News tagged with computer model

Sizing things up: The evolutionary neurobiology of scale invariance

(Medical Xpress)—Visual perception is far more complex and powerful than our experience suggests. Moreover, in attempting to both understand vision and implement it in a computational device, the fact that ...

Neuroscience created Feb 28, 2013 | popularity 4.8 / 5 (10) | comments 14 | with audio podcast feature

Team develops mathematical model to measure hidden HIV

(Medical Xpress)—Scientists have long believed that measuring the amount of HIV in a person's blood is an indicator of whether the virus is actively reproducing. A University of Delaware-led research team ...

HIV & AIDS created May 08, 2013 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Stents disrupt blood flow

(Medical Xpress)—A researcher at ETH Zurich is designing a realistic artery model with an implanted stent and is using a computer to simulate the blood flow through the stent. In doing so he is uncovering ...

Cardiology created May 06, 2013 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Brain imaging reveals the movies in our mind

Imagine tapping into the mind of a coma patient, or watching one's own dream on YouTube. With a cutting-edge blend of brain imaging and computer simulation, scientists at the University of California, Berkeley, ...

Neuroscience created Sep 22, 2011 | popularity 3.9 / 5 (35) | comments 8 | with audio podcast

Implanted prosthetic device restores, improves impaired decision-making ability in monkeys

(Medical Xpress)—Researchers have taken a key step towards recovering specific brain functions in sufferers of brain disease and injuries by successfully restoring the decision-making processes in monkeys.

Neuroscience created Sep 13, 2012 | popularity 4.9 / 5 (11) | comments 0 | with audio podcast

Deep brain stimulation studies show how brain buys time for tough choices

Take your time. Hold your horses. Sleep on it. When people must decide between arguably equal choices, they need time to deliberate. In the case of people undergoing deep brain stimulation (DBS) for Parkinson's disease, that ...

Neuroscience created Sep 25, 2011 | popularity 4.8 / 5 (11) | comments 5 | with audio podcast

Proteins expressed by human cytomegalovirus mapped

(Medical Xpress)—A new study in the US and Germany has added to our understanding of the human cytomegalovirus (HCMV) and how it manipulates the cells it infects.

Medical research created Nov 23, 2012 | popularity 4.8 / 5 (5) | comments 1 | with audio podcast report

Hallmarks of psychiatric illness can reveal themselves remotely

Researchers discovered that healthy people and those with borderline personality disorder displayed different patterns of behavior while playing an online strategy game, so much so that when healthy players ...

Psychology & Psychiatry created Apr 09, 2013 | popularity 4.3 / 5 (7) | comments 0 | with audio podcast

Monitoring brain activity during study can help predict test performance

(Medical Xpress)—Research at Sandia National Laboratories has shown that it's possible to predict how well people will remember information by monitoring their brain activity while they study. 

Psychology & Psychiatry created Sep 10, 2012 | popularity 5 / 5 (4) | comments 0

The neuroscience of finding your lost keys: How the brain keeps track of similar but distinct memories

Ever find yourself racking your brain on a Monday morning to remember where you put your car keys? When you do find those keys, you can thank the hippocampus, a brain region responsible for storing and retrieving ...

Neuroscience created Mar 21, 2013 | popularity 4 / 5 (1) | comments 0 | with audio podcast

What makes self-directed learning effective?

In recent years, educators have come to focus more and more on the importance of lab-based experimentation, hands-on participation, student-led inquiry, and the use of "manipulables" in the classroom. The underlying rationale ...

Psychology & Psychiatry created Oct 04, 2012 | popularity 4.5 / 5 (8) | comments 13 | with audio podcast

Parkinson's disease: Study of live human neurons reveals the disease's genetic origins

Parkinson's disease researchers at the University at Buffalo have discovered how mutations in the parkin gene cause the disease, which afflicts at least 500,000 Americans and for which there is no cure.

Parkinson's & Movement disorders created Feb 07, 2012 | popularity 5 / 5 (5) | comments 1 | with audio podcast

How connections in the brain must change to form memories could help to develop artificial cognitive computers

Exactly how memories are stored and accessed in the brain is unclear. Neuroscientists, however, do know that a primitive structure buried in the center of the brain, called the hippocampus, is a pivotal region ...

Neuroscience created Nov 07, 2012 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Team unveils novel wireless brain sensor

A team of neuroengineers based at Brown University has developed a fully implantable and rechargeable wireless brain sensor capable of relaying real-time broadband signals from up to 100 neurons in freely ...

Neuroscience created Feb 28, 2013 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Studying everyday eye movements could aid in diagnosis of neurological disorders

Researchers at the University of Southern California have devised a method for detecting certain neurological disorders through the study of eye movements.

Neuroscience created Aug 30, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Computer simulation

A computer simulation, a computer model or a computational model is a computer program, or network of computers, that attempts to simulate an abstract model of a particular system. Computer simulations have become a useful part of mathematical modeling of many natural systems in physics (computational physics), chemistry and biology, human systems in economics, psychology, and social science and in the process of engineering new technology, to gain insight into the operation of those systems, or to observe their behavior.

Computer simulations vary from computer programs that run a few minutes, to network-based groups of computers running for hours, to ongoing simulations that run for days. The scale of events being simulated by computer simulations has far exceeded anything possible (or perhaps even imaginable) using the traditional paper-and-pencil mathematical modeling: over 10 years ago, a desert-battle simulation, of one force invading another, involved the modeling of 66,239 tanks, trucks and other vehicles on simulated terrain around Kuwait, using multiple supercomputers in the DoD High Performance Computer Modernization Program; a 1-billion-atom model of material deformation (2002); a 2.64-million-atom model of the complex maker of protein in all organisms, a ribosome, in 2005; and the Blue Brain project at EPFL (Switzerland), began in May 2005, to create the first computer simulation of the entire human brain, right down to the molecular level.

For more information about Computer simulation, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.