The neuropsychology of emotional expression is not limited to the description of visible manifestations, but proposes to analyze the neurobiological mechanisms that generate them, the cognitive structures that modulate them and the clinical and social impacts they produce, argues Prof. Freitas-Magalhães, the world's leading expert for Neuroscience and Biobehavioral Psychology and the Encyclopedia of Human Behavior, by Elsevier, Oxford, in his pioneering and extraordinary book on emotion and face in intellectual disability. Based on the F-M Facial Action Coding System 6.0 (F-M FACS 6.0), the most advanced facial coding system today, the book introduces an objective and scientific reading of emotion, integrating neurofacial units, neuromicroexpressions and Neural Gross Behaviors (NGBs), which expand face analysis to body behavior. By focusing on people with intellectual disabilities, this book demonstrates that emotion remains active, structured and functional, although organized in a distinct way, revealing its own expressive patterns, characterized by a lower cortical modulation and a greater predominance of subcortical mechanisms. Emotion does not disappear with the limitation Cognitive - reveals itself in an even more essential way. Aimed at psychologists, doctors, researchers and professionals in the areas of health, education and human behavior, this book is positioned as an international reference at the intersection between neuroscience, facial expression and intellectual disability.