Accompanying signs and symptoms may include decerebrate posturing; fixed, dilated pupils; coma or profound stupor; quadriparesis; absent corneal reflex; negative oculocephalic reflex; and obliteration of the gag reflex.
Apneustic respirations
Expiratory apnea
Breath-holding spell
Periodic breathing
Hypoxic ventilatory response
Agonal respiration
Bradypnea
Sleep paralysis