<P> The gate control theory of pain asserts that non-painful input closes the "gates" to painful input, which prevents pain sensation from traveling to the central nervous system . Therefore, stimulation by non-noxious input is able to suppress pain . </P> <P> First proposed in 1965 by Ronald Melzack and Patrick Wall, the theory offers a physiological explanation for the previously observed effect of psychology on pain perception . Combining early concepts derived from the specificity theory and the peripheral pattern theory, the gate control theory is considered to be one of the most influential theories of pain because it provided a neural basis which reconciled the specificity and pattern theories and ultimately revolutionized pain research . </P>

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