Navigation Links
Caltech scientists create robot surrogate for blind persons in testing visual prostheses
Date:10/19/2009

PASADENA, Calif.Scientists at the California Institute of Technology (Caltech) have created a remote-controlled robot that is able to simulate the "visual" experience of a blind person who has been implanted with a visual prosthesis, such as an artificial retina. An artificial retina consists of a silicon chip studded with a varying number of electrodes that directly stimulate retinal nerve cells. It is hoped that this approach may one day give blind persons the freedom of independent mobility.

The robotor, rather, the mobile robotic platform, or roveris called CYCLOPS. It is the first such device to emulate what the blind can see with an implant, says Wolfgang Fink, a visiting associate in physics at Caltech and the Edward and Maria Keonjian Distinguished Professor in Microelectronics at the University of Arizona. Its development and potential uses are described in a paper recently published online in the journal Computer Methods and Programs in Biomedicine.

An artificial retina, also known as a retinal prosthesis, may use either an internal or external miniature camera to capture images. The captured images then are processed and passed along to the implanted silicon chip's electrode array. (Ongoing work at Caltech's Visual and Autonomous Exploration Systems Research Laboratory by Fink and Caltech visiting scientist Mark Tarbell has focused on the creation and refinement of these image-processing algorithms.) The chip directly stimulates the eye's functional retinal ganglion cells, which carry the image information to the vision centers in the brain.

CYCLOPS fills a void in the process of testing visual prostheses, explains Fink. "How do you approximate what the blind can see with the implant so you can figure out how to make it better?" he asks.

One way is to test potential enhancements on a blind person who has been given an artificial retina. And, indeed, the retinal implant research team does this often, and ex
'/>"/>

Contact: Lori Oliwenstein
lorio@caltech.edu
626-395-3631
California Institute of Technology
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Caltech scientists get detailed glimpse of chemoreceptor architecture in bacterial cells
2. Caltech neuroscientists find brain region responsible for our sense of personal space
3. Caltech researchers explore how cells reconcile mixed messages in decisions about growth
4. Caltech scientists reveal how neuronal activity is timed in brains memory-making circuits
5. Caltech scientists show why anti-HIV antibodies are ineffective at blocking infection
6. Caltech scientists control complex nucleation processes using DNA origami seeds
7. Caltech researchers train computers to analyze fruit-fly behavior
8. Caltech and UCSD researchers shed light on how proteins find their shapes
9. Caltech researchers help unlock the secrets of gene regulatory networks
10. Caltech researchers get first look at how groups of cells coordinate their movements
11. Caltech scientists show function of helical band in heart
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Caltech scientists create robot surrogate for blind persons in testing visual prostheses
(Date:8/22/2014)... French . NAIROBI (22 ... soils looming as a major threat to food security across ... the last five years, 1.7 million African farmers in 13 ... hectares and helped them double or even triple crop yields. ... in Africa (AGRA) focuses on intensive efforts initiated five years ...
(Date:8/22/2014)... 2014 Diabetes affects nearly 10 percent of ... diabetics: constant finger pricking to test blood glucose ... reports the development of a protein that could ... for diabetes patients. In the American Chemical Society,s ... shows off her "designer protein" that could eventually ...
(Date:8/22/2014)... MD FASEB MARC (Maximizing Access to Research Careers) ... FASEB Grant Writing Seminar & Practical Exercises Workshop which ... Bethesda, Maryland from August 25-26, 2014. These awards ... and research scientists from underrepresented groups in the the ... This year MARC conferred 11 awards totaling $20,350. , ...
Breaking Biology News(10 mins):Effort to confront Africa's soil health crisis helps millions of farmers triple yields 2Effort to confront Africa's soil health crisis helps millions of farmers triple yields 3Effort to confront Africa's soil health crisis helps millions of farmers triple yields 4
... light on the causes of Parkinson,s disease, researchers report that ... mitochondria. A shutdown in fuel can have devastating effects on ... energy despite making up only 2 percent of body weight. ... FDA approved drugs early on may prevent or delay the ...
... CAMBRIDGE, Mass. -- By creating a better way to ... with MIT,s Picower Institute for Learning and Memory and the ... synapse formation. These studies could also help further understanding of ... and Fragile X syndrome. The study will appear in the ...
... their dosages may be standardized, but not every patient ... personal genetic characteristics of individuals and populations can explain ... not another, so medical researchers are adopting the new ... lab is leading the way. Dr. Noam ...
Cached Biology News:In Parkinson's disease, brain cells abandon mitochondria, researchers report 2In Parkinson's disease, brain cells abandon mitochondria, researchers report 3MIT researchers develop a better way to see molecules at work in living brain cells 2An X-ray for your genes 2
(Date:8/22/2014)... 2014 The Global and China Diabetes ... the current state of the Diabetes Drug industry in ... overview of the industry, including definitions, applications and industry ... analysis are provided with a focus on history, developments, ... between the international and Chinese situation is also offered. ...
(Date:8/22/2014)... August 22, 2014 The AMA is ... its members in Alaska that Alaska Governor Sean Parnell ... 15, further defining public use of Unmanned Aircraft Systems ... Force. House Bill 255states that it is, “An Act ... captured by an unmanned aircraft system.” It defines State ...
(Date:8/22/2014)... (PRWEB) August 22, 2014 “Our ... acknowledgement is a national disgrace. Furthermore, every governmental ... establishing the current, deplorable state of unorganized dysfunction ... great mistakes," to merely serve as a device ... extent of colossal failure(s) that have accumulated through ...
(Date:8/21/2014)... at the Institute for Molecular Medicine Finland (FIMM), ... developed a novel "man and machine" decision support ... aid was described in PLOS One ... based on computer vision algorithms similar to those ... of only the diagnostically most relevant areas. Tablet ...
Breaking Biology Technology:Diabetes Drugs Industry Growth Analysis in Global, China Regions Research Report Available at DeepResearchReports.com 2Diabetes Drugs Industry Growth Analysis in Global, China Regions Research Report Available at DeepResearchReports.com 3State of Alaska Signs Unmanned Aircraft Systems Bill 25 Great Mistakes in Healthcare and How to Fix Them by Dr. Ira Williams 2A novel 'man and machine' decision support system makes malaria diagnostics more effective 2
... Inc., a medical device,company that has developed a ... announced today that they have successfully raised $1.4,million ... Chief,Executive Officer, Clark Adams stated, "Valor,s Board and ... will be used to complete,clinical trials needed for ...
... 6 Halozyme Therapeutics, Inc.,(Nasdaq: HALO ), ... extracellular matrix for the drug delivery,endocrinology, oncology, and ... and nine months ended September 30, 2008., ... and I am,pleased with the initiation of our ...
... 6 NutraCea (OTC Bulletin Board:,NTRZ), a world ... and,technology announced today that it has appointed Olga ... Todd Crow, in accordance with,his previously announced intentions, ... a consulting and advisory capacity., Ms. Hernandez-Longan ...
Cached Biology Technology:Halozyme Therapeutics Reports 2008 Third Quarter Financial Results 2Halozyme Therapeutics Reports 2008 Third Quarter Financial Results 3Halozyme Therapeutics Reports 2008 Third Quarter Financial Results 4Halozyme Therapeutics Reports 2008 Third Quarter Financial Results 5Halozyme Therapeutics Reports 2008 Third Quarter Financial Results 6Halozyme Therapeutics Reports 2008 Third Quarter Financial Results 7Halozyme Therapeutics Reports 2008 Third Quarter Financial Results 8NutraCea Appoints New Chief Financial Officer 2
... Set from different human fetal normal ... maybe available upon request. Customers ... the whole set, and pay 70% ... All Dr. P Set products are ...
... Steady gravity-fed delivery of buffer and ... perfusion. Rat version. In Vivo Manual ... gravity-fed delivery of buffer and fixative ... to setup, use and clean--Complete system ...
Mouse IL-31 RA Biotinylated Affinity Purified PAb...
... assay system offers the following ... for batch-processing systems, Long lasting ... microplates such as 384-well and ... storage conditions ( 2 - ...
Biology Products: