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Lexical and nonlexical processing in developmental dyslexia: a case for different resources and different impairments.
Cogn Neuropsychol. 2008 Sep;25(6):798-830
Authors: Romani C, Di Betta AM, Tsouknida E, Olson A
In a group of adult dyslexics word reading and, especially, word spelling are predicted more by what we have called lexical learning (tapped by a paired-associate task with pictures and written nonwords) than by phonological skills. Nonword reading and spelling, instead, are not associated with this task but they are predicted by phonological tasks. Consistently, surface and phonological dyslexics show opposite profiles on lexical learning and phonological tasks. The phonological dyslexics are more impaired on the phonological tasks, while the surface dyslexics are equally or more impaired on the lexical learning tasks. Finally, orthographic lexical learning explains more variation in spelling than in reading, and subtyping based on spelling returns more interpretable results than that based on reading. These results suggest that the quality of lexical representations is crucial to adult literacy skills. This is best measured by spelling and best predicted by a task of lexical learning. We hypothesize that lexical learning taps a uniquely human capacity to form new representations by recombining the units of a restricted set.
PMID: 18781498 [PubMed - in process]
(Source: Cognitive Neuropsychology)
Written by Cognitive Neuropsychology · Filed Under Dyslexia | Comments Off
Poor performance on serial visual tasks in persons with reading disabilities: impaired working memory?
J Learn Disabil. 2008 Sep-Oct;41(5):437-50
Authors: Ram-Tsur R, Faust M, Zivotofsky AZ
The present study investigates the performance of persons with reading disabilities (PRD) on a variety of sequential visual-comparison tasks that have different working-memory requirements. In addition, mediating relationships between the sequential comparison process and attention and memory skills were looked for. Our findings suggest that PRD perform worse than normally achieving readers (NAR) when the task requires more than a minimal amount of working memory, unrelated to presentation rate. We also demonstrate high correlations between performance on the task with the most working-memory demands and reading-related skills, suggesting that poor working-memory abilities may be one of the underlying mechanisms of dyslexia. The mediating model analysis indicates that order judgment tasks are mediating to verbal working memory, suggesting that visual sequence memory precedes auditory sequence memory. We further suggest that visual tasks involving sequential comparisons could probe for poor working memory in PRD.
PMID: 18768775 [PubMed - in process]
(Source: Journal of Learning Disabilities)
Written by Journal of Learning Disabilities · Filed Under Dyslexia | Comments Off
The total distribution of electromagnetic radiation emanating from the sun. The different regions of the solar spectrum are described by their wavelength range. The visible region extends from about 390 to 780 nanometers (a nanometer is one billionth of one meter). About 99 percent of solar radiation is contained in a wavelength region from 300 nm (ultraviolet) to 3,000 nm (near-infrared). The combined radiation in the wavelength region from 280 nm to 4,000 nm is called the broadband, or total, solar radiation. (Source: ndl news)
Written by LibWorm: Public Libraries · Filed Under Reading News | Comments Off
No Abstract (Source: Dyslexia)
Written by Dyslexia · Filed Under Dyslexia | Comments Off
Here are images of the exterior of the Thurgoona Learning Commons. Thanks to the Division of Facilities Management for the images. (Source: Your Library@CSU)
Written by LibWorm: Academic Libraries · Filed Under Library News | Comments Off
The European Commission has launched an open access pilot in which grant recipients in seven areas (energy, environment, health, parts of information and communication technologies, research infrastructures, science in society, and social sciences and humanities) will be required to deposit peer reviewed research articles or final manuscripts resulting from their projects into an online repository, and ensure open access to these articles within either six or twelve months after publication. The official website for this pilot was launched today, so be sure to check it out for further information. (Source: Your Library@CSU)
Written by LibWorm: Academic Libraries · Filed Under Library News | Comments Off
Each week CSU Library adds hundreds of new resources to our catalogue, including books, DVDs, CDs, and electronic resources. The following selection highlights some of the new books added to the collection last week. Click on a book's title to read more information about the book, or click on 'Check Availability' to find the book in the Library Catalogue. Click here to view the complete list of new titles.The rough guide to Macs & OS X by Peter Buckley and Duncan Clark Check AvailabilityExpert podcasting practices for dummies by Tee Morris, Evo Terra and Ryan Williams Check AvailabilityGut feelings : the intelligence of the unconscious by Gerd Gigerenzer Check AvailabilityFarm animal welfare : social, bioethical, and research issues by Bernard E. Rollin Check AvailabilityDistracted : the erosion of attention and the coming Dark Age by Maggie Jackson Check AvailabilityThe decline of nature : environmental history and the Western worldview by Gilbert F. LaFreniere Check AvailabilityThe hearts of men : tales of happiness and despair by Chris Barker Check AvailabilityBeyond biculturalism : the politics of an indigenous minority by Dominic O'Sullivan Check AvailabilityBig white lie : Chinese Australians in white Australia by John Fitzgerald Check AvailabilityPlanet savers : 301 extraordinary environmentalists by Kevin Desmond Check AvailabilitySustainable rural systems : sustainable agriculture and rural communities edited by Guy M. Robinson Check AvailabilityLegal alchemy : the use and misuse of science in the law by David L. Faigman Check AvailabilityIn therapy we trust: America's obsession with self-fulfillment by Eva S. ...
Written by LibWorm: Academic Libraries · Filed Under Library News | Comments Off
Black lagoon. 002 (Japanese animation based on Manga graphic novel by Rei Hiroe) Library catalogue holdings detailsBlack lagoon. 003 (Japanese animation based on Manga graphic novel by Rei Hiroe) Library catalogue holdings details Captain Corelli's mandolin starring Nicholas Cage Library catalogue holdings details Control directed by Anton Corbijn (feature film about Ian Curtis, lead singer of band The Joy Division) Library catalogue holdings details Dead in 3 days directed by Andreas Prochaska - At first, Nina and her clique think the threatening SMS is just a stupid joke. But no one is laughing when Nina’s boyfriend is found tied to a concrete block at the bottom of a lake the next day. ...
Written by LibWorm: Academic Libraries · Filed Under Library News | Comments Off
September 21st is International Day of Peace, during which participating organizations (UN/UNICEF, NATO, etc) ask that people put down their guns so children can be taken care of ..given vaccinations, mosquito netting, medicines .. (Source: @MCL)
Written by LibWorm: Public Libraries · Filed Under Reading News | Comments Off
... I do a lot of research on ADHD for both my 12 year old son ... of which can be debilitating, and since mental health insurance isn't even close to parity, ... that just doesn't cut it with this disorder. There are so many children out there ...
Written by Healthcare Industry Today: ADHD News · Filed Under ADHD | Comments Off
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