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New Study to Test Unusual Hypothesis on Beta Brainwaves

By Guest PostDecember 4, 2011Sciencebasal ganglia, beta, beta brainwaves, beta oscillations, brown university, christopher moore, cortex, david orenstein, hypothesis, key brain circuit, model, moore and jones, neurons, neuroscientists, optogenetics, parkinsonian symptoms, parkinsons disease, physical brain, predictions, sensory information, somatosensory system, stephanie jones, thalamocortical circuit, thalamus, touch, touch perception circuit

Beta oscillations are tightly linked to Parkinson’s disease and the ability to process sensory information, such as touch. Two neuroscientists have brought their collaboration to Brown University and won funding from the National Science Foundation to see if they can finally provide a definitive, if unorthodox, explanation for beta brainwaves.

Before she could seek to convince the world that her computer model of a key brain circuit explains a fundamental, 80-year-old mystery of neuroscience with potential relevance to Parkinson’s disease, Stephanie Jones sought to convince Christopher Moore. The new Brown neuroscience professors are now close collaborators, but when they first started talking about the beta oscillations of the cortex, Moore thought Jones was plain wrong, if not a bit nuts. (more…)

Newly Found Dwarf Galaxies Could Help Reveal the Nature of Dark Matter

By Guest PostNovember 12, 2011Scienceandromeda, andromeda xxviii and xxix, astronomers, colin slater, dwarf galaxies, dwarf galaxies around andromeda, dwarf spheroidal galaxy 200 kpc from andromeda, earth, eric bell, gemini north telescope, gravitational effects, gravity, hawaii, how matter relates to dark matter, hypothesis, invisible substance, light years, night sky, predictions, satellites of andromeda, sloan digital sky survey, spiral galaxy, star counting technique, telescopes, understanding of dark matter, universe mass, university of michigan

ANN ARBOR, Mich.— In work that could help advance astronomers’ understanding of dark matter, University of Michigan researchers have discovered two additional dwarf galaxies that appear to be satellites of Andromeda, the closest spiral galaxy to Earth.

Eric Bell, an associate professor in astronomy, and Colin Slater, an astronomy Ph.D. student, found Andromeda XXVIII and XXIX—that’s 28 and 29. They did it by using a tested star-counting technique on the newest data from the Sloan Digital Sky Survey, which has mapped more than a third of the night sky. They also used follow-up data from the Gemini North Telescope in Hawaii. (more…)

Glow-in-the-Dark Millipede Says ‘Stay Away’

By Guest PostSeptember 28, 2011Nature, Scienceaequorea victoria, bioluminescent millipedes, charity hall, clay models, dan papaj, enzymatic reaction, genus motyxia, giant sequoia national monument in california, glowing and non glowing individuals, grasshopper mouse, green fluorescent protein, hypothesis, jellyfish, metalsmith, millipedes, motyxia, mountain regions in california, multi legged invertebrates, nocturnal predators, onychomys torridus, paul marek, santa monica mountains, southern sierra nevada mountains, tehachapi mountains, vegetarians, wendy moore

*The world’s only bioluminescent millipedes use their glow as a warning signal to nocturnal predators, a UA-led research team has discovered.*

As night falls in certain mountain regions in California, a strange breed of creepy crawlies emerges from the soil: millipedes that glow in the dark. The reason behind the glowing secret has stumped biologists until now.

Paul Marek, a research associate in the University of Arizona’s department of entomology and Center for Insect Science, and his team now provide the first evidence gained from field experiments of bioluminescence being used as a warning signal. They discovered that the nightly glow of millipedes belonging to the genus Motyxia helps the multi-legged invertebrates avoid attacks by predators. (more…)

Language Patterns Are Roller-Coaster Ride During Childhood Development

By Guest PostMarch 1, 2011Scienceaae, african american children, african american english, childhood, ebb and flow, hypothesis, janneke van hofwegen, language, roller coaster effect, roller coaster ride, vernacular language patterns, walt wolfram

Why, and when, do we learn to speak the way that we do? Research from North Carolina State University on African-American children presents an unexpected finding: language use can go on a roller-coaster ride during childhood as kids adopt and abandon vernacular language patterns.

“We found that there is a ‘roller-coaster effect,’ featuring an ebb and flow in a child’s use of vernacular English over the course of his or her language development,” says Dr. Walt Wolfram, William C. Friday Distinguished University Professor of English Linguistics at NC State and co-author of several recent papers describing the research. “This was totally unanticipated.” Vernacular English is defined here as culturally specific speech patterns that are distinct from standard English; in this case, the vernacular is African-American English (AAE). (more…)

Tag Archives: hypothesis

New Study to Test Unusual Hypothesis on Beta Brainwaves

Newly Found Dwarf Galaxies Could Help Reveal the Nature of Dark Matter

Glow-in-the-Dark Millipede Says ‘Stay Away’

Language Patterns Are Roller-Coaster Ride During Childhood Development