Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Hearing01:31

Hearing

57.2K
When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
57.2K
The Evidence for Evolution02:55

The Evidence for Evolution

48.0K
Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
48.0K
Convergent Evolution01:54

Convergent Evolution

32.8K
Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
32.8K
Balancing Redox Equations02:58

Balancing Redox Equations

61.9K
Electrochemistry is the science involved in the interconversion of electrical and chemical reactions. Such reactions are called reduction-oxidation, or redox reactions. These important reactions are defined by changes in oxidation states for one or more reactant elements and include a subset of reactions involving the transfer of electrons between reactant species. Electrochemistry as a field has evolved to yield sufficient insights on the fundamental principles of redox chemistry and multiple...
61.9K
Eukaryotic Evolution01:24

Eukaryotic Evolution

40.9K
The endosymbiont theory is the most widely accepted theory of eukaryotic evolution; however, its progression is still somewhat debated. According to the nucleus-first hypothesis, the ancestral prokaryote first evolved a membrane to enclose DNA and form the nucleus. Conversely, the mitochondria-first hypothesis suggests that the nucleus was formed after endosymbiosis of mitochondria.
Contrary to the endosymbiont theory, the eukaryote-first hypothesis proposes that the simpler prokaryotic and...
40.9K
Synteny and Evolution02:31

Synteny and Evolution

3.8K
John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
3.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Deep Conservation and Unexpected Evolutionary History of Neighboring lncRNAs MALAT1 and NEAT1.

Journal of molecular evolution·2024
Same author

CX3CR1 mutation alters synaptic and astrocytic protein expression, topographic gradients, and response latencies in the auditory brainstem.

The Journal of comparative neurology·2021
Same author

Auditory Brainstem Deficits from Early Treatment with a CSF1R Inhibitor Largely Recover with Microglial Repopulation.

eNeuro·2021
See all related articles

Related Experiment Video

Updated: Jan 29, 2026

Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation
03:49

Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation

Published on: October 11, 2024

1.2K

The evolution of hearing and balance.

Forrest P Weghorst1, Karina S Cramer2

  • 1Department of Neurobiology and Behavior, University of California, Irvine, Irvine, United States.

Elife
|February 9, 2019
PubMed
Summary

Researchers used new genetic tools to compare the development of auditory and vestibular nuclei in the brainstems of embryonic chicks and mice. This comparison sheds light on the evolution of sensory systems.

Keywords:
auditorychickendevelopmentdevelopmental biologyevolutionfate mappinghindbrainmouseneurosciencevestibular

More Related Videos

Author Spotlight: Developing Low-Tech Balance Assessment Methods for Broad-Spectrum Healthcare Applications
06:28

Author Spotlight: Developing Low-Tech Balance Assessment Methods for Broad-Spectrum Healthcare Applications

Published on: September 1, 2023

6.2K
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
06:04

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages

Published on: March 24, 2023

842

Related Experiment Videos

Last Updated: Jan 29, 2026

Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation
03:49

Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation

Published on: October 11, 2024

1.2K
Author Spotlight: Developing Low-Tech Balance Assessment Methods for Broad-Spectrum Healthcare Applications
06:28

Author Spotlight: Developing Low-Tech Balance Assessment Methods for Broad-Spectrum Healthcare Applications

Published on: September 1, 2023

6.2K
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
06:04

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages

Published on: March 24, 2023

842

Area of Science:

  • Neuroscience
  • Developmental Biology
  • Comparative Anatomy

Background:

  • The brainstem auditory and vestibular nuclei are crucial for processing sound and balance.
  • Understanding their development is key to understanding sensory system evolution.
  • Previous studies have focused on individual species, limiting comparative insights.

Purpose of the Study:

  • To compare the developmental trajectories of brainstem auditory and vestibular nuclei in embryonic chicks and mice.
  • To identify conserved and divergent mechanisms in the development of these sensory systems.
  • To leverage new genetic tools for high-resolution developmental comparisons.

Main Methods:

  • Utilized novel genetic tools for comparative analysis.
  • Examined embryonic development in Gallus gallus (chick) and Mus musculus (mouse) models.
  • Focused on the differentiation and organization of auditory and vestibular nuclei within the brainstem.

Main Results:

  • Identified distinct but related patterns of development for auditory and vestibular nuclei in chicks and mice.
  • Highlighted conserved gene expression and cellular migration pathways.
  • Revealed species-specific adaptations in nuclear formation.

Conclusions:

  • Comparative analysis using advanced genetic tools provides novel insights into sensory system evolution.
  • Developmental pathways for auditory and vestibular systems show both conservation and divergence between avian and mammalian models.
  • This research lays the groundwork for future studies on the genetic basis of sensory processing.