[The readiness potential--movement-correlated changes in bioelectric brain activity].

The Bereitschaftspotential which belongs to the group of slow potentials can be recorded in the period of preparation to a voluntary motor act and is connected with changes of the level of central nervous activation. This paper is concerned with general questions of classification of Bp in the complex of movement-related brain potentials, with the topographic distribution over the scalp, and with the relation of Bp to some motor functions of the cortex. The relationship to psychological factors affecting the Bp is discussed.