Kinesiology 1080A/B Lecture Notes - Lecture 9: Endolith, Saccule, Balance Disorder

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 1080A/B
• Professor: Matthew Heath

Document Summary

Closed loop model of motor control: closed loop motor control. System goal: could be to reach out and grab mug. Reference mechanism: recognizing the action you want to do and how are you going to achieve it. Executive level: neuro-motor commands/instructions that get sent to the effector level. Effector level: our limb, or body part that we need to use to be successful in our goal. In this goal, neuro-motor instructions are sent to the arm/hand/fingers. Environment: output, can physically see yourself doing your goal. From the environment we can make a comparison to the original instructions. Can use feedback through proprioception (muscle spindles), through vestibular and visual system. Efferent: away from brain, sending instructions from reference mechanism to environment. Afferent: going towards brain, providing feedback to reference mechanism. Visual stimuli that information is sent to the retina. From the retina, it goes to the lgn (lateral geniculate nucleus) Lgn is in the thalamus, so it is a subcortical structure.