LOCOMOTOR DISTURBANCES IN DISEASE OF THE CEREBELLUM: A GRAPHIC STUDY

In a recent communication1 I reported the results obtained by graphically recording the gait of an animal after two different types of experimental lesions of the cerebellum. The records obtained indicated changes, characteristic of the type of lesion, which could not be detected by ordinary observation. This led me to believe that the graphic study of locomotion, which Marey truthfully designated "the microscope of movement," might be useful in the study of cerebellar disease in men: It might indicate not only the presence, but also the location of a lesion. For this method I had to consider:First. The type of locomotion should be one in which all the limbs are in action. Even in the ordinary progression of man, there is simultaneous activity of all the extremities, each arm swinging forward with the advance of the contralateral leg.2 But this activity of the arms is rudimentary, inconstant