Pain Perception Research Paper

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Pain perception can be felt by a noxious stimulus or a psychological trigger. There are different types of pain, nociceptive pain, which is caused by physical injury and psychogenic pain, something that is caused emotionally. The noxious stimulus sends a signal to the brain and spinal cord. The signal is known as an action potential. Pain can be felt in many different ways, for example, you may feel very little pain than expected from a result of a physical injury, or you may feel pain even when there is no physical injury this is known as psychogenic pain. Pain is processed in the limbic system. The limbic system is a bundle of networks and nerves located on either side of the thalamus. It plays a huge role in pain perception as it adjusts …show more content…

This is why distracting patients can help reduce the amount of pain that they may be feeling whereas paying close attention to pain can intensify the sensation. If the extent of the physical injury is severe then patients will be given medication such as a type of opioid (used to relief pain). However sometimes these drugs do not relieve the pain, for example, a burn victim will suffer from pain regardless of the treatment they may receive. This is another example of pain being perceived more than what is …show more content…

A great example of this was given in the Open University study resources, section 3.4.3 That soldiers in a battlefield suffering from a severe injury may not realise or perceive their pain until they are safely off the battlefield.
When pain is perceived in a different location to the site of injury this is called referred pain. A good example of referred pain is Angina. Angina is a chest pain sensation of either pressure or squeezing. Which can be caused by ischemia of the heart muscles (restriction in blood supply to body tissues). Angina results in referred pain in the arm, back, neck, jaw and shoulder. This is pain that is being felt in a different place to the actual source of injury.
Brain imaging if frequently used to measure physical and psychogenic pain. Machines such as fMRIs, EEG, CTs and PET scans are used to measure brain activity. An fMRI works by detecting the changes in blood oxygenation and blood flow. When a section of the brain is more active, the oxygen and blood flow will increase in that

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