(A) Graphic representation of rate of inflation of the intracranial balloon in the occipital region. When the balloon was inflated on second last time (arrow), the animal immediate stopped breathing and went into coma; because on withdrawal of the fluid the animal immediately started to breathe, and became quite normal with no ill-effects. (Reproduced from Hayreh SS. 1965a)
(B) Schematic diagram showing pushing down of cerebellum into foramen magnum by a distended occipital lobe balloon. Abbreviation: Tent. Cer. = Tentorium cerebelli.