<qa>  What is the primary function of fMRI?Involving functional imaging measures, the intervention study, an adequate platform for the detection of intervention effects on neurobiological basis using fMRI dar. Here, the cerebral blood flow in specific activation as a measure of neuronal and synaptic activity and integrity both in cross-section of a subsample of healthy elderly people studied determined and changes in cerebral activity patterns in people with severe AD, aMCI or slightly in comparison pre-post interventions. There are detectable much earlier in the pathogenesis of functional changes as structural, using fMRI, the study is to make a significant contribution to prove whether a modular cognitive intervention altered neural and synaptic activity and whether this change is accompanied by an improvement in cognitive performance. 