Neuropharmacology studies the effects of drugs on the nervous system,
including the brain, spinal cord, and the nerves that carry information
to and from different parts of the body. Psychopharmacology deals with
drug effects on behavioural and cognitive functions. In both cases, drug
actions may be studied from number of different perspectives. Some
investigators in these areas research negative or toxic effects of drugs
on neural and behavioural functions. Others focus on the development and
testing of new drugs for the treatment or prevention of specific
diseases of the nervous system, including neuropsychiatric disorders
such as schizophrenia, epilepsy, depression, Parkinson's and Alzheimer's
disease. Others may study drugs that are already in use, so as to
understand more precisely the neurobiological targets and mechanisms of
action of those drugs, or to gain new insights about the underlying
neurobiology of disease processes. Researchers in these areas also use
drugs as tools to elucidate basic mechanisms of neural and behavioural
functions using a wide variety of model systems, from cultured cells to
preserved neural tissues to intact behaving organisms.