Navigation Links
Brain prostheses create a sense of touch
Date:2/16/2013

BOSTON, MA -- Rats can't usually see infrared light, but they have "touched" it in a Duke University lab.

The rats sensed the light as a sensation of touch after Duke neurobiologist Miguel Nicolelis and his team fitted the animals with an infrared detector wired to electrodes implanted in the part of the mammalian brain that processes information related to the sense of touch.

One of the main flaws of current human, brain-controlled prosthetics is that patients cannot sense the texture of what they touch, Nicolelis said. His goal is to give quadriplegics not only the ability to move their limbs again, but also to sense the texture of objects placed in their hands or experience the nuances of the terrain under their feet.

His lab studies how to connect brain cells with external electrodes for brain-machine interfaces and neural prosthetics in human patients and non-human primates, giving them the ability to control limbs, both real and virtual, using only their minds. He and his team have shown that monkeys, without moving any part of their real bodies, could use their electrical brain activity to guide the virtual hands of an avatar to touch virtual objects and recognize their simulated textures.

His latest study, published Feb. 12 in Nature Communications, shows that the rats' cortexes respond both to the simulated sense of touch created by the infrared light sensors and to whisker touch, as if the cortex is dividing itself evenly so that the brain cells process both types of information.

This plasticity of the brain counters the current "optogenetic" approach to brain stimulation, which suggests that a particular neuronal cell type should be stimulated to generate a desired neurological function. Instead, stimulating a broader range of cell types might help a cortical region adapt to new sensory sources, Nicolelis said.

His team recently documented the firing patterns of nearly 2,000 individual, in
'/>"/>

Contact: Ashley Yeager
ashley.yeager@duke.edu
919-681-8057
Duke University
Source:Eurekalert

Page: 1 2

Related biology news :

1. REST is crucial for the timing of brain development
2. Holding a mirror to brain changes in autism
3. Strong scientific evidence that eating berries benefits the brain
4. The Japanese traditional therapy, honokiol, blocks key protein in inflammatory brain damage
5. Step forward in research into new treatments for brain edema
6. University of Alberta led research may have discovered how memories are encoded in our brains
7. Nanotherapy: Treating deadly brain tumors by delivering big radiation with tiny tools
8. Friendly to a fault, yet tense: Personality traits traced in brain
9. New discoveries about brain-hand connection sought to improve therapies, treatments, prosthetics
10. Autism risk gene linked to differences in brain structure
11. Amyloid beta in the brain of individuals with Alzheimers disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/23/2014)... Scientists have scoured cow rumens and termite guts for ... for the production of next-generation biofuels, but some of ... human lower intestine, researchers report. , Their study ... Academy of Sciences , is the first to use ... the human gut can digest fiber, breaking it down ...
(Date:9/23/2014)... could be as good for your mental as your ... by the University of Warwick,s Medical School using data ... BMJ Open focused on mental wellbeing and ... associated with an individual,s fruit and vegetable consumption. , ... or more portions of fruit and vegetables a day, ...
(Date:9/23/2014)... organisms, including humans, have parasitic DNA fragments called "jumping ... instructions in the process. And that phenomenon can result ... the University of Rochester now report that the "jumping ... when a multi-function protein stops keeping them in check ... In a study published today in Nature Communications ...
Breaking Biology News(10 mins):Search for better biofuels microbes leads to the human gut 2Search for better biofuels microbes leads to the human gut 3Eating five a day may keep the blues away 2A multi-function protein is key to stopping genomic parasites from 'jumping' 2
... replacement surgeries can help relieve joint pain common ... the debris from prosthetic joints leads to aseptic ... a Wayne State University researcher determined that the ... disintegration. There was one caveat, however: there are ...
... female mosquito cannot tell if the male that she has ... her eggs, according to a new study from scientists at ... journal Proceedings of the National Academy of Sciences , ... of malaria by interfering with the mosquitoes, ability to reproduce. ...
... ALAMOS, New Mexico, August 8, 2011A Los Alamos National ... the first time the critical role that an elusive ... aid in treatment of peptic ulcers or acid reflux ... waste into transportation fuels. In a paper appearing ...
Cached Biology News:Wayne State researcher discovers antibiotic useful for localized treatment of bone wear 2Mosquitoes can't spot a spermless mate 2Mosquitoes can't spot a spermless mate 3Researchers use neutrons to spy on the elusive hydronium ion 2
(Date:9/23/2014)... , Sept. 23, 2014 ... of the biomaterial family and are increasingly becoming ... body fluids and tissues without having a negative ... used as tissue replacement and tissue repair materials ... materials such as ceramics, glass, glass-ceramics, and composites. ...
(Date:9/23/2014)... Kamal Rashid , PhD, director of ... Center (BETC) and research professor of biology and biotechnology ... an international two-day event focused on biomanufacturing set for ... the event will bring together leaders of companies from ... and produce human therapeutics. “The growth curve for biomanufacturing ...
(Date:9/23/2014)... 2014 This is a professional ... the Phenolic Resin industry in Global and China.The ... including definitions, applications and industry chain structure. Global ... provided with a focus on history, developments, trends ... between the international and Chinese situation is also ...
(Date:9/23/2014)... de Reuil, France (PRWEB) September 23, 2014 ... to protection of laboratory personnel since 1968 and Burdinola, ... the development of a new filtered fume hood. ... above their laboratory fume hood, Burdinola will now offer ... for filtering a wide range of chemicals, best-in-class detection ...
Breaking Biology Technology:Global Bioactive Material Market 2014-2018 2Worcester Polytechnic Institute's Biomanufacturing Expertise to be Featured in Berlin 2Worcester Polytechnic Institute's Biomanufacturing Expertise to be Featured in Berlin 3Phenolic Resin Industry (International, China) Development Policy and Plan Now Available at ReportsnReports.com 2Erlab Partners with Burdinola to Deliver an Innovative Filtered Fume Hood 2
... , RESTON, Va., July 9 Mirixa Corporation, the ... the hiring of three new members to its growing ... FASCP, Kim Swiger, RPh, and Paul Miller, MS, RPh. ... closely with Mirixa,s pharmacy partners, state and national pharmacy ...
... FRANCISCO, Calif., July 9 Poniard Pharmaceuticals, Inc. (Nasdaq: ... therapies, today announced the appointment of Gary A. Lyons, to ... number of directors on the Poniard board to ten. , ... to help guide us as we move toward our goal ...
... , SUNNYVALE, Calif., July 9 Cepheid (Nasdaq: CPHD ... second quarter ended June 30, 2009, on Thursday, July 30, 2009, ... will host a management presentation at 2 p.m. Pacific Time on ... the live webcast, please visit Cepheid,s website at www.cepheid.com/investors ...
Cached Biology Technology:Mirixa Corporation Announces Key New Hires 2Poniard Pharmaceuticals Appoints Gary A. Lyons to Board of Directors 2Poniard Pharmaceuticals Appoints Gary A. Lyons to Board of Directors 3Cepheid Schedules 2009 Second Quarter Financial Results Announcement and Webcast 2
HAMP Immunogen: HAMP (AAH20612, 25 a.a. ~ 85 a.a) full length recombinant protein with GST tag. Storage: -20 C, Avoid Freeze/Thaw Cycles *Available for distribution in the US only...
... peptide transporter 2 (APT2) ... transporter PSF2) (Peptide supply ... transporter involved in antigen ... Antigen: ...
Raised to arginine vasopressin coupled to bovine thyroglobulin with carbodiimide ....
Chicken polyclonal to HAGH ( Abpromise for all tested applications). Antigen: Synthetic peptide, corresponding to N terminal amino acids 110-260 of Human HAGH. Entrez GeneID: 3029 Swiss ...
Biology Products: