New research shows that phonics-based instruction can actually change brain activity in adults with dyslexia, resulting in significant improvements in reading. The findings from a collaborative study by Wake Forest University Baptist Medical Center and Georgetown University Medical Center were reported today in the journal Neuron. "With about 112 hours of phonic-based instruction, adults with dyslexia had significant improvements in reading and changes in brain activity while reading," said Lynn Flowers, Ph.D., senior researcher, from Wake Forest Baptist. "We know that dyslexia is not something children outgrow, and our findings suggest that it’s never too late for instruction to overcome this disability."
This was the first independent research study of whether phonics-based instruction is effective in adults with dyslexia and the first to measure whether the instruction would result in changes in brain activation. Dyslexia, or difficulty learning to read, has been associated with underactivity in areas of the brain that process language and "decode" words into groups of letters that are associated with meaningful sound patterns. The research involved 19 adults with dyslexia and 19 typical readers without dyslexia. The mean age of participants, who were mostly from the Winston-Salem area, was 42.5.
Dyslexia is the most common learning disability and affects about 10 percent of the population. "A huge number of adults have this problem, so it’s important to know whether something can be done to treat it," said Flowers, an assistant professor of neurology. "Adults with dyslexia can suffer significant financial and emotional consequences." The researchers used functional magnetic resonance imaging (fMRI) – which shows brain activation during a task – to verify whether adults with dyslexia process language differently from typical readers. The testing – performed while participants completed a phonics task – showed that several areas of the brain, predominantly on the left side, were less active in participants with dyslexia. These areas are associated with processing phonetic sounds and recognizing familiar objects. "This verified our findings and those of others and confirms that dyslexia is biologically based," said Flowers.
Karen Richardson | EurekAlert!
GLUT5 fluorescent probe fingerprints cancer cells
20.04.2018 | Michigan Technological University
Scientists re-create brain neurons to study obesity and personalize treatment
20.04.2018 | Cedars-Sinai Medical Center
University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...
Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.
Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...
In the fight against cancer, scientists are developing new drugs to hit tumor cells at so far unused weak points. Such a “sore spot” is the protein complex...
13.04.2018 | Event News
12.04.2018 | Event News
09.04.2018 | Event News
20.04.2018 | Physics and Astronomy
20.04.2018 | Interdisciplinary Research
20.04.2018 | Physics and Astronomy