Navigation Links
Scientists read monkeys' inner thoughts
Date:7/19/2012

Anyone who has looked at the jagged recording of the electrical activity of a single neuron in the brain must have wondered how any useful information could be extracted from such a frazzled signal.

But over the past 30 years, researchers have discovered that clear information can be obtained by decoding the activity of large populations of neurons.

Now, scientists at Washington University in St. Louis, who were decoding brain activity while monkeys reached around an obstacle to touch a target, have come up with two remarkable results.

Their first result was one they had designed their experiment to achieve: they demonstrated that multiple parameters can be embedded in the firing rate of a single neuron and that certain types of parameters are encoded only if they are needed to solve the task at hand.

Their second result, however, was a complete surprise. They discovered that the population vectors could reveal different planning strategies, allowing the scientists, in effect, to read the monkeys' minds.

By chance, the two monkeys chosen for the study had completely different cognitive styles. One, the scientists said, was a hyperactive type, who kept jumping the gun, and the other was a smooth operator, who waited for the entire setup to be revealed before planning his next move. The difference is clearly visible in their decoded brain activity.

The study was published in the July 19th advance online edition of the journal Science.

All in the task

The standard task for studying voluntary motor control is the "center-out task," in which a monkey or other subject must move its hand from a central location to targets placed on a circle surrounding the starting position.

To plan the movement, says Daniel Moran, PhD, associate professor of biomedical engineering in the School of Engineering & Applied Science and of neurobiology in the School of Medicine at Washington Univ
'/>"/>

Contact: Diana Lutz
dlutz@wustl.edu
314-935-5272
Washington University in St. Louis
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. World record: Scientists from northern Germany produce the lightest material in the world
2. NineSigma Partners with Scientists Without Borders to Find New Sustainable Packaging for Micronutrient Powders that Combat Malnutrition
3. Scripps Research Institute scientists find easier way to make new drug compounds
4. Finding Brings Scientists One Step Closer To Parkinsons Drug
5. Stanford scientists spark new interest in the century-old Edison battery
6. Scientists gain understanding of self-cleaning gecko foot hair
7. WHEATON® Introduces a New Web Community for Scientists, Researchers, and Biopharmaceutical Packagers
8. Unzipped carbon nanotubes could help energize fuel cells and batteries, Stanford scientists say
9. UCLA scientists unlock mystery of how handedness arises
10. NTU scientists invent superbug killers
11. Scientists gain new understanding of Alzheimers trigger
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists read monkeys' inner thoughts
(Date:7/10/2014)... 10, 2014 Research and Markets ( ... "International Photonic Integrated Circuit (Monolithic Integration, Hybrid ... report to their offering. ... of photonic integration traces its roots in the ... of photonic integration went unexplored and unfulfilled for ...
(Date:7/10/2014)... to the International Atomic Energy Agency (IAEA) the ... acquiring sufficient quantities of plutonium or highly enriched ... device. The IAEA also notes that most cases ... which can be challenging to detect with most ... appearing this week in the Journal of ...
(Date:7/10/2014)... D.C., June 17, 2014 Using microscopic polymer ... specific gases, researchers at MIT,s Quantum Photonics Laboratory ... levels in the parts-per-billion range. Optical sensors are ... their high signal-to-noise ratio, compact, lightweight nature, and ... gas sensors had been developed before, the MIT ...
(Date:7/10/2014)... basis of psychiatric disorders has been extremely challenging because ... but are insufficient to cause disease. Now investigators reporting ... journal Cell Stem Cell describe a strategy ... interact with other risk factors or environmental exposures to ... pinpoints a genetic variant that may predispose individuals to ...
Breaking Biology Technology:International Photonic Integrated Circuit (Monolithic Integration, Hybrid Integration, Module Integration) Market - Forecasts to 2019 2Sensitive detection method may help impede illicit nuclear trafficking 2Swell new sensors 2New strategy could uncover genes at the root of psychiatric illnesses 2
... , ROCKAWAY, N.J., Dec. 14 ... Approach , published by the Infusion Nurses ... extravasation.(1) Anthracyclines are a group of chemotherapy medications including ... the treatment of various types of cancer since the early ...
... , WALTHAM, Mass., Dec. ... that it has signed a new, three-year master services ... and services that serve patients in approximately 100 countries. ... for translation of the company,s online content, which includes ...
... WALTHAM, Mass., Dec. 14 Decision Resources, one of the world,s ... that, owing to the launches of several new agents, the atrial ... in 2008 to $6.1 billion in 2018 in the United States, ... new Pharmacor report entitled Atrial Fibrillation finds that a ...
Cached Biology Technology:Infusion Nurses Society References Totect(R) (Dexrazoxane For Injection) as the Only Antidote for the Treatment of Anthracycline Extravasation 2Infusion Nurses Society References Totect(R) (Dexrazoxane For Injection) as the Only Antidote for the Treatment of Anthracycline Extravasation 3Infusion Nurses Society References Totect(R) (Dexrazoxane For Injection) as the Only Antidote for the Treatment of Anthracycline Extravasation 4Infusion Nurses Society References Totect(R) (Dexrazoxane For Injection) as the Only Antidote for the Treatment of Anthracycline Extravasation 5Multi-Billion Dollar Biotech Firm Chooses Lionbridge as Exclusive Translation Provider with Three-Year Master Services Agreement 2Multi-Billion Dollar Biotech Firm Chooses Lionbridge as Exclusive Translation Provider with Three-Year Master Services Agreement 3The Atrial Fibrillation Drug Market Will Increase More Than Sevenfold, from $790 Million in 2008 to $6.1 Billion in 2018 2
(Date:7/11/2014)... Social animals often develop relationships with other group members ... In wild chacma baboons the strategy for grooming activities ... are just published in the scientific journal Biology ... of baboons is not practiced without ulterior motives. To ... for the individual, while grooming another individual can provide ...
(Date:7/11/2014)... 11, 2014 The increased risk of kidney injury ... resuscitation fluids reflects the mass of HES molecules, according ... official journal of the International Anesthesia Research Society (IARS). ... harmful effect of HES on cultured human renal proximal ... Christian Wunder and colleagues of University Hospital Wrzburg, Austria. ...
(Date:7/11/2014)... cannabinoid receptor type 1 can inhibit voltage-gated ... reduce neurotransmitter release. However, some scholars demonstrated ... extracellular Ca2+ influx and increase neurotransmitter release. ... Hospital Affiliated to Tongji Medical College, Huazhong ... whole cell voltage-clamp and calcium imaging in ...
Breaking Biology News(10 mins):Baboons groom early in the day to get benefits later 2In lab studies, hydroxyethyl starch has direct harmful effects on kidney cells 2
... More than 20 percent of atheist scientists are spiritual, ... public marries spirituality and religion, the study found that spirituality ... with scientific discovery for "spiritual atheist" scientists. ... Sociology of Religion . Through in-depth interviews ...
... , A new study from Cambridge University has for ... a higher than average number of autistic traits. ... today in the Journal of Autism and Developmental ... of biological girls with gender incongruence that persists into ...
... Amsterdam, 5 May 2011 Elsevier, the ... products and services, announced today the launch ... The journal aims at reporting the most recent ... intelligent computation based on the principles of swarm ...
Cached Biology News:More than 20 percent of atheist scientists are spiritual 2Female-to-male transsexual people have more autistic traits 2Elsevier announces launch of Swarm and Evolutionary Computation 2
Compound(s) tested through a broad panel of 38 ligand binding and enzyme assays targeting the Central Nervous System. Used to determine selecitivty and potential CNS-Side Effect liabilities of compo...
... tested through 63 ligand ... spanning a broad therapeutic ... includes many non human ... non-selective assays. Used ...
... Receptor (PR) Competitor Assay Kits are ... progesterone receptor binding compounds using fluorescence ... a fusion of glutathione transferase to ... progesterone receptor [PR-LBD(GST)] and a proprietary, ...
... is critical to the maintenance of ... proteins as important and diverse as ... shock and stress response, antigen presentation, ... ion channels, cell cycle regulation, transcription, ...
Biology Products: