BIOL1900 Lecture Notes - Lecture 21: Semicircular Canals, Motor Goal, Otolith
Document Summary
Lecture 21 sensory contributions to motor control and information processing. Sensation and normal movement: we move to interact with the world, we need to sense our environment to move effectively, use sensory systems to get information about our environment, sensori-motor integration. Perception vs. sensori-motor integration: conscious perception involves the awareness of a stimulus, only a small percentage of sensory signals picked up by the body are consciously perceived. Perception: accurate perception of the world requires processing and experience. It is not necessary for a signal to be fully perceived for it to contribute to the control of movement: perception is not always accurate, can be creative/predictive. Sources of sensory information - vision: crucial sensor for external events, also provides important information about our own movements. Sources of sensory information - vestibular apparatus: provides information about head movements and head tilt, semicircular canals - respond to angular acceleration in three planes, otolith organs - respond to linear acceleration.
