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Study shows how bilinguals switch between languages - 0 views

  • Individuals who learn two languages at an early age seem to switch back and forth between separate "sound systems" for each language, according to new research
  • The research
  • addresses enduring questions in bilingual studies about how bilingual speakers hear and process sound in two different languages.
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  • "A lot of research has shown that bilinguals are pretty good at accommodating speech variation across languages, but there's been a debate as to how,"
  • lead author Kalim Gonzales, a psychology doctoral student at the University of Arizona
  • two views: One is that bilinguals have different processing modes for their two languages—they have a mode for processing speech in one language and then a mode for processing speech in the other language
  • Another view is that bilinguals just adjust to speech variation by recalibrating to the unique acoustic properties of each language."
  • Gonzales's research supports the first view—that bilinguals who learn two languages early in life learn two separate processing modes, or "sound systems
  • The study looked at 32 Spanish-English early bilinguals, who had learned their second language before age 8.
  • Participants were presented with a series of pseudo-words beginning with a 'pa' or a 'ba' sound and asked to identify which of the two sounds they heard
  • 'pa' and 'ba' sounds exist in both English and Spanish, how those sounds are produced and perceived in the two languages varies subtly
  • 'ba,' for example, English speakers typically begin to vibrate their vocal chords the moment they open their lips
  • Spanish speakers begin vocal chord vibration slightly before they open their lips and produce 'pa' in a manner similar to English 'ba.'
  • English-only speakers might, in some cases, confuse the 'ba' and 'pa' sounds they hear in Spanish
  • most people think about differences between languages
  • different words and they have different grammars
  • at their base languages use different sounds
  • One of the reasons it sounds different when you hear someone speaking a different language is because the actual sounds they use are different
  • someone might sound like they have an accent if they learn Spanish first is because their 'pa' is like an English 'ba,' so when they say a word with 'pa,' it will sound like a 'ba' to an English monolingual
  • For the study, the bilingual participants were divided into two groups. One group was told they would be hearing rare words in Spanish, while the other was told they would be hearing rare words in English
  • Both groups heard audio recordings of variations of the same two words—bafri and pafri—which are not real words in either language
  • Each group heard the same series of words, but for the group told they were hearing Spanish, the ends of the words were pronounced slightly differently, with the 'r' getting a Spanish pronunciation
  • Participants perceived 'ba' and 'pa' sounds differently depending on whether they were told they were hearing Spanish words, with the Spanish pronunciation of 'r,' or whether they were told they were hearing English words, with the English pronunciation of 'r.'
  • when you put people in English mode, they actually would act like English speakers, and then if you put them in Spanish mode, they would switch to acting like Spanish speakers
  • hearing the exact same 'ba's and 'pa's would label them differently depending on the context
  • When the study was repeated with 32 English monolinguals, participants did not show the same shift in perception; they labeled 'ba' and 'pa' sounds the same way regardless of which language they were told they were hearing
  • that lack of an effect
  • provided the strongest evidence for two sound systems in bilinguals
  • true primarily for those who learn two languages very young
  • If you learn a second language later in life, you usually have a dominant language and then you try to use that sounds system for the other language, which is why you end up having an accent
Mars Base

Google sets out to save dying languages - 0 views

  • In an alliance with scholars and linguists, the Internet powerhouse on Wednesday introduced an Endangered Languages Project website where people can find, share, and store information about dialects in danger of disappearing.
  • diverse group of collaborators have already begun to contribute content ranging from 18th-century manuscripts to modern teaching tools like video and audio language samples and knowledge-sharing articles
  • endangeredlanguages.com is designed to let users upload video, audio, or text files and encourages them to memorialize recordings of rare dialects.
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  • Only half of the approximately 7,000 languages spoken today are expected to survive past the end of this century
  • Technology can strengthen these efforts, by helping people create high-quality recordings of their elders (often the last speakers of a language),
  • Google's philanthropic arm seeded the project, leadership of which will be ceded in coming months to the First People's Cultural Council and the Institute for Language Information and Technology at Eastern Michigan University.
  • Endangered Languages Catalog (ELCat), sponsored by the University of Hawaii, will also be contributing to the project.
Mars Base

Reading wordless storybooks to toddlers may expose them to richer language - 0 views

  • Researchers
  • have found that children hear more complex language from parents when they read a storybook with only pictures compared to a picture-vocabulary book
  • often, parents dismiss picture storybooks, especially when they are wordless, as not real reading or just for fun
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  • these findings show that reading picture storybooks with kids exposes them to the kind of talk that is really important for children to hear, especially as they transition to school
  • a graduate student, recorded 25 mothers while they read to their toddlers both a wordless picture storybook and a vocabulary book with pictures
  • moms in our study significantly more frequently used forms of complex talk when reading the picture storybook to their child than the picture vocabulary book
  • especially interested in looking at the language mothers use when reading both wordless picture storybooks and picture vocabulary books
  • to see if parents provided extra information to children like relating the events of the story to the child's own experiences or asking their child to make predictions.
  • The results of the study are significant for both parents and educators because vocabulary books are often marketed as being more educationa
  • even short wordless picture books provide children with exposure to the kinds of
  • language that they will encounter at school
  • lay the foundation for later reading developmen
Mars Base

British researchers create robot that can learn simple words by conversing with humans ... - 0 views

  • In an attempt to replicate the early experiences of infants, researchers in England have created a robot that can learn simple words in minutes just by having a conversation with a human.
  • three-foot-tall robot, named DeeChee, was built to produce any syllable in the English language. But it knew no words at the outset of the study, speaking only babble phrases like "een rain rain mahdl kross."
  • human volunteer attempted to teach the robot simple words for shapes and colors by using them repeatedly in regular speech.
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  • At first, all DeeChee could comprehend was an unsegmented stream of sounds
  • had been programmed to break up that stream into individual syllables and to store them in its memory
  • words were ranked according to how often they came up in conversation
  • words like "red" and "green" were prized.
  • designed to recognize words of encouragement, like "good" and "well done,"
  • That feedback helped transform the robot's babble into coherent words, sometimes in as little as two minutes.
  • repetition of sounds helps infants learn a language, then it's not surprising that our first words are often mainstays like "mama" and "dada."
  • words that form the connective tissue of our language - words like "at," "with" and "of" - are spoken in hundreds of different ways, making them difficult for newbies to recognize
  • more concrete words like "house" or "blue" tend to be spoken in the same way nearly every time
  • study relied on the human volunteers speaking naturally
  • DeeChee was programmed to smile when it was ready to pay attention to its teacher and to stop smiling and blink when it needed a break
  • designed to have a gender-neutral appearance, humans tended to treat it as a boy
Mars Base

Numbers Games Devised to Aid People with "Dyscalculia": Scientific American - 0 views

  • By developing treatments for dyscalculia
  • to test competing theories about the cognitive basis of numeracy. If,
  • dyscalculia is at heart a deficiency of basic number sense and not of memory, attention or language, as others have proposed, then nurturing the roots of number sense should help dyscalculics
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  • It may be the case that what these kids need is just much more practice than the rest of us
  • starts with a game involving a number line
  • “What is the number that is right in the middle between 200 and 800? Do you know it?
  • A classic sign of dyscalculia is difficulty in grasping the place-value system,
  • A soft computer voice tells Christopher to “find the number and click it
  • The game involves zooming in and zooming out to rescale the number line
  • talks through each move — a strategy that Babtie encourages
  • but it takes him more than a minute to locate 210. His classmates, meanwhile, are learning to multiply two-digit numbers.
  • Butterworth
  • made his name probing obscure speech and language disorders
  • tested 31 eight- and nine-year-old children who were near the bottom of their class in mathematics but did well enough in other subjects.
  • Compared with normal children and those with dyslexia, the dyscalculic children struggled on almost every numerical task, yet were average on tests of reading comprehension, memory and IQ.
Mars Base

NASA - Robonaut 2 - 0 views

  • Robonaut 2 completed its initial checkouts on board the International Space Station Wednesday, February 15, 2012
  • history with the first human/robotic handshake to be performed in space
  • message sent down in sign language. “Hello World,” the robot signed in American sign language
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  • launched to the International Space Station almost a year ago
Mars Base

Babies Lip-read Before Talking - Science News - 0 views

  • infants start babbling at around age 6 months in preparation for talking
  • shift from focusing on adults’ eyes to paying special attention to speakers’ mouths
  • tots become able to blurt out words and simple statements at age 1, they go back to concentrating on adults’ eyes
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  • babbling babies match up what adults say with how they say
  • budding talkers can afford to look for communication signals in a speakers’ eyes
  • tested 179 infants from English-speaking families at age 4, 6, 8 or 12 months
  • devices tracked where babies looked when shown videos of women speaking English or a foreign language
  • also report that on average, infants’ pupils increasingly dilated between ages 8 months and 1 year in response to Spanish speakers, a sign of surprise at encountering unfamiliar speech
  • By 2 years of age, children with autism avoid eye contact and focus on speakers’ mouths
  • new findings raise the possibility of identifying kids headed for this developmental disorder even earlier
  • hasn’t yet been demonstrated that children who continue to look at the mouths of native-language speakers after age 1 develop autism or other communication problems more frequently than those who shift to looking at speakers’ eyes
Mars Base

Numbers Games Devised to Aid People with "Dyscalculia": Scientific American - 0 views

  • The study confirmed for Butterworth that developmental forms of dyscalculia are the result of basic problems in comprehending numbers and not in other cognitive faculties
  • determining exactly what those problems are would prove challenging
  • approximate number sense, distinguishes larger quantities from smaller ones, be they dots flashing on a screen or fruits in a tree.
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  • A second ancient number system allows humans and many other animals to instantly and precisely recognize small quantities, up to four.
  • People who are poor at distinguishing approximate quantities do badly in maths, suggesting that the approximate-number system is crucial.
  • some work shows that dyscalculics are poor at recognizing small numbers, suggesting that this ability is also fundamental to numeracy
  • scans of people with dyscalculia suggest that their intraparietal sulci are less active when processing numbers and less connected with the rest of the brain compared with numerate children and adults.
  • views such results as consequences, not causes, of the poor numerical abilities that characterize dyscalculia.
  • Approximation and a sense of small numbers, while critical, are not enough for humans to precisely grasp large numbers,
  • calls this 'numerosity coding': the understanding that things have a precise quantity associated with them, and that adding or taking things away alters that quantity.
  • argues that another cognitive capacity is even more fundamental to number sense
  • Language, he argues, empowers humans to integrate the two number systems — giving them the ability to intuitively distinguish, say, 11,437 from 11,436.
  • young children who could not yet count past two nonetheless understood that adding pennies to a bowl containing six somehow altered its number, even if the children couldn't say exactly how.
  • If numerosity coding is fundamental, it predicts that dyscalculics
  • struggle to enumerate and manipulate all numbers, large and small.
  • hopes that, by honing this ability, the Number Sense games will help support his research ideas
Mars Base

Eyeglasses read to the blind (w/ Video) - 0 views

  • The Eyetalk
  • initially conceived for a student competition in social entrepreneurship, has been hailed by venture investors as a potentially breakthrough product that could make a difference for disabled people worldwide
  • By using a pair of eyeglasses and lightweight components, Eyetalk will allow a blind user to access printed material while walking around a store or library, which now requires bulkier, more expensive equipment
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  • Eyetalk
  • is designed to be portable, affordable, and operate without requiring an Internet connection
  • Future versions of Eyetalk will target a global market and enable users to hear information aloud in one of many languages.
  • early prototype, known as the FreedomLens, was one of 16 semi-finalists chosen from 29 nations to present at the 2013 Global Social Entrepreneurship Competition (GSEC), February 25-30 at the University of Washington's Foster School of Business in Seattle
  • The project began with a challenge issued by
  • faculty member Seema Pissaris, a successful entrepreneur who founded Games Trader
  • Last fall, Pissaris urged students in several of her classes to think about developing a social entrepreneurship project
Mars Base

Curiosity's Sundial Carries a Message of Hope - 0 views

  • Curiosit
  • carries a very low-tech instrument: a sundial, which can be used to determine the position of the Sun in the sky and the season on Mars just like they do here on Earth
  • Curiosit
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  • also has additional color calibration tools for the rover’s Mastcam
  • ; in addition to the words “Mars 2012″ and “To Mars, To Explore” around its top bezel,
  • along its edge
  • Along with line drawings and the word for “Mars” in sixteen languages, Curiosity’s sundial bears the following inscription
  • “For millennia, Mars has stimulated our imaginations. First, we saw Mars as a wandering star, a bringer of war from the abode of the gods. In recent centuries, the planet’s changing appearance in telescopes caused us to think that Mars had a climate like the Earth’s. Our first space age views revealed only a cratered, Moon-like world, but later missions showed that Mars once had abundant liquid water. Through it all, we have wondered: Has there been life on Mars? To those taking the next steps to find out, we wish a safe journey and the joy of discovery.”
Mars Base

Bionic retina runs on laser power - 0 views

  • tiny implant that is inserted into the eye and attached to the retina in a minimally invasive procedure no more complicated than conventional cataract surgery
  • consists of photodetectors, microelectrodes and electronic circuitry that act together to replace the eye’s natural photoreceptors that have been damaged by AMD and feed visual information to the brain
  • photoreceptors in a healthy retina convert light into a series of electrical signals which are transmitted to the brain via complex neural pathways
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  • AMD, the photoreceptors do not function, which prevents the brain from receiving these signals from the eyes
  • bio-retina implant is essentially a combined imaging circuit and neural interface which is glued rather than sutured to a patient’s macula
  • area of the retina responsible for high-resolution central vision
  • Measuring 3 x 4 mm and 1 mm thick, the implant is designed to capture light through the normal optical track of the eyeball and stimulate neurons to transmit information to the brain, essentially restoring the function of the damaged photoreceptors
  • Light incident on the implant is collected by an array of CMOS pixels
  • first-generation bio-retina will use an array of 600 pixels, although the aim is to increase this to 5000 pixels in future generations
  • Nano Retina has dedicated a substantial amount of time developing a proprietary algorithm that translates the received visual information and image into the neuron language
  • translating circuitry that discriminates 100 gray-scale levels and responds to varying light levels. It is a sophisticated process
  • implant uses an array of micro-electrodes that first penetrate into the retina, then connect closely to the neurons and thereafter transmit the information. The goal is that every pixel will connect to a neuron, so that every pixel in the array would use a micro-electrode
  • neurons must be stimulated electrically
  • the bio-retina implant also requires a source of electrical power
  • Patients who undergo surgery to implant a bio-retina will need to wear a special set of glasses
  • glasses feature a built-in battery and an infrared diode laser. “The infrared laser light is transmitted into the eye and captured by a miniature photovoltaic cell on the bio-retina
  • harvests the energy, which in turn powers the electronic circuitry. Our goal is for the imager and the electronics to consume no more than 1mW
Mars Base

Earth Bids China's Yutu Moon Rover Farewell Forever! - 0 views

  • The apparently unfortunate and sad breaking news was just reported today in an ultra brief dispatch by the English language version of Chinadaily – with the headline “Loss of lunar rover.”
  • thought that Yutu froze to death due to a pre-hibernation mechanical malfunction and failed to wake up and communicate with China’s mission controllers
  • Beijing on Monday, Feb. 10, when daylight returned to the rovers Moon landing site at Mare Imbrium (Sea of Rains) at the start of what would have been Lunar Day 3 for the mission.
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  • The cause of the pre-hibernation malfunction may perhaps be traced back to a buildup of abrasive lunar dust, but no one knows at this time.
Mars Base

'Signglasses' System Helps Deaf Literacy - 0 views

  • Students at Brigham Young University recently launched the "Signglasses"
  • project in an attempt to develop a better system of sign language for narration through several types of glasses, including Google Glass.
  • Two of professor
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  • who are also deaf, signed up for the project just as the national Science Foundation funded the research
  • The team tested their system during a field trip visit to the Jean Messieu School for the deaf
  • Research from one of the tests revealed that the signer should be displayed in the center of the lens
  • deaf participants could look straight through the signer as they focused on a planetarium show.
  • This was particularly surprising for researchers as they believed that deaf students would prefer to have a video displayed at the top, as Google Glass normally presents itself
  • Researchers hope that with further studies, this tool can also be used for literary guidance
  • One idea is when you're reading a book and come across a word that you don't understand, you point at it, push a button to take a picture
Mars Base

Google Glass adaptation opens the universe to deaf students - 0 views

  • the only two deaf students to ever take Professor Jones’ computer science class
  • signed up just as the National Science Foundation funded Jones’ signglasses research
  • “Having a group of students who are fluent in sign language here at the university has been huge,
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  • Professor Mike Jones
  • Jones
  • Jones will publish the full results of their research in June at Interaction Design and Children
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