Tag: "rewarded" at biology news

Monkeys pay one another for work

...ree times more willing to assist again when it was rewarded for its efforts with food in the immediately preceding trial. "The increased tendency to share after successful joint efforts to obtain food may be the result of psychological mechanisms as complex as displaying gratitude for receiving help," sa...

Putting a price tag on paradise

...en to recycle orange peels. Such efforts are being rewarded with innovative financial mechanisms, whose scope and variety are expected to grow." Daily points to New York City's 1996 decision to improve its drinking water by investing $1.5 billion to restore the Catskill mountains watershed, instead of spendin...

Vanderbilt neuroscientists identify 'oops center' in the brain

...he monkey shifted its gaze to the new spot, it was rewarded with a drink of juice. During some of the trials, ...he peripheral spot. In these cases, the monkey was rewarded when it cancelled the eye movement it was planning and kept its vision fixed on the central target. ...

Gene study to unlock causes of stroke

...study of the problem of stroke prevention has been rewarded with an important grant. The results of the Adelaide University study could have enormous implications worldwide. "Almost everyone can think of a friend or relative who has suffered a stroke." The sobering remark from Dr Simon Koblar underlies the ur...

Rat study shows high-fat diet impairs concentration and memory

...the first time, they were to go and press it to be rewarded with a food pellet. When it appeared the next time, they were NOT to go and press it since they would not receive a pellet. The next time the lever appeared, they were to go and press it again to receive a food reward, and so forth. The interval dela...

Baboons can think abstractly, in the first study to show that a non-human, non-ape animal shares a central aspect of human intelligence

...cal icons (for example, all flowers). Researchers rewarded the baboons for selecting, from two choices, the array that showed the same relationships among pictures as the sample. Researchers wanted to see whether the baboons could learn this principle. Could the baboons perceive "sameness" even when its cue...

What remains to be discovered in Central American forests

...sk, especially in tropical lowlands. But they feel rewarded when local scientists, students and visiting scientists can identify plants near field sites and enhance our knowledge of ecology, physiology and geographic distribution of local organisms. It's one thing to have a collection, and it's another thing ...

Brain signal boosts as monkey nears reward

...fewer errors, with the fewest occurring during the rewarded trial. Electrical activity of about a third of more than 100 neurons, brain cells, monitored in the anterior cingulate progressively increased with reward expectancy. The progressive activity abated only when the reward was imminent and the expecta...

Sex, flounder and donuts

...ology for producing farm-reared flounder. They are rewarded with a market price that more than doubles that of hybrid striped bass, tilapia or trout. "This research brings us one step closer to realizing profitable, large-scale aquaculture operations for Southern flounder," says Ronald G. Hodson, director of ...

Dyslexic children`s brains operate more like those of normal readers following training

...had to stay completely still. Afterward, they were rewarded with Pokmon or baseball cards, and given a picture...aid. The program consisted of seven exercises that rewarded players when they answered questions correctly. For example, when a picture of a boy and a toy was s...

Obesity prevention program aimed at second graders

...cal activity and diabetes knowledge. Students were rewarded points for completing the challenges with their families. These points were converted to miles to complete a virtual trek from Fort Collins, CO to Disney World, Fl. Results Intervention showed a significant increase in diabetes knowledge among t...

Making sense of the genome

...rthologous gene into the ConSite tool, and will be rewarded with a list of probable regulators....

Name that tune

... depending on the song they heard. The researchers rewarded correct responses with food and turned the lights off to convey an incorrect response. Gentner's earlier research has shown that European starlings learn to recognize different songs by the individual pieces that comprise each song. "If you listen cl...

SUCCESS 2002 Student Contest award ceremony

...ility. The second prizewinner, Roberto Rusconi, is rewarded with a visit to the European Spaceport in Kourou, French Guiana, the Ariane launch site. The third prizewinner, Eric Belin de Chantemle, receives a laptop computer. The three prizewinning experiments dealt with the following scientific issues: - Fi...

Wanted: Innovations to feed the hungry

...arm surveys." Right now, research achievements are rewarded in one of two main ways. The oldest approach is t...hods, to reward innovations that are not now being rewarded through either kind of funding mechanism. Although it would take some time for new research to gene...

Parkinson's disease genetic study progresses with $8 million grant

...ved with the onset of Parkinson's disease has been rewarded with $8.26 million grant renewal from the National Institutes of Health. Indiana University School of Medicine will serve as the coordinating center for this grant as it did for the initial funding. The original grant for $6 million in 1998 initi...

Brightness discrimination in the dog

... brightness from the other. The correct choice was rewarded with a food treat. The dogs needed a far greater difference in brightness (known as the Weber fraction) than do humans to discriminate between two squares. For the Belgian shepherds the Weber fraction was 0.27; for the German shepherd it was 0.22. Al...

New study in moths shows insects not entirely ruled by instinct

...arted sucking for the food, even when they weren't rewarded with food. They also learned to not respond to the odor that was unrelated to food. "After learning, the way their nervous system responded to odor changed," he said. Now that he and his colleagues have documented these nervous system changes, their ...

Brain's reward circuitry revealed in procrastinating primates

...d approached, with the fewest occurring during the rewarded trial. Previous studies had also traced the monkey...ople with OCD work incessantly; even when they get rewarded they feel they must repeat the task. In mania, people will work feverishly for rewards that aren't w...

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