Owing to the kind co-operation of M. Meige, it has been possible to embody in this English version of _Les tics et leur traitement_ his latest definitions and views, as expressed in his monograph _Les tics_ (July, 1905). The passages thus derived are enclosed in brackets. In the making of the translation some of the clinical cases have been slightly abridged, and one or two omitted. The Bibliography has been revised, largely supplemented, and brought up to date. In a short Appendix reference is made to various matters in regard to tic on which discussion has recently centred, subsequent to the publication of Meige and Feindel's book. Indices of names and of subjects have been added. CONTENTS PAGE PREFACE BY PROFESSOR BRISSAUD v AUTHORS' PREFACE xiii NOTE BY THE TRANSLATOR xv CHAPTER I THE CONFESSIONS OF A VICTIM TO TIC 1 CHAPTER II HISTORICAL 25 CHAPTER III THE PATHOGENY OF TIC 36 TIC AND SPASM TIC AND MOTOR REACTIONS; REFLEX, CO-ORDINATED, FUNCTIONAL, AUTOMATIC, AND VOLUNTARY ACTS TIC AND CO-ORDINATION THE GENESIS OF TIC TIC AND WILL TIC AND HABIT TIC AND IDEA TIC AND CONSCIOUSNESS TIC AND POLYGON TIC AND FUNCTION CHAPTER IV THE MENTAL CONDITION OF TIC SUBJECTS 74 CHAPTER V THE ETIOLOGY OF TICS 96 CHAPTER VI PATHOLOGICAL ANATOMY 108 CHAPTER VII STUDY OF THE MOTOR REACTION 118 THE TYPE OF MOTOR REACTION--CLONIC TIC AND TONIC TIC INTENSITY OF THE MOTOR REACTION FREQUENCY AND RHYTHM--RHYTHMIC TIC ATTACKS LOCALISATION OF THE MOTOR REACTION--VARIABLE TICS--FIXED TICS CHAPTER VIII ACCESSORY SYMPTOMS 134 REFLEXES ELECTRICAL REACTIONS VASOMOTOR AND SECRETORY AFFECTIONS AFFECTIONS OF SENSATION CHAPTER IX THE DIFFERENT TICS 142 FACIAL TICS--TICS OF MIMICRY TICS OF THE EAR--AUDITORY TICS TICS OF THE EYES--NICTITATION AND VISION TICS A. EYELID TICS B. EYEBALL TICS TICS OF THE NOSE--SNIFFING TICS TICS OF THE LIPS--SUCKING TICS TICS OF THE CHIN TICS OF THE TONGUE--LICKING TICS TICS OF THE JAWS--BITING TICS--TICS OF MASTICATION MENTAL TRISMUS TICS OF THE NECK--NODDING AND TOSSING TICS--TICS OF AFFIRMATION, NEGATION, AND SALUTATION MENTAL TORTICOLLIS TICS OF THE TRUNK TICS OF THE ARM AND OF THE SHOULDER TICS OF THE HANDS--SCRATCHING TICS TICS AND WRITING TICS OF THE LOWER EXTREMITIES--WALKING AND LEAPING TICS SPITTING, SWALLOWING, AND VOMITING TICS--TICS OF ERUCTATION AND OF WIND SUCKING TICS OF RESPIRATION--SNORING, SNIFFING, BLOWING, WHISTLING, COUGHING, SOBBING, AND HICCOUGHING TICS CHAPTER X TICS OF SPEECH 206 ECHOLALIA COPROLALIA CHAPTER XI THE EVOLUTION OF TICS 221 DISEASE OF GILLES DE LA TOURETTE VARIABLE CHOREA OF BRISSAUD CHAPTER XII ANTAGONISTIC GESTURES AND STRATAGEMS 236 CHAPTER XIII THE COMPLICATIONS OF TICS 242 CHAPTER XIV