[Neuropsychological evaluation]

The neuropsychological evaluation of Alzheimer's disease relies on a functional analysis of the various mental or cognitive activities (memory, speech, etc.). It demands the use of standardized and usually quantifiable methods such as mental tests, standard test batteries and behaviour scales. The objective of evaluation is threefolds: (1) to provide an early or difficult diagnosis (elderly or depressed patients); (2) to establish a qualitative and quantitative typology of demential state, and (3) to assess the effects of drugs on behaviour in therapeutic trials.