lateral line sensing
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Robotic fish gain new sense: Navigate water currents and turbulence - 0 views
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based on biological principles
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Newborn infants learn while asleep; Study may lead to later disability tests - 0 views
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"We found a basic form of learning in sleeping newborns, a type of learning that may not be seen in sleeping adults
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Dana Byrd, a research affiliate in psychology at UF
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The findings give valuable information about how it is that newborns are able to learn so quickly from the world, when they sleep for 16 to 18 hours a da
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ested the learning abilities of sleeping newborns by repeating tones that were followed by a gentle puff of air to the eyelids.
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After about 20 minutes, 24 of the 26 babies squeezed their eyelids together when the tone was sounded without the puff of air.
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The brain waves of the 24 infants were found to change, providing a neural measurement of memory updating.
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While past studies find this type of learning can occur in infants who are awake, this is the first study to document it in their most frequent state, while they are asleep
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Learned eyelid movement reflects the normal functioning of the circuitry in the cerebellum, a neural structure at the base of the brain. This study's method potentially offers a unique non-invasive tool for early identification of infants with atypical cerebellar structure, who are potentially at risk for a range of developmental disorders, including autism and dyslexia, she said.
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Newborn infants' sleep patterns are quite different than those of older children or adults in that they show more active sleep where heart and breathing rates are very changeable," she said. "It may be this sleep state is more amenable to experiencing the world in a way that facilitates learning."
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Another factor is that infants' brains have greater neural plasticity, which is the ability for the neural connections to be changed
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CHCR: People: Christine C. Johnson, PhD, MPH - 0 views
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Immunoglobulin E (IgE) Defined | AAAAI - 0 views
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Babies born by C-section at risk of developing allergies - 0 views
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Henry Ford Hospital study suggests that C-section babies are susceptible to developing allergies by age two.
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Christine Cole Johnson, Ph.D., MPH, chair of Henry Ford Department of Health Sciences and the study's lead author.
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C-section babies have a pattern of "at risk" microorganisms in their gastrointestinal tract that may make them more susceptible to developing the antibody Immunoglobulin E, or IgE,
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Video games help patients and health care providers - 0 views
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n the Perspectives article, the team describes therapeutic video games, including their own Patient Empowerment Exercise Video Game (PE Game), an activity-promoting game specifically designed to improve resilience, empowerment, and a "fighting spirit" for pediatric oncology patients. The researchers also looked at other games that have been shown to help patients with several chronic diseases.
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A new publication by researchers from the University of Utah, appearing in the Sept 19 issue of the journal Science Translational Medicine, indicates video games can be therapeutic and are already beginning to show health-related benefits.
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New Studies Reveal Infants' World of Vision - 0 views
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eye-tracking technology has been around for years, it is now small enough to be used to examine how toddlers view their environment.
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New York University led by Karen Adolph
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Finn, an 8.5-month-old toddler, was among the participants in this project. She was being coaxed to wear the eye-tracking headgear, which consists of two cameras - one that's looking out on the scene to get the baby's perspective, and another that's looking at the eye to track the movement of the pupil. A computer analyzed both camera views to determine exactly where Finn was looking.
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Jason Babcock is the founder of Positive Science, a New York company that has developed eye-tracking devices over the last decade
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John Franchak, a doctoral student at NYU and leader of the project
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infants would be looking at their mothers constantly because that was common knowledge within [the field of] social cognition with infants." But in a room full of toys scattered everywhere and obstacles to climb on and crawl on, the infants only looked toward their mothers about half the time. And even if they did look at their mothers, they looked at their mothers' faces only about 15 percent of the time.
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Another interesting finding was that while infants look directly at an obstacle before walking onto or over it, 75 percent of the time they don't always have to.
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According to Franchak, down the line it could offer more research applications that could help infants with developmental disorders, medical research and applied research.
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Infants learn to look and look to learn | Iowa Now - The University of Iowa - 0 views
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John Spencer, a psychology professor at the UI and a co-author on the paper published in the journal Cognitive Science.
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mathematical model that mimics, in real time and through months of child development
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“The model can look, like infants, at a world that includes dynamic, stimulating events that influence where it looks. We contend (the model) provides a critical link to studying how social partners influence how infants distribute their looks, learn, and develop,”
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The model examines the looking-learning behavior of infants as young as 6 weeks through one year of age, through 4,800 simulations at various points in development involving multiple stimuli and tasks. As would be expected, most infants introduced to new objects tend to look at them to gather information about them; once they do, they are “biased” to look away from them in search of something new
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an infant will linger on something that’s being shown to it for the first time as it learns about it, and that the “total looking time” will decrease as the infant becomes more familiar with it.
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infants who don’t spend a sufficient amount of time studying a new object—in effect, failing to learn about it and to catalog that knowledge into memory—don’t catch on as well, which can affect their learning later on.
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Sammy Perone, a post-doctoral researcher in psychology at the UI and corresponding author on the pape
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To examine why infants need to dwell on objects to learn about them, the researchers created two different models. One model learned in a "responsive" world: Every time the model looked away from a new object, the object was jiggled to get the model to look at it again. The other model learned in a "nonresponsive" world: when this model looked at a new object, objects elsewhere were jiggled to distract it. The results showed that the responsive models“learned about new objects more robustly, more quickly, and are better learners in the end,
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infants can familiarize themselves with new objects, and store them into memory well enough that when shown them again, they quickly recognized them
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“if that’s the case, we can manipulate and change what the brain is doing” to aid infants born prematurely or who have special needs, Perone adds.
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Why Smart People Are Stupid : The New Yorker - 0 views
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intelligence seems to make things worse. The scientists gave the students four measures of “cognitive sophistication.” As they report in the paper, all four of the measures showed positive correlations, “indicating that more cognitively sophisticated participants showed larger bias blind spots.”
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smarter people (at least as measured by S.A.T. scores) and those more likely to engage in deliberation were slightly more vulnerable to common mental mistakes.
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Education also isn’t a savior; as Kahneman and Shane Frederick first noted many years ago, more than fifty per cent of students at Harvard, Princeton, and M.I.T. gave the incorrect answer to the bat-and-ball question
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The problem with this introspective approach is that the driving forces behind biases—the root causes of our irrationality—are largely unconscious, which means they remain invisible to self-analysis and impermeable to intelligence
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A bat and ball cost a dollar and ten cents. The bat costs a dollar more than the ball. How much does the ball cost?
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Babies Learn To Talk By Reading Lips, New Research Suggests - 0 views
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developmental psychologist David Lewkowicz of Florida Atlantic University
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6 months, babies begin shifting from the intent eye gaze of early infancy to studying mouths when people talk to them.
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first birthdays, babies start shifting back to look you in the eye again
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University of Iowa psychology professor Bob McMurray, who also studies speech development.
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quality face-time with your tot is very important for speech development – more than, say, turning on the latest baby DVD.
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Other studies have shown that babies who are best at distinguishing between vowel sounds like "ah" and "ee" shortly before their first birthday wind up with better vocabularies and pre-reading skills by kindergarten.
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So he and doctoral student Amy Hansen-Tift tested nearly 180 babies, groups of them at ages 4, 6, 8, 10 and 12 months. How? They showed videos of a woman speaking in English or Spanish to babies of English speakers. A gadget mounted on a soft headband tracked where each baby was focusing his or her gaze and for how long.
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They found a dramatic shift in attention: When the speaker used English, the 4-month-olds gazed mostly into her eyes. The 6-month-olds spent equal amounts of time looking at the eyes and the mouth. The 8- and 10-month-olds studied mostly the mouth.
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at 6 months, babies begin observing lip movement, Lewkowicz says, because that's about the time babies' brains gain the ability to control their attention rather than automatically look toward noise.
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Duke University cognitive neuroscientist Greg Appelbaum
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Understanding General Canine Genetics - 0 views
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In the dog, there are 78 chromosomes existing of 39 matched pairs which make up the dog’s “genotype”. On the other hand, the dog’s “phenotype” is what the animal actually looks like and this can be influenced by both environmental and developmental factors. For example, a dog’s adult size is partially determined by his genotype but is also influenced by such factors as health and nutrition as a puppy.
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Each gene provides the genetic instruction to make one protein or control one function. For example, the genes tell the cell to produce a certain chemical or to produce a specific characteristic like blue eyes.
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Human Vision Inadequate For Research On Bird Vision - 0 views
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Through evolution, our colour vision has developed from a more primitive version.
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This is what made me look up about sight evolution in the first place. I wondered what colors that we cant see in the electromagnetic spectrum would look like, and perhaps humans used to be able to see more or different colors than we do now in earlier stages of our evolution. I then asked myself, what if the colors we see are the ones we need to survive? Maybe it is possible that those with a mutation that widened or altered the "visible" spectrum were not fit for survival long ago, and what we see now is the result of evolution of our species.
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Birds evolved ultraviolet vision several times - 0 views
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Ultraviolet vision evolved at least eight times in birds
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All of these are due to single nucleotide changes in the DNA.
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Uppsala University and the Swedish University of Agricultural Sciences
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nucleotide
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New radiation treatment significantly increases survival rate, researchers find - 0 views
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naturally occurring molecule found in coffee and blueberries
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Charles R. Yates, Pharm.D., Ph.D., and colleagues Duane Miller, Ph.D., and Waleed Gaber, Ph.D., from the University of Tennessee Health Science Center and Baylor College of Medicine
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Sleep lessens the effect genes have on weight - USATODAY.com - 0 views
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"The less sleep you get, the more your genes contribute to how much you weigh. The more sleep you get, the less your genes determine how much you weigh,"
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•Those who slept longer at night had lower body mass index (BMI), based on weight and height, than those sleeping less.
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•For twins averaging more than nine hours of sleep, genetic factors accounted for about 32% of weight variations; for those sleeping less than seven hours, genetic factors accounted for 70% of weight variations. For those sleeping seven to nine hours, 60% of the variation was due to genetic factors. Other factors that affect BMI include environmental ones.
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