Because touch is usually most impaired distally in central pain, this website refers to distal increase. Proximal increase is a gradient in opposite direction from distal increase. The CP hyperpathic response is greatest where dysesthesia and loss of touch sensation are the least. Barring a complete lesion, touch tends to be spared going proximally on the body. Consequently, this website refers to proximal increase as it pertains to hyperpathia, which follows touch retention.
Adequate stimulus refers to the manner in which a given component is most effectively stimulated.
Relieved by deep pressure refers to those aspects of central pain which are benefited by deep pressure or massage applied for a few minutes. Pain from prolonged deep pressure is allodynic and exaggerated. Since the skin is so sensitive, only deep structures experience this benefit and the pressure must be applied without friction to the skin. Allodynia refers to pain from non-noxious stimuli, whether or not experienced in the area stimulated. Brief movement or the texture of clothing would be examples of nonpainful stimuli which causes burning pain.