Gate control theory

Mechanism and function

It helps explain why touch can sometimes reduce pain. The gate is a metaphor for neural circuits, not an anatomical door opening or closing in a disc.

Assessment and clinical implications

This model does not explain all chronic pain by itself. It is not proof of a device’s effectiveness or sufficient justification for selecting treatment.

Points to consider

Pain is a personal experience influenced by biological and contextual processes. Modulation can increase or reduce a response without representing a new injury. Describing it neither questions the reality of pain nor establishes an individual diagnosis.

Role of TAGMED care

At TAGMED, assessment aims to understand symptoms, history and functional limitations. Manual care and osteopathy, motorized spinal decompression, laser and shockwave have different indications. The term described in this entry is not enough to select any of these modalities. Their relevance, limitations and possible contraindications should be discussed in relation to diagnosis and individual goals.

Related concepts and distinctions

These concepts belong to the same field, but are not synonyms.

• Descending pain modulation — Influence of brain and brainstem circuits on spinal processing of nociceptive information, which can inhibit or facilitate it.
• Temporal summation of pain — Increase in perceived pain during repeated similar noxious stimuli, used to investigate facilitation of pain processing.
• Nociceptive transduction — Conversion of a potentially harmful stimulus into electrical activity at nociceptive sensory endings.

Medical references

1. NCBI Bookshelf — Neuroscience. The Physiological Basis of Pain Modulation.
2. National Institutes of Health. Pain.
3. International Association for the Study of Pain. Neurobiological mechanisms contributing to back pain.

References document the topic; their inclusion does not imply endorsement of TAGMED services by those organizations.