01:377:310 Lecture Notes - Lecture 7: Motor Control, Proprioception, Dermis
17 Oct 2018
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Document Summary
Sensory info is essential for all theories of motor control and learning. Provides feedback about the movement in progress. Provides post-movement info about action goal achievement. Focus of current chapter is three types of sensory info. Tactile sensory receptors that are part of somatic sensory system. Describe some ways we use touch to help us achieve action goals. Mechanoreceptors located in the dermis layer of skin. Provide cns with temperature, pain and movement. Roles of tactile info in motor control. Compare performance of task involving fingers before and after anesthetizing fingers. Proprioception : refers to our sensation and perception of lib, trunk, and head position and movement. We will use the term synonymously with the term kinesthesis . Cns receives proprioceptive info from sensory neural pathways that begin in specialized sensory neurons known as proprioceptors. Located in muscles, tendons, ligaments and joints. Joint receptors: muscle spindles, in most skeletal muscles in a capsule of specialized muscle fibers and sensory neurons.
