Neuroscience is the scientific study of how the nervous system develops,its structure,and what it does.With the development of different sciences and technologies,neuroscience has become an interdisciplinary science that collaborates with other fields,and the research approach of neuroscience has also changed greatly.Molecular imaging is a powerful tool for neuroscience that can be used for understanding disease,identifying biomarkers,and developing novel therapeutics.Molecular imaging plays an important role in neuroimaging,especially for investigations of the living brain.