Preface -- Contents -- Introduction to the Problem and Approach -- Basic Factors in the Human Brain's Differentiation Underlying Cerebral Organization of Language Ability -- Cerebral Organization of Language and Thought -- Temporal-Occipital Region: Visual Object Perception, Thought and Word -- Temporal Region and "Sound-Articulate" Speech -- Parietal-Occipital Region: Spatial Perception and Word Form -- Frontal Region: Thought and Sentence -- Conclusions, Reflections, Perspectives -- Thought and Focal Brain Damage -- Perspectives for Psychiatry -- References -- Index.