PSYC 211 Lecture Notes - Lecture 10: Calcium Carbonate, Brail, Noxious Stimulus
8 Dec 2017
School
Department
Course
Professor
Document Summary
Hearing is the detection of changes air compression over time. Anatomy: compression and rarefication of air first passes through our ear, sound is funneled through the pinna (external ear) - can influence the sound wave. In the cochlea, the neurons transduce the vibrations of the sound wave into membrane depolarization, and transmit signal into the brain. If my move synchronously they won"t activate anything. If one moves more than the other, it"ll create a lot of motion in the fluid of the given area: motion activates ion channels on the cilia. From the ear to the primary auditory cortex. Goes from the cochlea (where the hair cells are located), to the cochlear nerve - leaves the ear and enters the hindbrain (medulla oblongata) Each nuclei in the cochlear system has specific functions. Sensory transduction happens in the cochlea, then move to cochlear nerve, and the first synapse is in the cochlear nucleus.
