The opportunity, in a drug study of Alzheimer's disease, is taken to e
xplore the association of aggression and cognitive impairment. This is
an important association to explore in its own right. However, in vie
w of the increasing age of the population and the particular problems
aggression poses for carers, any association of aggression with cognit
ive impairment assumes particular importance. A marked association of
language impairment with aggression is demonstrated (Spearman R = -0.7
35, p = 0.0005, N = 18).