PET and MRI
Cognitive Neuroscientists use these instruments to reveal the brain anatomy by showing its structure and interconnection.Thus, positron emission tomography (PET) scan is an instrument that uses radioactive tags to reveal the brain areas and is used to diagnose Alzheimer's disease while Magnetic resonance Imaging (MRI) is an instrument that form images in the brain by using changes in electrically charged molecules present in the magnetic field.