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Related Concept Videos

Hair Cells01:22

Hair Cells

Hair cells are the sensory receptors of the auditory system—they transduce mechanical sound waves into electrical energy that the nervous system can understand. Hair cells are located in the organ of Corti within the cochlea of the inner ear, between the basilar and tectorial membranes. The actual sensory receptors are called inner hair cells. The outer hair cells serve other functions, such as sound amplification in the cochlea, and are not discussed in detail here.
Unrenewable Cells00:50

Unrenewable Cells

In humans, the photoreceptor cells of the eye and sensory hair cells of the ear lack stem cells. These cells are thus unrenewable and cannot be replaced when they are damaged or destroyed.
Photoreceptors
The retina is composed of several layers and contains specialized cells called photoreceptors. The photoreceptors (rods and cones) change their membrane potential when stimulated by light energy. There are two types of photoreceptors—rods and cones—which differ in the shape of their outer...
Resting Potential Decay01:15

Resting Potential Decay

The resting membrane potential of a neuron (-70mV) is sustained due to the selective ion permeability of the membrane. At the resting potential, the membrane is slightly permeable to ions like sodium (Na+) and chloride (Cl−) and highly permeable to potassium ions (K+). Differences in the ions' concentration inside the cell compared to the outside are maintained by membrane transport proteins like channels and pumps.
At rest, the K+ is the main ion that moves across the membrane through...
The Cochlea01:13

The Cochlea

The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.

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Related Experiment Video

Updated: May 25, 2026

In Vitro Wedge Slice Preparation for Mimicking In Vivo Neuronal Circuit Connectivity
10:31

In Vitro Wedge Slice Preparation for Mimicking In Vivo Neuronal Circuit Connectivity

Published on: August 18, 2020

Cell's intrinsic biophysical properties play a role in the systematic decrease in time-locking ability of central

S Yang1, S Yang, C L Cox

  • 1Department of Molecular and Integrative Physiology and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA. syang@gallo.ucsf.edu

Neuroscience
|February 15, 2012
PubMed
Summary
This summary is machine-generated.

Central auditory neurons

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Related Experiment Videos

Last Updated: May 25, 2026

In Vitro Wedge Slice Preparation for Mimicking In Vivo Neuronal Circuit Connectivity
10:31

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08:56

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Published on: September 3, 2016

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09:51

Cochlear Surface Preparation in the Adult Mouse

Published on: November 6, 2019

Area of Science:

  • Neuroscience
  • Auditory System Research
  • Cellular Electrophysiology

Background:

  • Auditory neurons' time-locking ability decreases along the central auditory pathway.
  • This decline is linked to synaptic transmission fidelity and inhibition.
  • The role of intrinsic neuronal biophysical properties remains unclear.

Purpose of the Study:

  • To investigate the contribution of intrinsic biophysical properties to auditory neurons' time-locking ability.
  • To compare thalamic neurons with lower auditory brainstem neurons in frogs.
  • To understand changes in temporal coding along the ascending auditory pathway.

Main Methods:

  • Whole-cell patch clamp recordings from frog auditory thalamus.
  • Intracellular application of depolarizing pulse trains to assess time-locking.
  • Comparison of biophysical properties and firing patterns between different auditory nuclei.

Main Results:

  • Frog thalamic neurons are homogeneous with poor time-locking ability and lack typical mammalian low-threshold Ca2+ currents.
  • Lower auditory brainstem neurons show heterogeneous phenotypes with varying time-locking abilities.
  • A progressive increase in sustained-regular firing neurons correlates with decreased time-locking ability along the pathway.

Conclusions:

  • Intrinsic biophysical properties significantly influence neuronal time-locking ability.
  • The observed changes in neuronal properties contribute to altered temporal coding in the auditory pathway.
  • Findings suggest biophysical characteristics are crucial for understanding auditory processing changes.