[Presentation by the GRECO group of the French adaptation of a cognitive assessment scale used in Alzheimer type dementia].

A consensus group on cognitive evaluation in clinical research, the GRECO, carried out a French adaptation of the American ADAS. This "unique and consensual" version answers the purposes of the original version, taking into account the constraints and customs of the French language. After presenting the ADAS-cog rating scale, the principles underlying its design, and its various items, a review of the literature is proposed. This review deals with the ADAS as a diagnosis and assessment tool to evaluate both spontaneous evolution of dementia of Alzheimer's type and drug efficacy in clinical trials.