Download or read book Functional Neuroanatomy of Pain written by K.G. Usunoff and published by Springer Science & Business Media. This book was released on 2006-02-27 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pain is an unpleasant but very important biological signal for danger. Nociception is necessary for survival and maintaining the integrity of the organism in a potentially hostile environment. Pain is both a sensory experience and a perceptual metaphor for damage and it is activated by noxious stimuli that act on a complex pain sensory apparatus. However, chronic pain having no more a protective role can become a ruining disease itself, termed "neuropathic pain".