Psychology 2036A/B Lecture Notes - Lecture 9: Opioid, Periaqueductal Gray, Power Walking

• School: Western University
• Department: Psychology
• Course: Psychology 2036A/B
• Professor: Doug Hazelwood

Document Summary

Prologue: pain is a serious health problem in society, estimated that cost associated with pain is an annual 1 billion $ in canada (lost productivity time that cant go to work, medication, pain comes in many different forms. Phantom limb pain (pain in an amputated limb: pain stems from an area that had previously been wounded, but the pain persists long after original wound is heeled. Distraction) athletes sometimes only experience pain after game: see psychological techniques for the management of pain (p. 293 -300, differences in meaning of pain something good) pain, 2 other psychological factors: Summary: pain is puzzling because there is often no direct relation between physical injury and the experience of pain. If gate is open, substantia p activates transmission cells (send pain messages to brain) If closed, transmission cells are inhibited: what controls the gate, activity in pain fibers (a-delta and c, opens gate, activity in a-beta fibers, closes the gate, ex.