According to the Braak staging Lewy bodies first appear in the olfactory bulb, medulla oblongata and pontine tegmentum, individuals at this stage being asymptomatic.
22.
Non-REM sleep is initiated by neurons in the preoptic and anterior hypothalamic area, whereas REM sleep is eventually elicited by the cells in the pontine tegmentum.
23.
"' Nuclei colliculi superioris "'are groups of large cells in the middle gray layer of the superior colliculus and more laterally near the midbrain tegmentum.
24.
The tegmentum ( eye movement ), red nucleus ( gait ( natural limb movement ) ), substantia nigra ( reward ), and cerebral peduncle ( motor relay ).
25.
The "'midbrain tegmentum "'is the part of the midbrain extending from the substantia nigra to the cerebral aqueduct in a horizontal section of the midbrain.
26.
Inhibitory postsynaptic potentials are also used to study the basal ganglia of amphibians to see how motor function is modulated through its inhibitory outputs from the striatum to the tectum and tegmentum.
27.
The midbrain tegmentum contains thousands of neurons that are responsible for a variety of many functions, two of which include the control of movement and "'sensory systems " '.
28.
The pontine tegmentum contains pontine reticular formation, the mesopontine cholinergic system comprising the pedunculopontine nucleus and the laterodorsal tegmental nucleus, and the respiritory centres-the pneumotaxic centre and the apneustic centre.
29.
Neurosurgical experiments by Michel Jouvet and others in the following two decades added an understanding of atonia and suggested the importance of the pontine tegmentum ( dorsolateral pons ) in enabling and regulating paradoxical sleep.
30.
Later on, the upper eyelids become retracted and the eyes are turned downwards ( " sunset eyes " ) ( due to hydrocephalic pressure on the mesencephalic tegmentum and paralysis of upward gaze ).
