Changes in the responses of horizontal gaze velocity Purkinje cells in the cerebellar
flocculus and ventral paraflocculus.
As in the case of the control of eye position by the flocculus described above, elemental movements allowing the optimization of joint position are assumed by distinct cerebellar areas.
Fuchs, "Role of primate flocculus during rapid behavioral modification of vestibuloocular reflex.
Godaux, "Existence in the nucleus incertus of the cat of horizontal-eye-movement related neurons projecting to the cerebellar flocculus, " Journal of Neurophysiology, vol.
To verify this idea, the team administered local anaesthetic to the
flocculus and studied its effect on learning.
Visual input to the VNC arises from a subcortical pathway which includes the accessory optic tract, the medullary reticular formation and prepositus hypoglossi; however, visual information also converges on the VNC via the cerebellar
flocculus and inferior olive, and a diversity of other sensory information (e.g, proprioceptive and somatosensory input from the spinal cord) is also integrated within the VNC.
The evidence for cerebellar damage is supported by two experimental findings: (1) the increase in the postsynaptic potentials produced by gamma aminobutyric acid in the vestibulooculomotor system and (2) the increase in the rate of Purkinje's cell discharge at the cerebellar
flocculus. [11] Deficits in some cranial nerves (V and VII) can also occur, so facial paralysis and impairment of the Vth cranial nerve are not considered to be rare in phenytoin toxicity.