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Related Concept Videos

Pain01:20

Pain

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Pain serves as a critical warning signal that alerts the body to potential or actual harm. When mechanical pressure on the skin is intense, such as from a sharp pinch, the sensation transitions from touch to pain. Similarly, extreme temperatures, like a hot pot handle, convert the sensation of heat into pain. Pain can also result from overstimulation of other senses, such as blinding light, loud noise, or the intense heat from habañero peppers. This ability to sense pain is essential for...
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Nociception01:44

Nociception

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Nociception—the ability to feel pain—is essential for an organism’s survival and overall well-being. Noxious stimuli such as piercing pain from a sharp object, heat from an open flame, or contact with corrosive chemicals are first detected by sensory receptors, called nociceptors, located on nerve endings. Nociceptors express ion channels that convert noxious stimuli into electrical signals. When these signals reach the brain via sensory neurons, they are perceived as pain.
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Factors Affecting Perception01:25

Factors Affecting Perception

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Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
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Analgesia and Pain Management01:25

Analgesia and Pain Management

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Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
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Sensory Versus Affective Pain Descriptors Predicting Functional Versus Psychosocial Disability.

Ephrem Fernandez1, Wenbo Wu2, Eric C Shattuck3

  • 1Psychology Department, University of Texas at San Antonio, San Antonio, Texas.

The Journal of Pain
|April 24, 2022
PubMed
Summary
This summary is machine-generated.

The Pain Descriptor System (PDS) helps assess pain. Sensory pain descriptors predict physical disability, while affective descriptors predict psychosocial impairment in chronic pain patients.

Keywords:
Functional impairmentGroup lassoPain descriptor systemPain disability questionnairePain words

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Area of Science:

  • Psychology
  • Rehabilitation Medicine
  • Pain Management

Background:

  • The McGill Pain Questionnaire includes the Pain Descriptor System (PDS) for assessing pain intensity.
  • The PDS evaluates sensory, affective, and overall pain components.
  • Understanding the relationship between pain components and disability is crucial for effective treatment.

Purpose of the Study:

  • To investigate whether sensory versus affective pain components are selectively associated with different aspects of disability.
  • To examine the predictive validity of the PDS in relation to functional status and psychosocial impairment.

Main Methods:

  • Utilized data from 629 chronic pain patients.
  • Patients completed the Pain Descriptor System (PDS) and the Pain Disability Questionnaire (PDQ).
  • Applied three regression models, including Group Lasso, to analyze the relationship between PDS scores and PDQ measures.

Main Results:

  • PDS sensory scores significantly predicted PDQ functional status (13% variance).
  • PDS affective scores significantly predicted PDQ psychosocial impairment (17% variance).
  • PDS total scores significantly predicted PDQ total scores (24% variance).

Conclusions:

  • The findings support the predictive validity of pain descriptors in assessing disability.
  • Sensory pain descriptors are linked to physical impairment.
  • Affective pain descriptors are associated with psychosocial difficulties.