"Locked-in" state (also called pseudocoma)

Can be produced by a lesion of both cerebral peduncles or a lesion of the basis pontis interrupting the corticospinal and corticobulbar tracts bilaterally, but sparing the tegmentum (reticular formation and sensory pathways). Patient is fully conscious with normal sensation; may be able to communicate by eye-blinks/movements if CN III connections intact. Compare to coma.