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Previous research suggests that the Victoria Symptom Validity Test (VSVT) is effective in confirming or disconfirming the validity of a patient's reported cognitive impairments. We sought to(More)
Cognitive change following bilateral subthalamic nucleus (STN) deep brain stimulation (DBS) surgery in those with Parkinson's disease (PD) has led to equivocal results. The current study applied a(More)
Parkinson's disease (PD) is progressive neurological disease characterized by resting tremor, rigidity, akinesia, postural instability and cognitive changes. The symptoms of PD are debilitating and(More)