Table 2.

Absolute effect size (|Cohen’s d|) of subcortical regions

Region	HC versus PD-D	HC versus PD-MCI	NC-PD versus PD-D	PD-MCI versus PD-D
Right accumbens area	0.89	0.29	0.86	0.63
Left accumbens area	0.80	0.36	0.85	0.45
Right amygdala	0.48	0.07	0.51	0.46
Left amygdala	0.52	0.11	0.60	0.40
Right caudate	0.52	0.31	0.54	0.21
Left caudate	0.44	0.47	0.28	0.06
Right putamen	0.55	0.26	0.57	0.24
Left putamen	0.54	0.35	0.50	0.11
Right thalamus proper	0.55	0.28	0.80	0.90
Left thalamus proper	0.56	0.06	0.75	0.66