The physiology and pathology of the cerebellum / by William A. Hammond.

  • William Alexander Hammond
Date:
1869
Catalogue details

Licence: Public Domain Mark

Credit: The physiology and pathology of the cerebellum / by William A. Hammond. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

    19/44 page 17
    tation. The experiment was repeated during half an hour, witli unvarying results. After the first in-itation, not three seconds elapsed before the movement fol- lowed ; subsequently, the interval between the irrita- tion and the effect was ]3rolonged. The movement only lasted a short time, and was diminished more and more. Alternately with, the cerebellum, I irritated the cerebrum, the corpora quadrigemina, the thalami op- tici, the corpora striata, but I have never seen the slight- est movement result from the irritation of these parts. Valentine confii-ms Budge's observations, but Volk- mann has never been able to do so, and Mtiller dis- credits them altofijetlier. I have endeavored to satisfy myself in regard to these points, by repeating Budge's experiments. In one instance, in whicb a cat was used, decided move- ments of the testicles were induced by irritating the cerebellum Avith a scalpel, or witb the continuous gal- vanic current, applied through two needles. The imi- tation of the left' lobe produced movements in the right testicle, and vice versa. When the current was passed ' through both lobes, both testicles were moved, and tbe penis was also brought into a state of erection. I was at first disposed to attach considerable importance to these facts, as indicating a very close relation between the cerebellum and the generative organs; but, by fur- ther observation, I found that irritation of the medul- la oblongata and of the cerebrum produced like move- ments in both testicles and the penis. I also found that irritation of the cerebellum, in either way I have speci- fied, caused movements of the intestines, of the abdom- inal muscles and of the muscles of the thigh and back. My experiments were performed upon three cats just killed. I am hence disposed to attach less importance to 2
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