PSYC3318 Lecture Notes - Lecture 11: Golgi Tendon Organ, Muscle Spindle, Nociception
Document Summary
Threshold smaller on finger tips and lips and larger on arms legs and torso. Tactile perception- perceiving mechanical stimulation of the skin. New research suggests that there are specific receptors for pleasant touch. These receptors initially may have developed to support grooming behaviour. What make pleasant touch pleasant- brain pathway for tactile information. There is inconclusive evidence that the mechanism which mechanoreceptosr transduce mechical force is analogous to the mechanism by which hair cells in the cochlea transduce movement of their stereocilia into neural signals sent through auditory nerve fibers. Proprioception- the unconscious perception of movement and spatial orientation. Three sensory organs provide information related to how the body and its parts are position. Proprioceptive information- muscle spindles, golgi tendon organs, joint receptors. Muscle spindles- found throughout the body of a muscle and provide information about changes in muscle length. Golgi tendon- organs are found in tendons that attach muscle to bone and provide information about changes in muscle force.
