Navigation Links
Echolocation
Date:8/29/2013

Biologists at LMU have demonstrated that people can acquire the capacity for echolocation, although it does take time and work.

As blind people can testify, we humans can hear more than one might think. The blind learn to navigate using as guides the echoes of sounds they themselves make. This enables them to sense the locations of walls and corners, for instance: by tapping the ground with a stick or making clicking sounds with the tongue, and analyzing the echoes reflected from nearby surfaces, a blind person can map the relative positions of objects in the vicinity. LMU biologists led by Professor Lutz Wiegrebe of the Department of Neurobiology (Faculty of Biology) have now shown that sighted people can also learn to echolocate objects in space, as they report in the biology journal "Proceedings of the Royal Society B".

Wiegrebe and his team have developed a method for training people in the art of echolocation. With the help of a headset consisting of a microphone and a pair of earphones, experimental subjects can generate patterns of echoes that simulate acoustic reflections in a virtual space: the participants emit vocal clicks, which are picked up by the microphone and passed to a processor that calculates the echoes of a virtual space within milliseconds. The resulting echoes are then played back through the earphones. The trick is that the transformation applied to the input depends on the subject's position in virtual space. So the subject can learn to associate the artificial "echoes" with the distribution of sound-reflecting surfaces in the simulated space.

A dormant skill

"After several weeks of training, the participants in the experiment were able to locate the sources of echoes pretty well. This shows that anyone can learn to analyze the echoes of acoustic signals to obtain information about the space around him. Sighted people have this ability too; they simply don't need to use it in everyday situat
'/>"/>

Contact: Luise Dirscherl
dirscherl@lmu.de
49-892-180-2706
Ludwig-Maximilians-Universitt Mnchen
Source:Eurekalert

Page: 1 2

Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/23/2014)... , July 23, 2014 ... threat detection, announced today it has been named in ... The Market Guide replaces Gartner,s well-known Magic Quadrant for ... categorized BioCatch as one of several vendors to deliver ... analysis will become a standard feature of at least ...
(Date:7/23/2014)... potential for clinical use of induced pluripotent stem ... previously been hindered by the risk of dysregulated ... ability to use etoposide treatment to halt teratoma ... disease, specifically acute myocardial infarction, is demonstrated in ... , a peer-reviewed journal from Mary Ann Liebert, ...
(Date:7/23/2014)... the International Journal of Fuzzy Systems ( ... Systems Association (TFSA). The cooperation will allow the journal ... fuzzy research., The International Journal of Fuzzy Systems ... with the theory, design and application of fuzzy systems, ... ranging from hardware to software. Launched in 1999, the ...
Breaking Biology News(10 mins):BioCatch Featured in Gartner's 2014 Online Fraud Detection Market Guide 2BioCatch Featured in Gartner's 2014 Online Fraud Detection Market Guide 3
... has identified a new genetic mutation responsible for osteogenesis imperfecta ... break, according to a study published today in the journal ... fractures in a lifetime or several hundred beginning before birth. ... from 20,000 to 50,000. While the study is an important ...
... combination of satellite data, computer models and weather balloon ... fires as much as doubled ground-level ozone thousands of ... July 2004. The study, which will appear online Sept. ... a rare glimpse at the precise air-quality effects from ...
... 1930s to estimate the abundance of fish has shown ... at reducing poaching of elephants, African buffaloes and black ... , "Wildlife within protected areas is under increasing threat ... argue that enforcement within protected areas is not sufficient ...
Cached Biology News:Researchers discover new gene responsible for brittle bone disease 2Researchers discover new gene responsible for brittle bone disease 3NASA study: Alaskan fires affected Houston air quality in 2004 2NASA study: Alaskan fires affected Houston air quality in 2004 3Serengeti patrols cut poaching of buffalo, elephants, rhinos 2
(Date:7/23/2014)... OncLive® is pleased to announce that ... Strategic Alliance Partnership program. , By participating ... will have the opportunity to work with the ... research initiatives, community-directed cancer prevention programs, and other ... OncLive to educate their peers by providing insights ...
(Date:7/23/2014)... Astra Nova Training , a ... pharma training services, and the Alliance for ... non-profit integrating the expertise and investments of research ... system for clinical trials, are pleased to announce ... of industry professionals through improved and easily available ...
(Date:7/22/2014)... D.C., June 22, 2014 Even within a phylum so ... is distinguished among other arthropods for its cruelty -- at ... Central America, the fly is a most predatory sort of ... cricket, deposits a smear of larvae, and leaves its wicked ... out. , None of this would be possible without ...
(Date:7/22/2014)... in mechanical engineering at the University of Texas at ... the North Texas section of the American Society of ... members in 158 countries who develop engineering standards and ... community, benefiting the world. , ASME recognized Baughn earlier ... honors banquet. Baughn retired as an engineering fellow in ...
Breaking Biology Technology:OncLive Expands Its Strategic Alliance Partnership Program With the Addition of UNC Lineberger Comprehensive Cancer Center 2OncLive Expands Its Strategic Alliance Partnership Program With the Addition of UNC Lineberger Comprehensive Cancer Center 3Astra Nova and ACRES Partner on Quality and Access of Training for Research Professionals 2Astra Nova and ACRES Partner on Quality and Access of Training for Research Professionals 3Fly-inspired sound detector 2Fly-inspired sound detector 3Fly-inspired sound detector 4UT Dallas professor receives Engineer of the Year award 2
... JUPITER, Fla., April 11, 2012 BioRestorative Therapies, Inc. ... a life sciences company focused on cellular therapies for ... on the previously announced license agreement with Regenerative Sciences, ... the treatment of bulging and herniated discs. This treatment ...
... 2012  Mars, Incorporated, as an official partner of ... across its Petcare, Chocolate, Wrigley, Food and Symbioscience ... leading food companies, it is seeking to improve ... leadership and collaboration. TEDMED ( www.tedmed.com ...
...  Spherix Incorporated (NASDAQ: SPEX ) – ... metabolic syndrome and atherosclerosis, and providers of technical ... and pharmaceutical companies – would like to remind ... a conference call to provide a business update ...
Cached Biology Technology:BioRestorative Therapies Announces Closing of License Agreement for Adult Stem Cell Disc/Spine Procedure 2BioRestorative Therapies Announces Closing of License Agreement for Adult Stem Cell Disc/Spine Procedure 3Mars, Incorporated Answers Question: 'How Does Feeding People and Pets Nurture Science and Discovery?' At TEDMED 2012 2Mars, Incorporated Answers Question: 'How Does Feeding People and Pets Nurture Science and Discovery?' At TEDMED 2012 3Mars, Incorporated Answers Question: 'How Does Feeding People and Pets Nurture Science and Discovery?' At TEDMED 2012 4Reminder: Spherix to Hold Business Update Conference Call April 11 at 1:00 p.m. Eastern Time 2Reminder: Spherix to Hold Business Update Conference Call April 11 at 1:00 p.m. Eastern Time 3
Lysozyme C (W-20)...
Abgene's ALTO-8 is the first automated decapper/capper for Abgene Twist-Lock tubes....
... refrigerated multifunction centrifuges are equally capable of high ... sound level with a large range of rotors ... exchange system without tools ensures that the required ... Instant rotor exchange (5 sec.) with ...
versican (H-56)...
Biology Products: