Hall-: Parkinson's disease patients without hallucinations; unimodal Hall+: Parkinson's disease patients with only visual hallucinations.