Effect of Age on Vibratory Sensibility

CONTENTS Review of the Literature Author's Experiments Varieties of Patients Studied Technic of Examination Results Transmission of Vibratory Sensibility and Cause of Its Loss Nature and Path of Transmission of Vibratory Sensibility Location of the Pathologic Lesion Vascular Supply of the Spinal Cord Spinal Arteriosclerosis the Probable Cause of Vibratory Loss Summary and Conclusions The results of this study—diminution or loss of the sensation in the lower extremities of a large percentage of persons in the involutional period of life—are deemed worthy of record, because it is during this period that changes in vibratory sensibility assume considerable importance for diagnosis; if such an alteration is found in normal persons, it indicates the need for wariness in arriving at a diagnosis based on alterations in this form of sensation. REVIEW OF THE LITERATURE In a review of the literature, no study of a large number of persons from this standpoint was