Fig. 4
From: Clinical and brain functional correlates of instrumental rigidity measurement in Parkinson’s disease
(A) Left physician-rated rigidity correlated with perfusion positively in the right midbrain and negatively in the right sensory-motor cortex. (B) Right physician-rated rigidity correlated negatively with left sensory-motor cortical perfusion. (C) Left bias difference correlated with perfusion positively in the right substantia nigra and negatively in the right sensory-motor cortex. (D) Right bias difference correlated negatively with left sensory-motor cortical perfusion. No correlation with the elastic coefficient was found on either side. Positive and negative correlations are colored in red-yellow and blue-cyan, respectively. Images were generated using MRIcroGL version 1.2 (https://www.nitrc.org/projects/mricrogl)37. MNI; Montreal Neurological Institute coordinates.
