The Gate Is Controlled From Above
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
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The spinal pain gate is influenced by signals descending from the brain as well as by sensory input arriving from the body.
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Expecting a painful injection increases the pain reported from an identical needle.
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This is why attention, expectation, and mood change pain rather than merely changing how it is described.
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