Psychology & Psychiatry

Two key brain systems are central to psychosis, study finds

Inside the brains of people with psychosis, two key systems are malfunctioning: a "filter" that directs attention toward important external events and internal thoughts, and a "predictor" composed of pathways that anticipate ...

Genetics

Newly found genetic variant defends against Alzheimer's disease

Columbia researchers have discovered a genetic variant that reduces the odds of developing Alzheimer's disease by up to 70% and may be protecting thousands of people in the United States from the disease. The study, "Rare ...

Alzheimer's disease & dementia

A new diagnostic model offers hope for Alzheimer's

A new mathematical model offers hope for better prediction and treatment of Alzheimer's disease. Most mathematical models of Alzheimer's are theoretical, focusing on short term molecular and cellular-level changes that cannot ...