PSY100H1 Study Guide - Bony Labyrinth, Angular Velocity, Angular Acceleration
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PSY100H1 Full Course Notes
Verified Note
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Document Summary
Chapter 15 spatial orientation and vestibular system. Vestibular system: set of 5 organs 3 semicircular canals and 2 otolith organs located in each inner ear that sense head motion and head orientation with respect to gravity. Spatial orientation: sense comprised of 3 interacting sensory modalities sense of linear motion, angular motion and tilt. Vestibular sixth sense provides fundamental contributions that are often overlooked. Fundamental nature of vestibular system is emphasized by fact that vestibular organs appeared very early in evolutionary history and have remained relatively unchanged. Explanation may be that it wasn"t until 19th century that scientists understood that vestibular system is specialized set of organs. Another explanation may be inconspicuous nature of vestibular sense. Sense of spatial orientation is based on 3 sensory modalities senses of linear motion, angular motion and tilt. Sensing linear motion, angular motion and tilt involves different receptors and/or stimulation energy modalities.
