While psychoactive drugs are the usual treatment choice for problem be
haviors in individuals with Alzheimer's disease (AD), non-drug treatme
nts are increasingly sought. This article describes applied behavior a
nalysis, the predominant nondrug treatment approach for behavior probl
ems in people with cognitive impairments associated with developmental
disabilities. Applied behavior analysis identifies the causes of an i
ndividual's problem behavior through ''functional assessment'' and the
n employs treatment methods that address those causes. Functional asse
ssment seeks information on environmental and internal factors influen
cing a problem behavior, emphasizing the function, or purpose the prob
lem behavior serves for the individual. Applied behavior analysis meri
ts further investigation as a treatment approach to behavior problems
in AD.