Reflex Control of Posture and Movement

abducens motoneurons abducens nucleus acceleration activity amplitude animals axons Berthoz Brain Res brain stem central cerebellar cerebellum cervical contralateral cortical discharge dorsal dynamic effects EPSPs evoked excitation excitatory extensor extraocular muscles eye movements eye muscle eye position fibers fibres firing rate flexor flocculus forelimb frequency function Grillner head movements hindlimb horizontal inhibition inhibitory injection innervation input interaction interneurones ipsilateral IPSPs labyrinthine latency lesion Lond Lundberg macular mechanisms medial modulation monkey monosynaptic motor units msec muscle afferents muscle spindles neck muscle Neurophysiol nystagmus oculomotor optokinetic organization otolith pathways pattern phase Physiol Physiology Pompeiano posterior postural potentials Precht prepositus projections proprioceptive Purkinje cells rabbit receptors recorded rectus response reticular formation rostral rotation saccades semicircular canals sensory shown sinusoidal spikes spinal cord static stretch superior colliculus synaptic tilt tonic tract velocity vertical vestibular neurons vestibular nuclei vestibulo-ocular reflex vestibulospinal visual