Dyslexia, also known until the 1960s as word blindness, is a disorder characterized by reading below the expected level for one's age. Different people are affected to different degrees. Problems may include difficulties in spelling words, reading quickly, writing words, "sounding out" words in the head, pronouncing words when reading aloud and understanding what one reads. Often these difficulties are first noticed at school. The difficulties are involuntary, and people with this disorder have a normal desire to learn. People with dyslexia have higher rates of attention deficit hyperactivity disorder (ADHD), developmental language disorders, and difficulties with numbers.
Dysgraphia is a learning disability of written expression, which affects the ability to write, primarily handwriting, but also coherence. It is a specific learning disability (SLD) as well as a transcription disability, meaning that it is a writing disorder associated with impaired handwriting, orthographic coding and finger sequencing. It often overlaps with other learning disabilities and neurodevelopmental disorders such as speech impairment, attention deficit hyperactivity disorder (ADHD) or developmental coordination disorder (DCD).
Reading for special needs has become an area of interest as the understanding of reading has improved. Teaching children with special needs how to read was not historically pursued due to perspectives of a Reading Readiness model. This model assumes that a reader must learn to read in a hierarchical manner such that one skill must be mastered before learning the next skill. This approach often led to teaching sub-skills of reading in a decontextualized manner. This style of teaching made it difficult for children to master these early skills, and as a result, did not advance to more advanced literacy instruction and often continued to receive age-inappropriate instruction.
Phonological awareness is an individual's awareness of the phonological structure, or sound structure, of words. Phonological awareness is an important and reliable predictor of later reading ability and has, therefore, been the focus of much research.
Inventive spelling is the use of unconventional spellings of words.
Susan Brady is an American psychologist and literacy expert who is a professor of school psychology at the University of Rhode Island. For many years, she led the Haskins Literacy Initiative at Haskins Laboratories in New Haven, Connecticut which promotes the "science of teaching reading." She has been a leading researcher in the area of reading acquisition for over thirty years and has been involved with efforts to improve state and national policy on the teaching of reading including speaking before a U.S. Senate committee.
Isabelle Yoffe Liberman (1918–1990) was an American psychologist, born in Latvia, who was an expert on reading disabilities, including dyslexia. Isabelle Liberman received her bachelor's degree from Vassar College and her doctorate from Yale University. She was a professor at the University of Connecticut from 1966 through 1987 and a research associate at the Haskins Laboratories.
Management of dyslexia depends on a multiple of variables; there is no one specific strategy or set of strategies which will work for all who have dyslexia.
The Center for Research, Evaluation and Awareness of Dyslexia is a university-based program at Pittsburg State University in Pittsburg, Kansas. It was established in 1996 to develop strategies for the prevention and remediation of reading disabilities, search for strategies that will lead to the improvement of remedial processes, provide educators and parents with current and appropriate knowledge regarding reading/learning disabilities, provide interdisciplinary evaluations of readers of all ages, promote the concerns relevant to reading disabilities and educate the general public regarding issues pertaining to reading/learning disabilities.
Reading is the process of taking in the sense or meaning of letters, symbols, etc., especially by sight or touch.
Catherine Alexandra McBride,, was formerly the Choh-Ming Li Professor of Developmental Psychology at the Chinese University of Hong Kong (CUHK) specializing in the acquisition of early literacy skills. She is currently the Associate Dean for Research for the College of Health and Human Sciences at Purdue University and also a professor in the Department of Human Development and Family Science, and remains an Emeritus Professor of Psychology at CUHK. She received her BA in psychology from Oberlin College, Oberlin, Ohio. She received her MA in 1992 and PhD in 1994 from the University of Southern California, and completed a post-doctoral fellowship at Florida State University in Tallahassee, Florida. She has written two books (namely, Children's Literacy Development and Coping with Dyslexia, Dysgraphia and ADHD: A Global Perspective and co-edited three others. She is currently the Past-President of the Society for the Scientific Study of Reading.
Language-based learning disabilities or LBLD are "heterogeneous" neurological differences that can affect skills such as listening, reasoning, speaking, reading, writing, and math calculations. It is also associated with movement, coordination, and direct attention. LBLD is not usually identified until the child reaches school age. Most people with this disability find it hard to communicate, to express ideas efficiently and what they say may be ambiguous and hard to understand It is a neurological difference. It is often hereditary, and is frequently associated to specific language problems.
The history of dyslexia research spans from the late 1800s to the present.
Dyslexia is a reading disorder wherein an individual experiences trouble with reading. Individuals with dyslexia have normal levels of intelligence but can exhibit difficulties with spelling, reading fluency, pronunciation, "sounding out" words, writing out words, and reading comprehension. The neurological nature and underlying causes of dyslexia are an active area of research. However, some experts believe that the distinction of dyslexia as a separate reading disorder and therefore recognized disability is a topic of some controversy.
Dyslexia is a complex, lifelong disorder involving difficulty in learning to read or interpret words, letters and other symbols. Dyslexia does not affect general intelligence, but is often co-diagnosed with ADHD. There are at least three sub-types of dyslexia that have been recognized by researchers: orthographic, or surface dyslexia, phonological dyslexia and mixed dyslexia where individuals exhibit symptoms of both orthographic and phonological dyslexia. Studies have shown that dyslexia is genetic and can be passed down through families, but it is important to note that, although a genetic disorder, there is no specific locus in the brain for reading and writing. The human brain does have language centers, but written language is a cultural artifact, and a very complex one requiring brain regions designed to recognize and interpret written symbols as representations of language in rapid synchronization. The complexity of the system and the lack of genetic predisposition for it is one possible explanation for the difficulty in acquiring and understanding written language.
Dyslexia is a disorder characterized by problems with the visual notation of speech, which in most languages of European origin are problems with alphabet writing systems which have a phonetic construction. Examples of these issues can be problems speaking in full sentences, problems correctly articulating Rs and Ls as well as Ms and Ns, mixing up sounds in multi-syllabic words, problems of immature speech such as "wed and gween" instead of "red and green".
Rapid automatized naming (RAN) is a task that measures how quickly individuals can name aloud objects, pictures, colors, or symbols. Variations in rapid automatized naming time in children provide a strong predictor of their later ability to read, and is independent from other predictors such as phonological awareness, verbal IQ, and existing reading skills. Importantly, rapid automatized naming of pictures and letters can predict later reading abilities for pre-literate children.
David P. Hurford is a psychologist and researcher who specializes in dyslexia/reading difficulties and attention deficit hyperactivity disorder (ADHD). He is a professor and chair of the Department of Psychology and Counseling at Pittsburg State University and directs the Center for Research, Evaluation and Awareness of Dyslexia at the same institution. In addition, he is the president of Reading Screening, LLC and the manager of the Center for the Assessment and Remediation of Reading Difficulties, Inc. a nonprofit created to help individuals become competent readers and was a Spencer Fellow of the National Academy of Education.
Anne Castles is a cognitive scientist of reading and language, with a particular focus on reading development and developmental dyslexia.
The simple view of reading is a scientific theory that a student's ability to understand written words depends on how well they sound out (decode) the words and understand the meaning of those words. Specifically, their reading comprehension can be predicted by multiplying their skill in decoding the written words by their ability to understand the meaning of those words. It is expressed in this equation:
