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Chapter 10

PSY 383 Chapter Notes - Chapter 10: Opioid Peptide, Nociceptor, Cerebral Cortex


Department
Psychology Main
Course Code
PSY 383
Professor
O' Connor
Chapter
10

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Danny Holcomb
Professor O’Connor
Health Psych
31 October 2016
Chapter 10 Notes: The Management of Pain and Discomfort:
The elusive nature of pain
Significance of Pain:
Provides low-level feedback about the functioning of our bodily systems
Can lead a person to seek treatment
Inadequate relief from pain is the most common reason for requests for euthanasia
or assisted suicide
Elusive nature of Pain:
Degree to which pain is felt depends on:
o How it is interpreted
o Context in which it is experienced
o Cultural component members from some cultures react more intensely to
it than those from other cultures
o Gender differences women show greater sensitivity to pain
Measuring Pain:
Verbal reports large, informal vocabulary that people use for describing pain
Pain questionnaires ask about the nature of pain and its intensity
Addressing the psychosocial components of pain how much:
o Fear it causes
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o It has taken over a person’s life
Methodological tools can be used to gain insights about pain
Pain behaviors: arise from chronic pain
o Assess how pain has disrupted a patient’s life
o Help define the characteristics of different pain syndromes
Physiology of Pain:
Protective mechanism to bring tissue damage into conscious awareness
Accompanied by motivational and behavioral responses
Negative emotions exacerbate pain and vice versa
Kinds of Pain perception:
Mechanical nociception
o Results from mechanical damage to the tissues of the body
Nociception: pain perception
o Thermal damage
Experience of pain due to temperature exposure
o Polymodal nociception:
Pain that triggers chemical reactions from tissue damage
Gate control Theory of Pain:
Developed scientific understanding of pain
Nociceptors sense injury and release chemical messengers to the spinal cord
A-delta fibers small, myelinated fibers
o Respond to mechanical or thermal pain
o Transmit sharp, brief pains rapidly
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C-fibers: unmyelinated nerve fibers
o Involved in polymodal pain
o Transmit dull, aching pain
Periductal gray located in the midbrain
o Results in pain relief when stimulated
o Processes in the cerebral cortex are involved in cognitive judgments about
pain
The Experience of Pain:
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