Figure 2
From: Separate neural representations of depression, anxiety and apathy in Parkinson’s disease
Partial regression plots for a sample ROI-ROI functional connection in PD patients. Partial regression plots are presented to illustrate in PD patients the incremental effect of each neuropsychiatric scale on Fisher’s transformed values by removing the effects of all other scales. The right gyrus rectus - right parahippocampal gyrus functional connection was chosen arbitrarily as an example. The associations are shown between Fisher’s transformed values and (A) BDI-II; (B) STAI-state; (C) apathy; (D) PD-MCI and (E) UPDRS-III. The y-axis shows the residuals from regressing Fisher’s transformed values against all neuropsychiatric scales other than the scale of interest, and the x-axis shows the residuals from regressing the scale of interest against all other neuropsychiatric scales. The linear fits are shown in solid lines and confidence intervals in dotted lines. Partial r = square root of coefficient of partial determination. The BDI-II, STAI-state and apathy scales are significantly associated with the right gyrus rectus - right parahippocampal gyrus functional connection.
