Image Gallery: Brain Function

Scientists use different techniques—like magnetic resonance imaging (MRI), electroencephalography (EEG), or positron emission tomography (PET)—to measure neural activity and other kinds of brain changes at the same time that people are performing mental tasks. They can also study similar brain regions in animals to understand how neurons work together to perform different functions. These types of studies allow us to pinpoint which areas of the brain are involved in specific thought processes.