Jin Y, et al. - The physicians used 2 sensory modalities (visual and auditory) to investigate emotional processing in pre-deep brain stimulation (pre-DBS) Parkinson’s disease (PD) patients. On both the recognition and expression tasks, the PD group exhibited poorer performance. Facial emotion deficits and vocal emotion abnormalities were correlated with each other. The data also allowed us to speculate that emotional recognition and expression could share a common system.