Navigation Links
Humans Can Develop Bat-Like Echolocation
Date:7/8/2009

Acoustic signaling using tongue clicks could aid the blind, study shows

WEDNESDAY, July 8 (HealthDay News) -- Humans can develop echolocation, a system of acoustic signals used by dolphins and bats to "see" their surroundings, new research has found.

Spanish researchers say that producing certain kinds of tongue clicks helps people to identify objects around them without having to use their eyes, a skill that would be benefit the blind. This ability could also help firefighters, rescue teams or even people lost in fog, according to Juan Antonio Martinez, a researcher at the University of Alcala de Henares in Spain, said in a news release.

"In certain circumstances, we humans could rival bats in our echolocation or biosonar capacity," he claimed.

In their first published study, the researchers analyzed the properties of various sounds and identified what they believe is the most effective sound for human echolocation.

"The almost ideal sound is the 'palate click,' a click made by placing the tip of the tongue on the palate, just behind the teeth, and moving it quickly backwards, although it is often done downwards, which is wrong," Martinez said.

Palate clicks "are very similar to the sounds made by dolphins, although on a different scale, as these animals have specially adapted organs and can produce 200 clicks per second, while we can only produce three or four," he explained.

The study appears in the current issue of the journal Acta Acustica united with Acustica.

A method to teach humans how to emit, receive and interpret echolocation sounds is being developed. The first step is for a person to learn how to make and identify his or her own sounds, which are different for each individual. The next step is to learn how to use the sounds to distinguish between objects according to their geometrical properties.

No special physical skills are needed to develop echolocation, said Martinez, who noted that some blind people have taught themselves the ability through trial-and-error.

"Two hours per day for a couple of weeks are enough to distinguish whether you have an object in front of you, and within another two weeks you can tell the difference between trees and a pavement," he said.

More information

The University of Rhode Island has more about marine mammal echolocation.



-- Robert Preidt



SOURCE: Plataforma SINC, news release, June 30, 2009


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. New Scientific Evidence Suggests Humans Resistant to Phthalate Effect on Lab Rodents
2. Humans Werent Always So Special, Expert Says
3. K-State Veterinarian Says Although Exotic Pets Can Be Great Companions, There Are Health Factors That Can Affect Both the Animal and Humans
4. Zysolin(TM) Pre-clinical Data Supports Once-a-day Dosing in Humans
5. Evolution May Have Made Humans More Cancer Prone
6. Brain Scans Show How Humans Hear Emotion
7. New oncogene gives valuable insight into hepatocellular tumors in humans
8. Yerkes researchers use eye tracking to detect mild dementia in humans
9. Research Finds Popular Household Pets Transmit Dangerous Parasites to Humans
10. UCI behind worlds first embryonic stem cell study in humans
11. Domestic Animals Owe Varied Coats to Humans
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Humans Can Develop Bat-Like Echolocation
(Date:2/27/2017)... PORT RICHEY, Fla. (PRWEB) , ... February 27, 2017 , ... ... use disorder, but concern for women who become dependent on opioid painkillers has fallen ... among female patients, compared to a 237% increase in fatal overdoses in male populations.(1) ...
(Date:2/27/2017)... ... ... Orange County dentist, Dr. A. Rassouli, comments on the new ... bacteria in plaque infect the gums and other tissues supporting the teeth. Treatment typically ... SRP, and can include surgical therapies if the condition has led to significant damage. ...
(Date:2/27/2017)... ... ... POUGHKEEPSIE, N. Y. – Peer-reviewed guidelines from the International Lyme and Associated ... Disease Control ( CDC ) and Infectious Diseases Society of America (IDSA) dismiss any ... into a single volume a compelling argument that the disease does exist in his ...
(Date:2/27/2017)... Francisco, CA (PRWEB) , ... February 27, 2017 ... ... center for hair transplantation therapy, is proud to announce a new informational post ... hair therapy procedures. Follicular Unit Extraction (FUE) hair transplant and Follicular Unit Transplantation ...
(Date:2/26/2017)... ... February 25, 2017 , ... The February 13, 2017, assassination of ... concern over nerve agents and the deadly use of chemical weapons. Many questions exist ... how even small doses can be lethal. , Jay Jagannathan, M.D., of Michigan-based Jagannathan ...
Breaking Medicine News(10 mins):
(Date:2/27/2017)... A recent research report published by Grand ... is expected to reach a value of $55.8 billion by 2025. ... 28 states have legalized marijuana for medical uses. In 2016, states ... , North Dakota , Ohio ... the drug in medical applications such as chemotherapies and pain management. ...
(Date:2/27/2017)... 27, 2017 Period October – December 2016 ... result amounted to SEK -16.4 (-6.4) million Result after tax ... before and after dilution Cash flow from operating activities amounted ... ... (0.4) million Operating result amounted to SEK -39.5 (-29.5) million ...
(Date:2/24/2017)... Research and Markets has announced the addition of the ... to 2025" report to their offering. ... The Global Wireless Health Market is ... next decade to reach approximately $330.5 billion by 2025. ... the given segments on global as well as regional levels presented ...
Breaking Medicine Technology: