Brain Disorders

What Is Progressive Myoclonic Ataxia? Progressive myoclonic ataxia is a movement disorder characterized by defective muscular coordination of a muscle group with its origin in the brain. The pathology is in the cerebellum.1 Myoclonus in a context of progressive ataxia ...

What Is Schizophrenia? Schizophrenia is a thought disorder characterized by psychotic symptoms and inappropriate and bizarre behavior. Schizophrenia involves dysfunction in any of these areas: Cognition which are thinking skills that include intellect, language, mathematical ability, memory, perception, reasoning, judgment, ...

What Is Stroke In Childhood? Stroke in childhood is a medical emergency during which blood flow to an area of the brain is stopped, causing infarction or death of the area of cells in the brain fed by the blocked ...

What Are Tremors? Tremors are repetitive patterns of involuntary muscle contraction and relaxation originating from disorder in the basal ganglia of the brain. See image of hand tremor (to left) courtesy of Antonio Piedade. Rythmic shaking may affect various parts of ...

What Is Cerebral Vasculitis? Cerebral vasculitis, also called vasculitis of the central nervous system (CNS), is an autoimune attack against elastin fibers in the walls of arteries that bring blood to the head. Early recogniton may reduce poor outcomes.1 Cerebral ...

What Is Vitamin B3 (Niacin)? Niacin is an essential water-soluble B vitamin that is required by all cells of the body. During digestion of food containing it, niacin (the form in food) is changed in the small intestines to the active form niacinamide (niacin ...