The present invention is a method for effecting rapid improvement in cognition in subjects suffering from conditions or diseases related to the A beta peptide, including Alzheimer's disease, Down's syndrome, cerebral amyloid angiopathy, mild cognitive impairment, and the like. The method comprises administering anti-A beta antibodies to the subject, especially antibodies having a high affinity for soluble forms of A beta . X-15240
RAPID IMPROVEMENT OF COGNITION IN CONDITIONS RELATED TO A-BETA