CONTENTS 



PAGE 



Foreword vii 



Chapter I. Introduction 1 



Chapter II. Problems 4 



Chapter III. Material and Methods 17 



PART I. SOMATIC SENSORY SYSTEM 



Chapter IV. Thalamic Termination of Afferent Somato-sensory Fiber 



Tracts. Intrathalamic Fiber Systems 23 



Chapter V. Origin, Course, and Termination of Somato-sensory Thala- 



mo-cortical and Thalamo-striate Fibers 27 



Chapter VI. Extent and Boundaries of the Somato-sensory Cortex 47 



Chapter VII. Cortical Terminations of Somato-sensory Afferent Fibers 55 



Chapter VIII. Function and Disturbances of the Somato-sensory Radiation 



and of the Somato-sensory Projection Cortex 68 



Chapter IX. Results of the Present Investigations of the Somatic Sensory 



System 70 



1. Afferent somato-sensory tracts from lower regions of the neuraxis to 



the thalamus 70 



2. Descending cortico-thalamic and other cortico-fugal fibers 71 



3. Somato-sensory radiqition 72 



4. Boundaries of the somato-sensory projection cortex 74 



5. Cortical terminations of the somato-sensory afferent fibers 76 



6. Function of the somato-sensory projection cortex 77 



PART II. AUDITORY SYSTEM 



Chapter X. Origin, Course, Termination, and Internal Organization of the 



Auditory Radiation 81 



Chapter XI. Location, Extent, and Function of the Auditory Cortex. 87 



1. Boundaries of the auditory projection cortex. Cortical terminations 



of the auditory fibers 87 



2. Probable functional significance of the posterior Sylvian receptive 



region 90 



Chapter XII. An Attempt to Explain the Minute Function of the Auditory 



System 92 



Chapter XIII. Results of the Present Investigations of the Auditory System 101 



1. Auditory radiation 101 



2. Boundaries of the auditory projection cortex. Internal organization, 



function, and disturbances of the auditory radiation and of the 

 auditory projection cortex 102 



[xiii] 



