PSYC 2301 Lecture Notes - Lecture 8: Dorsal Root Ganglion, Rheumatoid Arthritis, Posterior Grey Column

• School: Carleton University
• Department: Psychology
• Course: PSYC 2301
• Professor: Tarry Ahuja

Document Summary

Chronic benign: 6 months +, intractable to treatment (low back pain) Recurrent acute pain: series of intermittent episodes (migraine, tmj) Chronic progressive: 6 months +, increasing severity (rheumatoid arthritis) Rates are even high in those over 65, and women. Costs in health care utilization and lost productivity are approximately billion annually. Over billion spent annually on otc meds. Personal report of pain can be very subjective. There is no gold standard in measuring pain outcomes. Verbal reports: patient uses their experience and vocabulary to describe pain. Pain behaviour: observable behaviours that arise from paint. A-delta fibre: transmit first pain and sharp pain rapidly. A-beta fibres: transmit information about vibration and position. Nociception transmission: bidirectional axons synapse in dorsal horn of the spinal cord, signal continues to brain where its processed. Traditional model suggested pain resulted from transmission of pain signals to the brain. Degree of pain was dictated by tissue damage.