Neuroimaging is a set of techniques used to visualize the structure and function of the brain. It helps researchers and doctors understand how the brain works and identify abnormalities. Common methods include MRI (Magnetic Resonance Imaging), which provides detailed images of brain anatomy, and fMRI (functional MRI), which measures brain activity by detecting changes in blood flow. These techniques are essential in various fields, including neurology, psychology, and psychiatry. They assist in diagnosing conditions like stroke, tumors, and neurodegenerative diseases. Neuroimaging also plays a crucial role in research, helping scientists explore brain functions and the effects of different treatments.