Neuroscience is one of the most fascinating and rapidly growing fields in science today. This interdisciplinary field unites psychology, biology, and biochemistry (as well as in some instances chemistry, computer science, mathematics, philosophy, and linguistics) in the study of nervous system function. Neuroscience research spans multiple levels of analysis and includes basic and applied research problems. Just a few of the many topics addressed include the development of drug and other therapies to help people with brain injury or disease, the investigation of neural systems responsible for consciousness, and the exploration of cellular/molecular processes that underlie memory or drug addiction. Neuroscientists are employed in diverse settings including in research at universities or for pharmaceutical companies, in medicine as neurologists, clinical neurologists, neurosurgeons, physical therapists or psychiatrists, in policy-making bodies in the government and in the criminal justice system.