PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Lumosity presents 99,022-participant study on learning rates at Neuroscience 2014

Altering cognitive task difficulty level affects learning rates

2014-11-18
(Press-News.org) Washington, D.C. - November 18, 2014 - Lumosity is presenting new research today at the 2014 Society for Neuroscience conference on how altering cognitive task parameters affects learning rates. The study, titled "Optimizing Cognitive Task Designs to Improve Learning Rates in a Large Online Population," analyzed game play performance from 99,022 participants, and found that participants operating closer to their performance threshold earlier in their experience with a cognitive task tend to have faster learning rates - especially at higher levels of difficulty.

"By looking at large numbers of game plays, we can detect small effects in learning rates that result from changing the difficulty progression of cognitive tasks," said Nicole Ng, Research Associate at Lumosity and lead author of the study. "Our research goals are twofold: we can run online studies quickly and with thousands of participants to better understand how people learn, and also apply these findings to improve our product experience."

Participants new to Lumosity were randomly assigned to different versions of of 3 games that were part of their daily battery of cognitive tasks: Memory Matrix (spatial recall task), Pinball Recall (working memory task), and Raindrops (arithmetic task). Parameters dictating task difficulty were modified for each game resulting in varying degrees of exposure to levels either below or above their performance threshold, as well as a control condition.

Performance metrics, such as number of correct responses were recorded across sessions for individuals and compared across groups. Results controlled for age, gender, education, and number of game plays, and accounted for individual differences in performance across all participants. This study suggests that optimizing the progression of cognitive task difficulty to accelerate participants'' exposure to more difficult levels leads to faster learning. Our results also provide preliminary evidence that these differences in learning persist when participants return to the control condition. Additional investigation is needed to determine whether this accelerated learning curve extends to other non-trained cognitive tasks.

INFORMATION:

About Lumosity's Human Cognition Project The Human Cognition Project is Lumosity's research arm. The effort supports both in-house internal data science research at Lumosity, as well as collaborations with external academic researchers who use Lumosity products to study a broad range of topics. Lumosity currently works with 63 researchers at 47 institutions, in 6 countries, on 62 ongoing projects. For more information, please visit: http://www.lumosity.com/hcp/.



ELSE PRESS RELEASES FROM THIS DATE:

Pioneering anti-clotting medication halves stent blockage in heart attack patients

2014-11-18
Ticagrelor halves risks of stents blocking with blood clots Study of 18,000 patients shows cost-effective drug could prevent premature deaths Reduces the risk of patients needing repeat operations Treating heart attack patients with ticagrelor reduces the risk of stents blocking with blood clots according to a ground breaking new study conducted by researchers from the University of Sheffield. The new findings confirm that treating heart attack patients with the pioneering drug ticagrelor, instead of the previous standard treatment clopidogrel, could halve the risks ...

Salamanders are a more abundant food source in forest ecosystems than previously thought

Salamanders are a more abundant food source in forest ecosystems than previously thought
2014-11-18
COLUMBIA, Mo. - In the 1970s, ecologists published results from one of the first whole-forest ecosystem studies ever conducted in Hubbard Brook, New Hampshire. In the paper, scientists reported that salamanders represent one of the largest sources of biomass, or food, of all vertebrates in the forest landscape. Now, using new sampling and statistical techniques not available during the past study, researchers at the University of Missouri have estimated that the population of salamanders in forested regions of the Missouri Ozarks are 2-4 times higher than originally thought, ...

New data suggest little benefit of adding heart valve repair to bypass surgery in patients with coronary heart disease

2014-11-18
NEW YORK (November 18, 2014) - The addition of mitral valve (MV) repair (a valve of the heart) to coronary artery bypass grafting (CABG), a type of open-heart surgery, did not result in significant benefit to the patient and was associated with increased risk of neurological events. Therefore, the routine addition of MV repair to CABG in patients with moderate IMR did not demonstrate a clinically meaningful advantage. The Cardiothoracic Surgical Trials Network (CTSN) is reporting results for the first time from a clinical trial of patients who have a complication of ...

Pain from rejection and physical pain may not be so similar after all

2014-11-18
Over the last decade, neuroscientists have largely come to believe that physical pain and social pain are processed by the brain in the same way. But a new study led by the University of Colorado shows that the two kinds of pain actually use distinct neural circuits, a finding that could lead to more targeted treatments and a better understanding of how the two kinds of pain interact. For the study, published in the journal Nature Communications, the researchers used a technique recently borrowed from the computer science field by neuroscientists--multivariate pattern ...

Field-emission plug-and-play solution for microwave electron guns

Field-emission plug-and-play solution for microwave electron guns
2014-11-18
WASHINGTON D.C., November 18, 2014 - On a quest to design an alternative to the two complex approaches currently used to produce electrons within microwave electron guns, a team of researchers from Euclid TechLabs and Argonne National Laboratory's Center for Nanoscale Materials have demonstrated a plug-and-play solution capable of operating in this high-electric-field environment with a high-quality electron beam. Unfamiliar with microwave electron guns? Perhaps best known within the realm of X-ray sources, microwave electron guns provide a higher current and much higher ...

New computational model could design medications like chemotherapy with fewer side effects

2014-11-18
Medications, such as chemotherapy, are often limited by their tendency to be detrimental to healthy cells as an unintended side effect. Now research in the November 18th issue of Cell Press's Biophysical Journal offers a new computational model that can help investigators design ways to direct drugs to their specific targets. A major problem with many cancer drugs is the harmful effects they can have on normal cells. Similarly, treatments for a variety of other diseases can have side effects by acting on cells that are not meant to be targeted. Researchers have tried ...

Mother's soothing presence makes pain go away -- and changes gene activity in infant brain

2014-11-18
A mother's "TLC" not only can help soothe pain in infants, but it may also impact early brain development by altering gene activity in a part of the brain involved in emotions, according to new study from NYU Langone Medical Center. By carefully analyzing what genes were active in infant rat brains when the mother was present or not present, the NYU researchers found that several hundred genes were more, or less, active in rat infants experiencing pain than in those that were not. With their mothers present, however, fewer than 100 genes were similarly expressed. According ...

Computer model sets new precedent in drug discovery

2014-11-18
(BOSTON) - A major challenge faced by the pharmaceutical industry has been how to rationally design and select protein molecules to create effective biologic drug therapies while reducing unintended side effects - a challenge that has largely been addressed through costly guess-and-check experiments. Researchers at the Wyss Institute for Biologically Inspired Engineering at Harvard University offer a new approach, in a study published today in Biophysical Journal. "I believe that biology is the technology of this century," said the study's senior author and Wyss Institute ...

Using science to open way to 'blue economy'

2014-11-18
STANFORD, CA Today, scientists at the Natural Capital Project share new science and open source software that can calculate risk to coastal and marine ecosystems. These novel tools, described in the journal Environmental Research Letters, were used to design the first integrated coastal zone management plan for the Caribbean country of Belize. Conducted with the Coastal Zone Management Authority and Institute in Belize and the World Wildlife Fund, the study offers a comprehensive explanation of the process used to calculate risk of habitat degradation in marine spatial ...

Two sensors in one

2014-11-18
CAMBRIDGE, MA -- MIT chemists have developed new nanoparticles that can simultaneously perform magnetic resonance imaging (MRI) and fluorescent imaging in living animals. Such particles could help scientists to track specific molecules produced in the body, monitor a tumor's environment, or determine whether drugs have successfully reached their targets. In a paper appearing this week in Nature Communications, the researchers demonstrate the use of the particles, which carry distinct sensors for fluorescence and MRI, to track vitamin C in mice. Wherever there is a high ...

LAST 30 PRESS RELEASES:

Visible light-driven deracemization of α-aryl ketones synergistically catalyzed by thiophenols and chiral phosphoric acid

Most AI bots lack basic safety disclosures, study finds

How competitive gaming on discord fosters social connections

CU Anschutz School of Medicine receives best ranking in NIH funding in 20 years

Mayo Clinic opens patient information office in Cayman Islands

Phonon lasers unlock ultrabroadband acoustic frequency combs

Babies with an increased likelihood of autism may struggle to settle into deep, restorative sleep, according to a new study from the University of East Anglia.

National Reactor Innovation Center opens Molten Salt Thermophysical Examination Capability at INL

International Progressive MS Alliance awards €6.9 million to three studies researching therapies to address common symptoms of progressive MS

Can your soil’s color predict its health?

Biochar nanomaterials could transform medicine, energy, and climate solutions

Turning waste into power: scientists convert discarded phone batteries and industrial lignin into high-performance sodium battery materials

PhD student maps mysterious upper atmosphere of Uranus for the first time

Idaho National Laboratory to accelerate nuclear energy deployment with NVIDIA AI through the Genesis Mission

Blood test could help guide treatment decisions in germ cell tumors

New ‘scimitar-crested’ Spinosaurus species discovered in the central Sahara

“Cyborg” pancreatic organoids can monitor the maturation of islet cells

Technique to extract concepts from AI models can help steer and monitor model outputs

Study clarifies the cancer genome in domestic cats

Crested Spinosaurus fossil was aquatic, but lived 1,000 kilometers from the Tethys Sea

MULTI-evolve: Rapid evolution of complex multi-mutant proteins

A new method to steer AI output uncovers vulnerabilities and potential improvements

Why some objects in space look like snowmen

Flickering glacial climate may have shaped early human evolution

First AHA/ACC acute pulmonary embolism guideline: prompt diagnosis and treatment are key

Could “cyborg” transplants replace pancreatic tissue damaged by diabetes?

Hearing a molecule’s solo performance

Justice after trauma? Race, red tape keep sexual assault victims from compensation

Columbia researchers awarded ARPA-H funding to speed diagnosis of lymphatic disorders

James R. Downing, MD, to step down as president and CEO of St. Jude Children’s Research Hospital in late 2026

[Press-News.org] Lumosity presents 99,022-participant study on learning rates at Neuroscience 2014
Altering cognitive task difficulty level affects learning rates