Free water in the substantia nigra on diffusion MRI correlates with clinical findings in Parkinson disease, providing a noninvasive disease progression marker.

Dr Andrew Wilner interviews Dr Nathan Fountain on the updated quality measures that aim to improve care of patients with epilepsy.

Dr Jacobs comments on a study of the effects of the common pollutants PAHs on cognitive ability and behavioral problems in urban school-age children.

A new way of viewing MS could have significant diagnostic and therapeutic implications.

A new study suggests that obesity-related microbiota have significant effects on the brain.

Alan Jacobs comments on a study that delineates the noncognitive course of Alzheimer disease dementia in the preclinical stages.

This pilot study evaluated psychotherapy, with and without sertraline and compared with usual care, in the management of nonepileptic psychogenic seizures.

The presence and burden of cerebral microbleeds has a significant effect on mortality in patients with nonvalvular AF and ischemic stroke.

What is the fallout from celebrities championing causes in health and illness? Dr Jeffrey A. Lieberman discusses negatives and positives.

Congressman Tim Murphy takes another stab at pushing this landmark legislation across the finish line. Dr Lieberman explains how important these long-overdue reforms are for everyone.