Interdependance of the level of the steady potential of the brain and visual evoked potentials in human aging: the norm and Alzheimer's disease.

The interrelationships between the amplitude-temporal parameters of the visual evoked potential (VEP) and of the level of the steady potential (LSP) of the brain in healthy middle-aged and elderly people and in Alzheimer's disease patients. The existence of a statistically significant correlation between the LSP and the amplitude-temporal characteristics of the VEP. The interrelationship is intensified both during aging in the norm and especially in Alzheimer's disease patients. The most stable positive correlation exists between the local LSP and in the occipital region and the amplitudes of the N1 and P2 components of the VEP.