According to the gate control theory, what effect can certain types of massage have on pain signals reaching the brain?

• A. Massage has no effect on pain signals.
• B. Certain types of massage may close the gate to pain signals reaching the brain.
• C. Gate control theory is not applicable to touch therapies.
• D. Massage increases pain signaling by stimulating nociceptors.

Answer: (B)

Massage can activate non-painful input that competes with pain signals at the spinal level. When you apply touch, mechanoreceptors fire and send signals through fast A-beta fibers. These signals help activate inhibitory processes in the dorsal horn, reducing the transmission of pain signals carried by nociceptors (A-delta and C fibers) up to the brain. With this inhibitory input, the “gate” to pain in the spinal cord is effectively narrowed, so fewer pain signals reach the brain and the perception of pain is diminished. This is why certain massage techniques can lessen pain even when the underlying tissue injury remains. The key idea is that touch input can modulate neural pathways to reduce pain perception.