Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

From Humming Fish to Puccini: Vocal Communication Evolved with Ancient Species

18.07.2008
It’s a long way from the dull hums of the amorous midshipman fish to the strains of a Puccini aria – or, alas, even to the simplest Celine Dion melody. But the neural circuitry that led to the human love song – not to mention birdsongs, frog thrums and mating calls of all manner of vertebrates – was likely laid down hundreds of millions of years ago with the hums and grunts of the homely piscine.

By mapping the developing brain cells in newly hatched midshipman fish larvae and comparing them to other species, Andrew H. Bass, Cornell professor of neurobiology and behavior, and colleagues Edwin Gilland of Howard University and Robert Baker of New York University found that the neural network behind sound production in vertebrates can be traced back through evolutionary time to an era long before the first animals ventured onto dry land.

The research is published in the July 18 issue of the journal Science.

Bass used fluorescent dyes to identify distinct groups of neurons in the brains of the larvae of midshipman fish, a species known for the loud humming sounds adult males generate with their swim bladders to attract females to their nests.

With laser-scanning confocal microscopy, the research team observed clusters of cells in the larvae’s developing hindbrain as they formed connections and grew into the networks that control vocalization in mature fish.

“Confocal microscopy allows you to look at different populations of neurons at the same time – to really be precise about their locations relative to each other,” Bass said. He found that the neurons in a compartment of the hindbrain known as rhombomere 8, which are thought to control pattern generation in vocalizing vertebrates, gives rise to the circuitry of the vocal motor nucleus – the system behind the fishes’ hums.

Comparing the system to the neural circuitry behind vocalizations of amphibians, birds, reptiles and mammals, including primates, Bass found that while the networks vary in complexity, their fundamental attributes are conserved.

The finding puts human speech – and social communications of all vertebrates – in evolutionary context, Bass said.

The research also provides a framework for neuroscientists and evolutionary biologists studying social behavior in a variety of species, he said – and sends a message to scientists and non-scientists “about the importance of this group of animals to understanding behavior; to understanding the nervous system; and to understanding just how important social communication is – among them, as it is among ourselves.”

Blaine Friedlander | Newswise Science News
Further information:
http://www.cornell.edu

Further reports about: Puccini circuitry hums midshipman neural neurons species vertebrates

More articles from Life Sciences:

nachricht Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery
20.01.2017 | GSI Helmholtzzentrum für Schwerionenforschung GmbH

nachricht Seeking structure with metagenome sequences
20.01.2017 | DOE/Joint Genome Institute

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>