The complexity of pain: part 1. No pain without gain: the augmentation of nociception in the CNS

References

• Bishop B. Pain: Its physiology and rationale for management. Part 1. neuroanatomical substrate of pain. Phys Ther 1980; 60: 13–20
   PubMed Web of Science ®Google Scholar
• Bishop B. Pain: Its physiology and rationale for management. Part 2. Analgesic systems of the CNS. Phys Ther 1980; 60: 21–23
   PubMed Web of Science ®Google Scholar
• Bishop B. Pain: Its physiology and rationale for management. Part 3. Consequences of current concepts of pain mechanisms related to pain management. Phys Ther 1980; 60: 24–37
   PubMed Web of Science ®Google Scholar
• Watson J. Pain mechanisms—A review; Part 1. Aus ] Physiother 1981; 27: 135–143
   PubMedGoogle Scholar
• Watson J. Pain mechanisms—A review; Part 2. Afferent pain pathways. Aus J Physiother 1981; 27; 6, 191–8
   PubMedGoogle Scholar
• Watson J. Pain mechanisms—A review; Part 3. Endogenous pain control mechanisms. Aus J Physiother 1982; 28: 38–45
   Google Scholar
• Charman RA. Pain theory and Physiotherapy. Physiotherapy 1989; 75: 247–254
   Google Scholar
• Walsh D. Nociceptive pathways—relevance to the physiotherapist. Physiotherapy 1991; 77: 317–21
   Google Scholar
• Sluka KA, Rees H. The neuronal response to pain. Physiother Theory Pract 1997; 13: 3–22
   Google Scholar
• Johnson MI. The physiology of the sensory dimensions of clinical pain. Physiotherapy 1997; 83: 526–36
   Google Scholar
• Bowsher D. Modulation of nociceptive input. In: Wells PE, Frampton V, Bowsher D (eds) Pain; Management and Control in Physiotherapy. Oxford: Butterworth Heinemann 1988, 30–6
   Google Scholar
• Melzack R, Wall PD. The Challenge of Pain 3rd edn Harmondsworth, Penguin 1988
   Google Scholar
• Yaksh TL, Malmberg AB. Central pharmacology of nociceptive transmission. In: Wall PD, Melzack R (eds) The Textbook of Pain 3rd ed. Edinburgh: Churchill Livingstone 1994; 165–200
   Google Scholar
• Fields HL, Basbaum AI. Central nervous system mechanisms of pain modulation. In: Wall PD, Melzack R (eds) The Textbook of Pain 3rd ed. Edinburgh: Churchill Livingstone 1994: 243–57
   Google Scholar
• Guyton AC. Basic Neuroscience 2nd edn. Philadelphia: WB Saunders and Company 1991
   Google Scholar
• Rang HP, Dale MM, Ritter JM. Analgesic drugs. In: Pharmacology 3rd edn. Edinburgh: Churchill Livingstone 1995: 609–33
   Google Scholar
• Wall PD. The gate control theory of pain mechanisms; A re-examination and a re-statement. Brain 1978; 101: 1–18
   PubMed Web of Science ®Google Scholar
• Fields HL. Pain. New York: McGraw-Hill 1987
   Google Scholar
• Besson JM, Chaouch A. Peripheral and spinal mechanisms of nociception. Physiolog Rev 1987; 67: 67–186
   PubMed Web of Science ®Google Scholar
• Newton R. Contemporary views on pain and the role played by thermal agents in managing pain symptoms. In: Michlowitz S (ed.) Thermal Agents in Rehabilitation 2nd ed. Philadelphia: FA Davies and Company 1990
   Google Scholar
• Jones SL. Anatomy of pain. In: Sinatra RS, Hord AH, Ginsberg B, Preble LM (eds) Acute Pain. Mechanisms and Management. St Louis: Mosby Year Book 1992: 8–28
   Google Scholar
• Campbell JN, Meyer RA. Plasticity of the neural events related to pain. In: Franzen O and Westman J (eds) Information Processing in the Somatosensory System. Wenner-Gren International Symposium Series, Volume 57, London: Macmillan Press 1989, Chapter 34: 453–9
   Google Scholar
• Coderre TJ, Katz J, Vaccarino, Melzack R. Contribution of central neuroplasticity to pathological pain: review of clinical and experimental evidence. Pain 1993; 52: 259–85
   PubMed Web of Science ®Google Scholar
• McMahon SB, Lewin GR, Wall PD. Central hyperexcitability triggered by noxious inputs. Curr Opin Neurobiol 1993; 3: 602–10
   PubMedGoogle Scholar
• Arbib MA. The Metaphorical Brain 2. Neural Networks and Beyond. New York: John Wiley and Sons 1989
   Google Scholar
• Broadbent D (ed.). The Simulation of Human Intelligence. Oxford: Blackwell 1993
   Google Scholar
• Crick F. The Astonishing Hypothesis—The Scientific Search for the Soul. London: Touchstone Books 1990
   Google Scholar
• Hardy JD. The Nature of Pain. J Chronic Dis 4: 22–51
   PubMedGoogle Scholar
• Liebeskind JC, Paul LA. Psychological and physiological mechanisms of pain. Annual Review Psychology 1977; 28: 41–60
   PubMed Web of Science ®Google Scholar
• Grzesiak RC. Chronic Pain: A psychobehavioural perspective. In: Ince LP (ed) Behavioural psychology in rehabilitation medicine; Clinical applications. Williams and Wilkins 1980, Baltimore, Chapter 8, 248–300
   Google Scholar
• Wolff BB. Ethnocultural factors influencing pain and illness behaviour. Clin J Pain 1985; 1: 23–30
   Google Scholar
• Sternbach RA (ed.). The psychology of pain 2nd ed. New York: Raven Press 1986
   Google Scholar
• Craig KD. Emotional aspects of pain. In: Wall PD, Melzack R (eds) The Textbook of Pain 3rd ed. Edinburgh: Churchill Livingstone 1994: 261–74
   Google Scholar
• Weisenberg M. Cognitive aspects of pain. In: Wall PD, Melzack R (ed.) The Textbook of Pain 3rd ed. Edinburgh: Churchill Livingstone 1994: 275–89
   Google Scholar
• French S. Pain: Some psychological and sociological aspects. Physiotherapy 1989; 75: 255–60
   Google Scholar
• Delvecchio Good MJ, Brodwin PE, Good BJ, Kleinmann A (eds). Pain as Human Experience. An Anthropological Perspective. Berkeley: University of California Press 1992
   Google Scholar
• Skevington SM. Psychology of Pain. Chichester: John Wiley and Sons 1995
   Google Scholar
• Kenton B, Crue BL, Carregal EJA. The role of cutaneous mechanoreceptors in thermal sensation and pain. Pain 1976; 2: 119–40
   PubMed Web of Science ®Google Scholar
• Nolan MF. Anatomic and physiologic organisation of neural structures involved in pain transmission, modulation and perception. In: Echternach JL (ed.) Pain: Clinics in Physical Therapy Vol 12. Edinburgh: Churchill Livingstone 1987; 1–37
   Google Scholar
• Rang HP, Bevan S, Dray A. Nociceptive peripheral neurons: cellular properties. In: Wall PD, Melzack R (eds) The Textbook of Pain 3rd ed. Edinburgh: Churchill Livingstone 1994; 57–78.
   Google Scholar
• Aimone LD. Neurochemistry and modulation of pain. In: Sinatra RS, Hord AH, Ginsberg B, Preble LM (eds) Acute Pain: Mechanism and Management. St Louis: Mosby Year Book 1992: 29–413
   Google Scholar
• Kilo S, Harding-Rose C, Hargreaves KM, Flores CM. Peripheral CGRP release as a marker for neurogenic inflammation: a model system for the study of neuropeptide secretion in rat paw skin. Pain, 1997; 73: 201–7
   PubMed Web of Science ®Google Scholar
• Chahl LA, Szolcsanyi J. Antidromic vasodilation and neurogenic inflammation. Neurose Lett 1983; 42:219–25
   Web of Science ®Google Scholar
• Zimmerman M. Neurobiological concepts of pain, its assessment and therapy. In: Bromm B (ed.) Pain Measurement in Man. Neurophysiological correlates of pain. Amsterdam: Elsevier Science Publications 1984: 15–35
   Google Scholar
• Noback CR, Strominger NL, Demarest RJ. The Human Nervous System 5th edn. London: Williams and Wilkins 1996
   Google Scholar
• Barr ML, Kiernan JA. The human nervous system; An anatomical viewpoint 6th edn. Philadelphia: JB Lippincott Company 1993
   Google Scholar
• Bear MF, Connors BW, Paradiso MA. Neuroscience: Exploring the brain. Baltimore: Williams and Wilkins 1996
   Google Scholar
• Lewin GR, Mendell LM. Nerve growth factor and nociception. Trends Neurosci 1993; 16: 353–9
   PubMed Web of Science ®Google Scholar
• Coggeshall RE, Dougherty PM, Pover CM, Carlton SM. Is large myelinated fibre loss associated with hyperalgesia in a model of experimental peripheral neuropathy in the rat? Pain 1993; 52: 362–3
   Web of Science ®Google Scholar
• Sinatra RS. Pathophysiology of acute pain. In: Sinatra RS, Hord AH, Ginsberg B, Preble LM (eds). Acute Pain: Mechanisms and Management. St Louis: Mosby Year Book 1992; 44–57.
   Google Scholar
• Stanton-Hicks M, Janig W, Hassenbusch S, Haddox JD, Boas R, Wilson P. Reflex sympathetic dystrophy: changing concepts and taxonomy. Pain 1995; 63:127–33
   PubMed Web of Science ®Google Scholar
• Levine J, Taiwo Y. Inflammatory pain. In: Wall PD, Melzack R (eds). The Textbook of Pain 3rd ed. Edinburgh: Churchill Livingstone 1994: 45–56
   Google Scholar
• McMahon S, Koltzenberg M. The changing role of primary afferent neurons in pain. Pain 1990; 43:269–71
   PubMed Web of Science ®Google Scholar
• Stern EB. The somatosensory system. In: Cohen H (ed.). Neuroscience for Rehabilitation, Philadelphia: JB Lippincott Company 1993: 45–79
   Google Scholar
• Handwerker HO, Kilo S, Reek PW. Unresponsive afferent nerve fibres in the sural nerve of the rat. J Physiol 1991; 435: 229–42
   PubMed Web of Science ®Google Scholar
• Dubner R, Bennett G. Spinal and trigeminal mechanisms of nociception. Ann Rev Neurosci 1983; 6:381–418
   PubMed Web of Science ®Google Scholar
• Dubner R, Hoffman DS, Hayes RL. Neuronal activity in medullary dorsal horn of awake monkeys trained in a thermal discrimination task, 3. Task-related responses and their functional role. J Neurophysiol 1981; 46: 444 —64
   PubMed Web of Science ®Google Scholar
• Fine PG, Ashburn MA. Functional neuroanatomy and nociception. In: Ashburn MA, Rice LJ (eds). The Management of Pain. Edinburgh: Churchill Livingstone, 1998; 1: 1–16
   Google Scholar
• Koyama N, Hanai F, Yokata T. Does intravenous administration of GABAa receptor antagonists induce both descending antinociception and touch-evoked allodynia? Pain, 1998; 76: 327–36
   PubMed Web of Science ®Google Scholar
• Ren K. Wind-up and the NMDA receptor: from animal studies to humans. Pain 1994; 59: 157–58
   PubMed Web of Science ®Google Scholar
• Magerl W, Wilk SH, Treede RD. Secondary hyperalgesia and perceptual wind-up following intradermal injection of capsaicin in humans. Pain 1998; 74: 257–68
   PubMed Web of Science ®Google Scholar
• Bennett GJ. Neuropathic pain. In: Wall PD, Melzack R (eds). The Texbook of Pain 3rd edition. Edinburgh: Churchill Livingstone 1994: 201–24.
   Google Scholar
• Daw NW, Stein PSG, Fox K. The role of NMDA receptors in information processing. Ann Rev Neurosci 1993; 16: 207–22
   PubMed Web of Science ®Google Scholar
• Li J, Simone DA, Larson AA. Wind-up leads to characteristics of central sensitisation. Pain, 1999; 79: 78–82
   Google Scholar
• Hökfelt T, Kellerth JO, Nilsson G, Pernow B. Substance P: Localisation in the central nervous system and in some primary sensory neurons. Science 1975; 190: 889–90
   PubMed Web of Science ®Google Scholar
• Thompson RF. The Brain: A neuroscience primer 2nd edition. New York: WH Freeman and Company, 1993
   Google Scholar
• Hebb DO. The Organisation of Behaviour: A Neuropsychological Theory. New York: Wiley, 1949
   Google Scholar
• Kandel ER, Hawkins RD. The biological basis of learning and individuality. Sci Am 1992: 53–60
   Google Scholar
• Bliss TVP, Lomo T. Long-lasting potentiation of synaptic transmission in the dentate area of the anaesthetised rabbit following stimulation of the perforant path. J Physio 1973; 232: 331–56
   PubMed Web of Science ®Google Scholar
• Bliss TVP, Lomo T. Discovering LTP. In: Bear MF, Connors BW, Paradiso MA (eds). Neuroscience: Exploring the brain. Baltimore: Williams and Wilkins 1996: 563 —4
   Google Scholar
• Bliss TVP, Collingridge GL. A synaptic model of memory: Long term potentiation in the hippocampus. Nature 1993; 361: 31–39
   PubMed Web of Science ®Google Scholar
• Morris RGM, Kandel ER, Squire LR. The neuroscience of learning and memory: Cells, neuronal circuits and behaviour. Trends Neurosci 1988; 11: 125–7
   Google Scholar
• Brinton RD. Learning and memory. In: Cohen H (ed.). Neuroscience for Rehabilitation. Philadelphia: JB Lippincott Company 1993, 247–81
   Google Scholar
• Madison DV, Malenka RC, Nicoll RA. Mechanisms underlying long-term potentiation of synaptic transmission. Ann Rev Neurosci 1991; 14: 379–97
   PubMed Web of Science ®Google Scholar
• Bailey CH, Kandel ER. Structural changes accompanying memory storage. Ann Rev Neurosci 1993; 55: 397–426
   Web of Science ®Google Scholar
• McBain CJ, Mayer ML. N-Methyl-D-Aspartic acid receptor structure and function. Physiol Rev 1994; 74: 723–60
   PubMed Web of Science ®Google Scholar
• Kaczmarek L, Kossut M, Shangiel-Kramska J. Glutamate receptors in cortical plasticity: molecular and cellular biology. Physiol Rev 1997; 77: 217–55
   PubMed Web of Science ®Google Scholar
• Kidd GL, Lawes N, Musa I. Understanding Neuromuscular Plasticity, a Basis for Clinical Rehabilitation. London: Edward Arnold, 1992: 87-95
   Google Scholar
• Tsien RW, Malinow R. Long-Term Potentiation: Presynaptic enhancement following postsynaptic activation of Ca++-dependent protein kinases. Cold Spring Harbour Symposia on Quantitative Biology 1990; 55: 147–59
   PubMedGoogle Scholar
• Bliss TVP, Errington ML, Lynch MA, Williams JH. Presynaptic mechanisms in Hippocampal Long-Term Potentiation. Cold Spring Harbour Symposia on Quantitative Biology 1990; 55: 119–29
   PubMedGoogle Scholar
• Bear MF, Malenka RC. Synaptic plasticity: LTP and LTD. Curr Opin Neurobiol 1994; 4: 389–400
   PubMedGoogle Scholar
• Hawkins RD, Kandel ER, Siegelbaum SA. Learning to modulate transmitter release: Themes and variations in synaptic plasticity. Ann Rev Neurosci 1993; 16:625–65
   PubMed Web of Science ®Google Scholar
• Bach-y-Rita P. Non-synaptic Diffusion Neurotransmission and Late Brain Reorganisation. New York: Demos 1995
   Google Scholar
• Schuman EM, Madison DV. Nitric oxide and synaptic function. Ann Rev Neurosci 1994; 17: 153–83
   PubMed Web of Science ®Google Scholar
• Rang HP, Dale MM, Ritter JM. Pharmcology 3rd edn. Edinburgh: Churchill Livingstone 1995: 203–13.
   Google Scholar
• Bradley D. Science: How to spot nitric oxide in the body. New Scientist 1993; 138: 1877
   Google Scholar
• Young S. The Body's vital poison. New Scientist, 1993; 36–40
   Google Scholar
• Bonhoffer T, Kossel A, Bolz J, Aertsen A. Modified Hebbian rule for synaptic enhancement in the Hippocampus and the visual cortex. Cold Spring Harbour Symposia on Quantitative Biology 1990; 55: 137–146
   PubMedGoogle Scholar
• Worley PF, Cole AJ, Murphy TH, Christy BA, Nakabeppu Y, Baraban JM. Synaptic regulation of Immediate-Early genes in brain. Cold Spring Harbour Symposia on Quantitative Biology 1990; 55: 213–23
   PubMedGoogle Scholar
• Armstrong RC, Montminy MR. Transsynaptic control of gene expression. Ann Rev Neurosci 1993; 16: 17–29
   PubMed Web of Science ®Google Scholar
• Young S. Science: Genes turn on to a puff of gas. New Scientist 1993; 17: 17
   Google Scholar
• Peunova N, Enikolopov G. Amplification of calcium- induced gene transcription by nitric oxide in neuronal cells. Nature, 1993; 364: 450–53
   PubMed Web of Science ®Google Scholar
• Dubner R, Bausbaum AI. Spinal dorsal horn plasticity following tissue or nerve injury. In: Wall PD, Melzack R (eds) The Textbook of Pain 3rd edn. Edinburgh: Churchill Livingstone 1994: 225–41
   Google Scholar
• Lipton SA, Kater SB. Neurotransmitter regulation of neuronal outgrowth, plasticity and survival. Trends Neurosci 1989; 12: 256–70
   PubMedGoogle Scholar
• Curran T, Abate C, Cohen DR, Macgreggor PF, Rauscher FJ, Sonnenberg JL, Connor JA, Morgan JI. Inducible proto-oncogene transcription factors: Third messengers in the brain? Cold Spring Harbour Symposia on Quantitative Biology 1990; 55: 225–34
   PubMedGoogle Scholar
• Kaplan M. Plasticity after brain lesions: contemporary concepts. Arch Phys Med Rehabilit 1988; 69: 984–91
   PubMed Web of Science ®Google Scholar
• Held JM. Recovery after damage. In: Cohen H (ed.). Neuroscience for Rehabilitation, Philadelphia: JB Lippincott Company 1993: 388 —405
   Google Scholar
• Stephenson R. A review of neuroplasticity: some implications for physiotherapy in the treatment of lesions of the brain. Physiotherapy 1993; 79: 699–704
   Google Scholar
• Malgaroli A, Tsien RW. Glutamate-induced long-term potentiation of the frequency of miniature synaptic currents in cultured hippocampal cells. Nature 1992; 357: 134–139
   PubMed Web of Science ®Google Scholar
• Thompson RF, Krupa DJ. Organisation of memory traces in the mammalian brain. Ann Rev Neurosci 1994; 17: 519–49
   PubMed Web of Science ®Google Scholar
• Morris RGM, Anderson E, Lynch GS, Baudry M. Selective impairment of learning and blockade of long term potentiation by an N-methyl-D-Aspartate receptor antagonist, AP5. Nature 1986; 319: 774–6
   PubMed Web of Science ®Google Scholar
• Young S, Concar D. These cells were made for learning. New Scientist, 1992, Supplement: Secret Life of the Brain, part 3
   Google Scholar
• Huerta PT, Scearce KA, Farris SM, Empson RM, Prusky GT. Preservation of spatial learning in fyn tyrosine kinase knockout mice. Neuroreport 1996; 7: 1685–9
   PubMed Web of Science ®Google Scholar
• Dougherty PM, Willis WD. Enhancement of spinothalamic neuron responses to chemical and mechanical stimuli following combined micro- iontophoretic application of N-Methyl-D-Aspartic acid and substance P. Pain 1991; 47: 85–93
   PubMed Web of Science ®Google Scholar
• Murray CW, Cowan A, Larson AA. Neurokinin and NMDA antagonists (but not Kainic acid antagonist) are antinociceptive in the mouse formalin model. Pain 1991; 44: 179–85
   PubMed Web of Science ®Google Scholar
• Fisher K, Coderre TJ. The contribution of metabotropic glutamate receptors (mGluRs) to formalin-induced nociception. Pain 1996; 68: 255–63
   PubMed Web of Science ®Google Scholar
• Olivar T, Laird JMA. Differential effects of N-Methyl- D-Asparate receptor blockade on nociceptive somatic and visceral reflexes. Pain 1999; 79: 67–73
   PubMed Web of Science ®Google Scholar
• Wall PD, Devor M, Inbal R, Scadding JW, Sconfeld D, Seltzer Z, Tomkiewicz MM. Autotomy following peripheral nerve lesions: experimental anaesthesia dolorosa. Pain 1979; 7: 103–13
   PubMed Web of Science ®Google Scholar
• Saade NE, Atweh SF, Jabbur SJ, Wall PD. Effects of lesions in the anteriolateral columns and dorsolateral funiculi on self-mutilation behaviour in rats. Pain 1990; 42: 313–21
   PubMed Web of Science ®Google Scholar
• Blumenkopf B, Lipman J. Studies in autotomy: its pathophysiology and usefulness as a model of chronic pain. Pain 1991; 45: 203–9
   PubMed Web of Science ®Google Scholar
• Devor M. Sensory basis of autotomy in rats. Pain 1991; 45: 109–10
   PubMed Web of Science ®Google Scholar
• Seltzer Z, Cohn S, Ginzberg R, Beilin B. Modulation of neuropathic pain behaviour in rats by spinal disinhibition and NMDA receptor blockade of injury discharge. Pain 1991; 45: 69–75
   PubMed Web of Science ®Google Scholar
• Malmberg AB, Yaksh TL. Effect of continuous intrathecal infusion of co-ionopeptides, N-type calcium-channel blockers, on behaviour and antinociception in the formalin and hot-plate tests in rats. Pain 1995; 60: 83–90
   PubMed Web of Science ®Google Scholar
• Woolf CJ, Thompson SWN. Slow potentials, receptive field plasticity and pain. In: Franzen O, Westman J (ed.). Information Processing in the Somatosensory System. Wenner-Gren International Symposium Series, Volume 57, London: Macmillan Press 1989: 427–37
   Google Scholar
• Ma QP, Woolf CJ. Noxious stimuli induce an N-Methyl- D-Aspartate-receptor-dependent hypersensitivity of the flexion withdrawal reflex to touch: implications for the treatment of mechanical allodynia. Pain 1995; 61: 383–90
   PubMed Web of Science ®Google Scholar
• Mitsikostas DD, del Rio MS, Waeber C, Moskowitz MA, Cutrer FM. The NMDA receptor antagonist MK 801 reduces capsaicin-induced c-fos expression within rat trigeminal nucleus caudalis. Pain 1998; 76: 239–48
   PubMed Web of Science ®Google Scholar
• Price DD, Mao J, Frenk H, Meyer DJ. The N-methyl- D-Aspartate receptor antagonist dextromethorphan selectively reduces temporal summation of second pain in man. Pain 1994; 59: 165–74
   PubMed Web of Science ®Google Scholar
• Felsby S, Nielsen J, Arendt-Nielsen L, Jensen TS. NMDA receptor blockade in chronic neuropathic pain: a comparison of ketamine and magnesium chloride. Pain 1996; 64: 285–91
   Google Scholar
• Warnke T, Stubhaug A, Jorum E. Ketamine, an NMDA receptor antagonist, supresses spatial and temporal properties of burn-induced secondary hyperalgesia in man: a double blind, cross-over comparison with morphine and placebo. Pain 1997; 72: 99–106
   PubMed Web of Science ®Google Scholar
• Pud D, Eisenberg E, Spitzer A, Adler R, Fried G, Yarnitsky D. The NMDA receptor antagonist amantadine reduces surgical neuropathic pain in cancer patients: a double blind, randomized, placebo controlled trial. Pain 1998; 75: 349–54
   PubMed Web of Science ®Google Scholar
• Eisenberg E, Vos BP, Strassman AM. The NMDA antagonist memantine blocks pain behaviour in a rat model of formalin-induced facial pain. Pain 1993; 54: 301–7
   PubMed Web of Science ®Google Scholar
• Nagy I, Woolf CJ. Lignocaine selectively reduces C fibre-evoked neuronal activity in rat spinal cord in vitro by decreasing N-methyl-D-aspartate and neurokinin receptor mediated post-synaptic depolarisations; implications for the development of novel centrally acting analgesics. Pain 1996; 64: 59–70
   PubMed Web of Science ®Google Scholar
• Canavero S, Bonicalzi V. The neurochemistry of central pain: evidence from clinical studies, hypothesis and therapeutic implications. Pain 1988; 74: 109–14
   Google Scholar
• Hinton GE. How neural networks learn from experience. Sci Am 1992, September, 105–9
   Google Scholar
• Haykin S. Neural networks, a comprehensive foundation. New York: Macmillan College Publishing, 1994: 1-89
   Google Scholar
• Roberts TDM. Understanding Balance. The Mechanics of Posture and Locomotion. London: Chapman and Hall 1995
   Google Scholar