How hearing senses nanometers: auditory hair cells

Hearing relies on a mechanical system that detects nanoscale motion. This video explores how sound is detected and converted into a sequence of electric pulses called action potentials. You’ll see how sound information is encoded and a neural circuit for calculating sound location. Finally, you’ll explore the causes of hearing loss, a hearing test, and how our ears contain amplifiers that can emit sound. This work is copyright © 2023 by Kerry Kim. All rights reserved. No part of this video can be reproduced or transmitted in any form or by any means without my written permission. 0:00 Introduction 0:57 Sensing nanometers 2:27 Action potentials 5:09 Sound localization 7:26 Hearing loss 9:16 Amplification 11:54 Cells are mechanical 3D coordinate files for proteins: PDB ID: 6BNO (Actin) Gurel, P.S., Kim, L.Y., Ruijgrok, P.V., Omabegho, T., Bryant, Z., Alushin, G.M. (2017) Cryo-EM structures reveal specialization at the myosin VI-actin interface and a mechanism of force sensit