Navigation Links
From humming fish to Puccini: Vocal communication evolved with ancient species
Date:7/17/2008

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."


'/>"/>

Contact: Blaine Friedlander
bpf2@cornell.edu
607-254-8093
Cornell University Communications
Source:Eurekalert

Related biology news :

1. A private bandwidth for communication in bats: Evidence from insular horseshoe bats
2. Communication Intelligence Corporation Reports Second Quarter 2007 Financial Results
3. Springer book wins Quality of Communication Award
4. 2 French scientists win European award for communication
5. Scripps research team blocks bacterial communication system to prevent deadly staph infections
6. Communication Intelligence Corporation Reports Fourth Quarter and Fiscal 2007 Results
7. Turning on cell-cell communication wipes out staph biofilms
8. MXI Security and Communication Intelligence Corporation Team up to Deliver the First Green Portable Security Solution for Financial Institutions
9. Communication Intelligence Corporation Closes $3.6 Million Financing
10. Genome communication
11. New molecular clock from LLNL and CDC indicates smallpox evolved earlier than believed
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/26/2016)... DUBLIN , April 27, 2016 ... of the  "Global Multi-modal Biometrics Market 2016-2020"  report ... ) , The analysts forecast ... a CAGR of 15.49% during the period 2016-2020.  ... a number of sectors such as the healthcare, ...
(Date:4/15/2016)... -- A new partnership announced today will help life ... a fraction of the time it takes today, ... insurance policies to consumers without requiring inconvenient and ... rapid testing (A1C, Cotinine and HIV) and higi,s ... pulse, BMI, and activity data) available at local ...
(Date:4/14/2016)... , April 14, 2016 ... and Malware Detection, today announced the appointment of ... the new role. Goldwerger,s leadership appointment comes ... the heels of the deployment of its platform at ... behavioral biometric technology, which discerns unique cognitive and physiological ...
Breaking Biology News(10 mins):
(Date:5/25/2016)... San Diego, Calif. (PRWEB) , ... May 25, 2016 , ... ... San Diego area and has consistently been rated one of its top attractions. ... over the globe to participate in a unique and intimate team-building experience. , Each ...
(Date:5/25/2016)... ... May 25, 2016 , ... The ... fracture-specific plating options designed to address fractures of the distal tibia and fibula. ... The Acumed Ankle Plating System 3 is composed of seven plate families that ...
(Date:5/25/2016)... ... May 25, 2016 , ... The ... by the Office of the National Coordinator for Health IT (ONC) outlining a ... clinically relevant data were available when and where it was needed. The organization ...
(Date:5/25/2016)... ... 2016 , ... WEDI, the nation’s leading authority on the use of health ... has been named by the WEDI Board of Directors as WEDI’s president and CEO. ... with more than 35 years of experience in healthcare, association management and organizational leadership, ...
Breaking Biology Technology: