This mechanism involves the brain regions above the spinal cord, including the cortex, thalamus, and descending pain modulation pathways
When mechanical stimulation is applied, it can activate descending inhibitory pathways from the brain to the spinal cord
These pathways release neurotransmitters such as serotonin, norepinephrine, and endogenous opioids (like endorphins), which inhibit the transmission of pain signals from the periphery to the brain
Additionally, the activation of higher brain centres can modulate the perception of pain, leading to analgesia