Tumors of the cerebellum / by Charles K. Mills [and others].

Date:
1905
Catalogue details

Licence: In copyright

Credit: Tumors of the cerebellum / by Charles K. Mills [and others]. Source: Wellcome Collection.

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    found degeneration of Perkinje’s cerebellar cells after removal of the semicircular canals. From this the inference may be drawn that the canals are the peripheral organs and the cerebellum is the centre. Lange, a student of Ewald, found when the semicircular canals were removed from a de- cerebellarized animal, in which full compensation had been established, that the characteristic symp- toms appeared such as are observed in a normal animal following destruction of the canals. Stefani concludes that the semicircular canals functionate not only through the cerebellum, but also through other parts of the nervous system. Lwciani thinks these, and other experiments, disprove the belief of Magendie (6) that the cerebellum is the centre of static and dynamic equilibrium. He believes it does play an important rdle in the maintenance of equili- brium, and agrees with Galio (7) that we move in space by the aid of impulses coming from the special senses. The results obtained from excitation of the cere- bellar surfaces have added to some extent to our knowledge of the influence of the cerebellum upon nervous activity. It is a mooted question whether ablation produces symptoms the result of stimulation consequent to the trauma of the operation, or pa- ralysis due to destruction of the cells. Ferrier (8) showed that unilateral burning of the cerebellum