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The Gate-control Theory
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Pain Scale
The Gate-control Theory
Example
-Shut finger in the door
-pain signal go to spinal cord
-depending if the signal goes through small/larger fibers the gate would open or remain closed
- how many pain messages (intensity of the pain) get to the brain
- sympathetic nervous system
- Chemicals reduced to stop pain are released to the brain and spinal cord
What is the Gate-Control Theory?
Opening of the Gate
- when body tissue is damaged pain receptors travel to the spinal cord where a "neural gate" is.
- controls the transmission of pain impulses to the brain
- Patrick Wall and Ronald Melzack in 1965
Work Cited
- smaller fibers open the gate
- smaller fibers carry nociceptive information
- more pain when the gate is open
http://faculty.washington.edu/chudler/pain.
Understand Psychology
http://neuroscience.uth.tmc.edu/s2/chapter08.html
Closed Gate
- Larger fibers close the gate
- Larger fibers carry non-nociceptive information
- Not as much pain as to when the gate is open