Rhesus monkeys reason about perspectives of others in obtaining food
... experiments varied from one person looking at the monkey and the other with their back turned, to one person having their eyes covered with cardboard and the other with only their mouth covered with cardboard. "What we are interested in is whether monkeys can reason about the mental states of others," sai...Study: Two brain systems regulate how we call for help
...Researchers measured the frequency with which each monkey called out, and then scanned each animal's brain w...early 80 percent accuracy how much each individual monkey called for help," says Kalin. The researchers were somewhat surprised to find reduced activity in th...Brain synapse formation linked to proteins, Stanford study finds
... higher levels in adult human brains than in adult monkey brains, possibly suggesting a key difference in the two animals' ability to form new synapses. Barres said the thrombospondins they studied are just two of five related proteins. So far it hasn't been possible to eliminate all five thrombospondins in...New way to block pox shows promise in lab study
...scientists say their finding, made using lab-grown monkey kidney cells and a mouse model of smallpox infecti...d his team added an experimental drug, CI-1033, to monkey kidney cells that had been infected with smallpox virus. CI-1033, which is being developed by Pfizer...Monkey 'pay-per-view' study could aid understanding of autism
...earchers could precisely measure how much reward a monkey would "pay" to see which images. The researchers f...ount of reward to see an image of a higher-ranking monkey or of female hindquarters. In contrast, the monkeys had to be "paid" more juice to view lower-rankin...Researchers hope monkeys can provide new insights into depression
...nd less time being groomed a friendly behavior by monkey standards and spend more time alone. Previous research has shown that they have increased heart rates, more of the stress hormone cortisol and more cardiovascular disease than dominant monkeys. Depressive disorders affect about 19 million Americans...Were zoo workers infected with cancer-causing animal virus?
Evidence of exposure to a monkey virus possibly related to cancer has been found in the blood of North American zoo workers, according to a study in the December 15 issue of The Journal of Infectious Diseases, now available online. The virus, a polyomavirus known as simian virus 40 ...New protein 'stop sign' alters blood vessel growth
...chers inserted the plexin-D1 protein into cultured monkey cells that don't naturally contain it. They discovered that the Sema3E protein bound tightly to the monkey cells and created a signal. Surprisingly, the two proteins didn't need a third that is known to work...Researchers develop neural prosthesis allowing a monkey to feed self using only its brain
... University of Pittsburgh have demonstrated that a monkey can feed itself with a robotic arm simply by using...der and elbow and a simple gripper that allows the monkey to grasp and hold food while its own arms are restrained. The arm is wired into the monkey's brain a...Scientists detail latest advances in development of prosthetic devices for paralyzed
...osthetic hand. And other scientists have trained a monkey to use a robotic arm controlled by its own thought...earchers implanted just one electrode in a macaque monkey to record LFPs in the parietal cortex in each of 24 experiments. The parietal cortex is a brain area...PITT, OHSU: When early life stress occurs determines its impact later
...ying the impacts of early childhood stress. Infant monkey behavioral changes caused by stress are very similar to those witnessed in human infants. In addition, studies using monkeys allow researchers to control factors such as the timing and duration of stress exposure, something not possible in human stud...Scientists reveal significant behavioral impacts of early life stress, study therapies
...ying the impacts of early childhood stress. Infant monkey behavioral changes caused by stress are very similar to those witnessed in human infants. In addition, studies using monkeys allow researchers to control factors such as the timing and duration of stress exposure, something not possible in human stud...Mothers have brains primed for care
...infants were 25-75 days old, an experienced mother monkey was introduced, either during the second or third month after birth. Meanwhile, a fourth control group of young monkeys were separated from their mothers at 6 months old. Both groups were observed for a year. Cameron's group again found that the mon...The brain science behind 'A beautiful mind'
...played the role of the employer, and the human and monkey participants played the employee. Overall, humans played the game hundreds of times, and the rhesus monkeys played it thousands of times; humans were rewarded with money, and the monkeys were rewarded with fruit juice each time they "won" a round o...Monkey virus may hold clue for development of common blood cancer
...ymphoma found that half of them show evidence of a monkey virus DNA that may have originated from contaminat...rchers. "We found a strong association between the monkey virus DNA and non-Hodgkin's lymphoma in this study, and now the question is whether the virus DNA is...Myosin mutant points to human origins
...e of muscle types in the readily available macaque monkey and humans. In macaques, they found the MYH16 protein was only made in a group of related muscles in the head, those involved principally with chewing and biting. In humans, they found that messenger RNA, which translates the genetic code into workad...Human studies show feasibility of brain-machine interfaces
...fference between the initial human studies and the monkey studies is that recording in the human patients were made from electrodes inserted deeper into the brain, in subcortical structures, rather than the cortical surface. "This shows that one can extract information not only from cortical areas, but from...OHSU scientists advance fertility preservation procedure
...alled ovarian tissue transplant. The female rhesus monkey was born at the OHSU Oregon National Primate Resea...n and implanted the resulting embryos in surrogate monkey mothers. Following the normal five-month monkey gestation period, a healthy female infant was born."...Effectiveness of safer smallpox vaccine demonstrated against monkeypox
...earchers divided 24 cynomologus monkeys (a type of monkey found in Southeast Asia, Borneo and the Philippines) into four groups of six. Group one received two MVA injections--one at the start of the study and the second two months later. Group two received the MVA vaccine at the start of the study and the D....... "We're clearly mimicking the biochemistry in the monkey that we have seen in mice. Vaccinating with amyloi... There was no evidence of inflammation in the monkey brains six months later. According to Dr. Gandy, researchers in the late 1990s created a...