There are 3 pre-programmed responses to incoming nociception in the spinal cord — flexor withdrawal (FRA),
vasoconstriction (to prevent excess bleeding at injury site), and upgoing pathways into the brain (spinoreticular,
spinotectal, spinothalamic, etc.). When they reach the brain they often result in an adaptive cortical cerebellar
loop habituating the spinal cord pre-programmed responses to nociception, and show up as what we call IRT
patterns. If you stimulate the right two incoming sensory pathways (e.g., touching the area of injury and distracting
the talus), as these sensory inputs meet in the brain, the habituated adaptative loop, that is often present after injury,
is returned to normal. (Kerry McCord, June 2026)