[Motor intention potential. Electrophysiologic objectization of a single intended movement].
Autocorrelation of the EEG was used to registrate a potential from the intact human scalp during intended, but not executed movements (dorsalflexion of the right hallux, imaginated in equal time intervals). This "Motor Intention Potential" (MIP) is a possible electrophysiological sign of the otherwise purely introspectively experienced intention of a voluntary movement and the cortex of the frontal lobes is suspected to be its origin. The average maximum amplitude height is 6 microV, and the potential shows a continuous decrease from the frontal to occipital region. The duration of MIP is in the range of seconds. Methodological questions are discussed, and the MIP is differentiated from other event-, movement- and imagination-related potentials. An attempt is made to place the motor intention potential in the context of existing movement theories.
D000200:Action Potentials; D001921:Brain / Q000502:physiology*; D002540:Cerebral Cortex / Q000502:physiology; D004553:Electric Conductivity; D006801:Humans; D009043:Motor Activity; D009068:Movement; D011199:Potentiometry
Das motorische Intentionspotential. Elektrophysiologische Objektivierung einer alleinigen Bewegungsabsicht.