[Characteristics of processes of excitation and inhibition of monosynaptic spinal reflexes after removal of the labyrinth].

Some electrophysiological changes were found within 1.0-1.5 hrs after removal of the labyrinth. The amplitude of extensor monosynaptic reflexes decreased. Recurrent inhibition weakened, amplitude of flexor monosynaptic reflexes increased, presynaptic inhibition decreased and recurrent inhibition was reinforced. Functional role of spontaneous influences of the labyrinth removal involves not only the reinforcement of extensor motoneurons but an increasing and stabilizing of reciprocal inhibition, restriction and stabilizing of reciprocal inhibition, restriction of information inflow and amplifying of differences of excitatory levels between active and passive reflex pathways.