[Spontaneous rhythmic discharges in the motor nerves of posterior limbs of decerebrate immobilized cats]

Spontaneous rhythmic discharges (fictitious locomotion) were recorded in motor hindlimb nerves of decerebrated animals with intact caudal hypothalamic region. Stimulation of this region led to the appearance of fictitious locomotion. Spontaneous discharges did no-appear after decerebration at lower levels and in spinalized cats. A conclusion is made on the presence of structures in the caudal hypothalamus which are necessary for the activation of lower locomotor centres and the production of spontaneous rhythmic discharges in motor nerves.