Lawrence Kruger 
Pain and Touch [PDF ebook] 

An explosion of advances in the area of tactile perception and pain led to the development of this comprehensive, state-of-the-art text on basic research and clinical practice. Equal parts psychology and neuroscience, Pain and Touch covers peripheral cutaneous tactile information processing, sensory mapping, tactile exploratory behavior, neurophysiology of nociception and nociceptors in pain research, clinical scaling methods for psychophysics of pain, and paincontrol, pathology, and therapeutics.