Widening our perceptions of reading and writing difficulties
Learning to read and write are complex processes, which can be disrupted in various ways, leading to disorders known as dyslexia and dysgraphia. Two new studies, published in a recent special issue of Elsevier's Cortex (http://www.sciencedirect.com/science/journal/00109452) provide evidence of this variety, suggesting that effective treatment needs to take it into account.
A group of researchers from the Universities of Bari and Rome in Italy studied the reading and writing abilities of 33 Italian dyslexic children, comparing their performance with that of children with normal reading ability. Italian is an "orthographically transparent" language, meaning that letters tend to correspond to the same sounds, whereas many letters in the English alphabet change their sound from word to word (like the "c" in car and city). However, the new study showed that even in Italian, in which it is relatively straightforward to convert sounds into letters, children still have difficulties in spelling. Younger children with dyslexia generally performed worse than proficient readers; however, the older ones showed a more selective impairment when spelling words, suggesting that knowledge of vocabulary may be more important in spelling than previously thought.
The other study, from Tel Aviv University, Israel, provided the first systematic description of a type of reading disorder called "attentional dyslexia" in which children identify letters correctly, but the letters jump between words on the page, e.g., "kind wing" is read as "wind king". Teachers and neuropsychologists often notice that children substitute letters when reading, but in this type of dyslexia the substitutions are not caused by inability to identify letters or convert them to sounds; they result from migrations of letters between words. The findings showed that letters would mostly migrate to the same position in another word, so the first letter of one word would switch places with the first letter of another word. Awareness to the existence of this type of dyslexia is important, because it suggests a straightforward way to assist these children in reading - by presenting a single word at a time, e.g., with the help of a word-sized window cut in a piece of cardboard.
Provided by Elsevier
-
From lemons to lemonade: Reaction uses carbon dioxide to make carbon-based semiconductor,
28 comments
-
Thioridazine kills cancer stem cells in human while avoiding toxic side-effects of conventional cancer treatments,
3 comments
-
SpaceX private rocket blasts off for space station (Update),
41 comments
-
Climate scientists say they have solved riddle of rising sea,
30 comments
-
Scotland passes turbine test to harness tidal power,
40 comments
-
Potential Breakthrough in Seizure Control
7 hours ago
-
Popping/Cracked sternum.
11 hours ago
-
Which Mental Illness Encompasses This Problem?
12 hours ago
-
A question about drug tolerance
May 23, 2012
-
Poor nutrition leading to overeating?
May 23, 2012
-
Math and dyslexia?
May 21, 2012
- More from Physics Forums - Medical Sciences
More news stories
Family history of Alzheimer's affects functional connectivity
(HealthDay) -- Cognitively normal individuals with a family history of late-onset Alzheimer's disease (AD) may display lower resting state functional connectivity in the default mode network (DMN) of the brain, ...
Medicine & Health / Alzheimer's disease & dementia
1 hour ago |
not rated yet |
0
Transvaginal mesh op restores pelvic organ prolapse at price
(HealthDay) -- Transvaginal mesh (TVM) procedures are effective for anatomical restoration of pelvic organ prolapse (POP), but patients report a worsening of sexual function following surgery, according to ...
2 hours ago |
not rated yet |
0
Travel to high altitudes tied to Crohn's, colitis flare-ups
(HealthDay) -- People with inflammatory bowel disease, which includes Crohn's disease and colitis, may be at increased risk for flare-ups when they fly or travel to high altitudes for skiing or mountain climbing, ...
Medicine & Health / Inflammatory disorders
2 hours ago |
not rated yet |
1
|
Skp2 activates cancer-promoting, glucose-processing Akt
HER2 and its epidermal growth factor receptor cousins mobilize a specialized protein to activate a major player in cancer development and sugar metabolism, scientists report in the May 25 issue of Cell.
20 hours ago |
not rated yet |
0
|
Cancer may require simpler genetic mutations than previously thought
Chromosomal deletions in DNA often involve just one of two gene copies inherited from either parent. But scientists haven't known how a deletion in one gene from one parent, called a "hemizygous" deletion, can contribute ...
23 hours ago |
not rated yet |
0
|
SpotterRF debuts Radar Backpack Kit (w/ Video)
(Phys.org) -- SpotterRF has announced a special radar backpack kit designed to enhance situational awareness for soldiers on the ground. The company says its special radar is designed for warfighters as part ...
Oldest Jewish archaeological evidence on the Iberian Peninsula
German archaeologists of the Friedrich Schiller University Jena found one of the oldest archaeological evidence so far of Jewish Culture on the Iberian Peninsula at an excavation site in the south of Portugal, ...
Thousands of shellfish found dead in Peru
Thousands of crustaceans were found dead off the coast of Lima following the mystery mass death of dolphins and pelicans, the Peruvian Navy said Friday.
Astronomers seize last chance in lifetime for Venus Transit
Astronomers are gearing for one the rarest events in the Solar System: an alignment of Earth, Venus and the Sun that will not be seen for another 105 years.
Australia hails surprise super-telescope decision
Australia has hailed a surprise decision giving it a role in a radio telescope project aimed at revolutionising astronomy, vowing to draw on its decades of experience in space science.
SpaceX capsule has 'new car' smell, astronauts say
SpaceX's Dragon cargo vessel smells like a new car, said astronauts at the International Space Station after opening the hatches Saturday following the spacecraft's landmark mission to the orbiting lab.