PSY 1101 Lecture Notes - Lecture 28: Tinnitus, Nociceptor, Ronald Melzack

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: Rosalinde Klempan

Document Summary

Psy1101 other senses touching various parts of the skin reveals that some spots are sensitive to pressure, warmth, cold, pain. Our sense of touch is a mix of these 4 basic skin senses and other skin sensations are variations of pressure, warmth, cold and pain. A self-administered tickle produces less somatosensory cortex activation than from someone else. Example: if we hold onto 2 coils, 1 passes ice cold water and 1 passes warm water we perceive it as burning hot (warm + cold = hot) Women are more sensitive to pain than men (also their senses of hearing and smell are more sensitive) Our experience of pain reflects both bottom-up sensations and top-down cognition. Nociceptors trigger pain, these are sensory receptors in our skin, muscles and organs that detect hurtful temperatures, pressure or chemicals. Ronald melzack and patrick wall developed the gate-control theory. It"s the small nerve fibers in the spinal cord that conduct pain signals and.