Dyslexia
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Dyslexia
Dyslexia (), previously known as word blindness, is a learning disability that affects either reading or writing. 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. Dyslexia is believed to be caused by the interaction of genetic and environmental factors. Some cases run in families. Dyslexia that develops due to a traumatic brain injury, stroke, or dementia is sometimes called "acquired dyslexia" or alexia. The underlying mechanisms of dyslexia result from differences within the ...
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Alexia (condition)
Dyslexia (), previously known as word blindness, is a learning disability that affects either reading or writing. Different people are affected to different degrees. Problems may include difficulties in spelling words, reading quickly, handwriting, writing words, "sounding out" words Subvocalization, 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 dyscalculia, difficulties with numbers. Dyslexia is believed to be caused by the Gene–environment interaction, interaction of Genetics, genetic and environmental factors. Some cases run in families. Dyslexia that develops due to a traumatic brain injury, stroke, or dementia is sometimes called "acquired dyslexia" or alexi ...
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International Dyslexia Association
The International Dyslexia Association (IDA) is a non-profit education and advocacy organization devoted to issues surrounding dyslexia. Its headquarters are located in Pikesville, Maryland, United States. The International Dyslexia Association serves individuals with dyslexia, their families, and professionals in the field. It has 9,000 members and it operates with more than 40 branches throughout the United States and Canada, and has global partners in twenty-one countries. IDA has an all-volunteer Board of Directors. The IDA provides information about dyslexia on its website, publishes a peer-reviewed scientific journal (''Annals of Dyslexia''), publishes newsletter updates to members; provides referral services to individuals and professionals; advocates for the rights of individuals with dyslexia through the legal and Federal legislative systems. IDA is working to match increasing demand for teacher training and teacher preparation aligned with the IDA Knowledge & Practice ...
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Reading Education
Reading is the process of taking in the sense or meaning of symbols, often specifically those of a written language, by means of sight or touch. For educators and researchers, reading is a multifaceted process involving such areas as word recognition, orthography (spelling), alphabetics, phonics, phonemic awareness, vocabulary, comprehension, fluency, and motivation. Other types of reading and writing, such as pictograms (e.g., a hazard symbol and an emoji), are not based on speech-based writing systems. The common link is the interpretation of symbols to extract the meaning from the visual notations or tactile signals (as in the case of braille). Overview Reading is generally an individual activity, done silently, although on occasion a person reads out loud for other listeners; or reads aloud for one's own use, for better comprehension. Before the reintroduction of separated text (spaces between words) in the late Middle Ages, the ability to read silently was con ...
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Reading (process)
Reading is the process of taking in the sense or meaning of symbols, often specifically those of a written language, by means of Visual perception, sight or Somatosensory system, touch. For educators and researchers, reading is a multifaceted process involving such areas as word recognition, orthography (spelling), Alphabetic principle, alphabetics, phonics, phonemic awareness, vocabulary, comprehension, fluency, and motivation. Other types of reading and writing, such as pictograms (e.g., a hazard symbol and an emoji), are not based on speech-based writing systems. The common link is the interpretation of symbols to extract the meaning from the visual notations or tactile signals (as in the case of braille). Overview Reading is generally an individual activity, done silently, although on occasion a person reads out loud for other listeners; or reads aloud for one's own use, for better comprehension. Before the reintroduction of Palaeography, separated text (spaces betwe ...
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Learning Disability
Learning disability, learning disorder, or learning difficulty (British English) is a condition in the brain that causes difficulties comprehending or processing information and can be caused by several different factors. Given the "difficulty learning in a typical manner", this does not exclude the ability to learn in a different manner. Therefore, some people can be more accurately described as having a "learning difference", thus avoiding any misconception of being disabled with a possible lack of an ability to learn and possible negative stereotyping. In the United Kingdom, the term "learning disability" generally refers to an intellectual disability, while conditions such as dyslexia and dyspraxia are usually referred to as "learning difficulties". While ''learning disability'' and ''learning disorder'' are often used interchangeably, they differ in many ways. Disorder refers to significant learning problems in an academic area. These problems, however, are not enough to wa ...
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Dyscalculia
Dyscalculia () is a learning disability resulting in difficulty learning or comprehending arithmetic, such as difficulty in understanding numbers, numeracy, learning how to manipulate numbers, performing mathematical calculations, and learning facts in mathematics. It is sometimes colloquially referred to as "math dyslexia", though this analogy can be misleading as they are distinct syndromes. Dyscalculia is associated with dysfunction in the region around the intraparietal sulcus and potentially also the frontal lobe. Dyscalculia does not reflect a general deficit in cognitive abilities or difficulties with time, measurement, and Spatial visualization ability, spatial reasoning. Estimates of the prevalence of dyscalculia range between 3 and 6% of the population. In 2015 it was established that 11% of children with dyscalculia also have attention deficit hyperactivity disorder (ADHD). Dyscalculia has also been associated with Turner syndrome and people who have spina bifida. Mat ...
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Surface Dyslexia
Surface dyslexia is a type of Alexia (condition), dyslexia, or reading disorder. According to John C. Marshall (neuropsychologist), Marshall & Newcombe's (1973) and McCarthy & Warrington's study (1990), patients with this kind of disorder cannot recognize a word as a whole due to the damage of the left parietal lobe, parietal or temporal lobe. Individuals with surface dyslexia are unable to recognize a word as a whole word and retrieve its pronunciation from memory. Rather, individuals with surface dyslexia rely on pronunciation rules. Thus, patients with this particular type of reading disorder read non-words fluently, like "yatchet", but struggle with words that defy pronunciation rules (i.e. exception words). For example, a patient with surface dyslexia can correctly read regular words like "mint", but will fail when presented with a word that disobeys typical pronunciation rules, like "pint". Often, semantic knowledge is preserved in individuals with surface dyslexia. The dua ...
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Attention Deficit Hyperactivity Disorder
Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterised by symptoms of inattention, hyperactivity, impulsivity, and emotional dysregulation that are excessive and pervasive, impairing in multiple contexts, and Developmental psychology, developmentally inappropriate. ADHD symptoms arise from executive dysfunction. Impairments resulting from deficits in self-regulation such as time management, Cognitive inhibition, inhibition, task initiation, and sustained attention can include poor professional performance, relationship difficulties, and numerous health risks, collectively predisposing to a diminished Quality of life (healthcare), quality of life and a reduction in life expectancy. As a consequence, the disorder costs society hundreds of billions of US dollars each year, worldwide. It is associated with other mental disorders as well as non-psychiatric disorders, which can cause additional impairment. While ADHD involves a lack of su ...
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Developmental Language Disorder
Developmental language disorder (DLD) is identified when a child has problems with language development that continue into school age and beyond. The language problems have a significant impact on everyday social interactions or educational progress, and occur in the absence of autism spectrum disorder, intellectual disability, or a known biomedical condition. The most obvious problems are difficulties in using words and sentences to express meanings, but for many children, understanding of language ( receptive language) is also a challenge. This may not be evident unless the child is given a formal assessment. The field of developmental language disorders has evolved significantly in recent years, with a move towards standardizing terminology to address confusion and improve communication. The CATALISE Consortium, composed of experts, endorsed the term "developmental language disorder" in 2017, recognizing it as a subset of language disorder within the broader spectrum of speech, ...
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Spelling
Spelling is a set of conventions for written language regarding how graphemes should correspond to the sounds of spoken language. Spelling is one of the elements of orthography, and highly standardized spelling is a prescriptive element. Spellings originated as transcription (linguistics), transcriptions of the sounds of speech according to the alphabetic principle. Fully phonemic orthography is usually only approximated, due to factors including changes in pronunciation over time, and the borrowing of vocabulary from other languages without adapting its spelling. Homophones may be spelled differently on purpose in order to disambiguate words that would otherwise have identical spellings. Standards and conventions Standardization of spelling is connected with the development of writing and the establishment of modern standard language, standard dialects. Languages with established orthography are those languages that enjoy an official language, official status and a degree of in ...
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Handwriting
Handwriting in Italian schools (XXth - XXIst century) Handwriting is the personal and unique style of writing with a writing instrument, such as a pen or pencil in the hand. Handwriting includes both block and cursive styles and is separate from generic and formal handwriting script/style, calligraphy or typeface. Because each person's handwriting is unique and different, it can be used to verify a document's writer. The deterioration of a person's handwriting is also a symptom or result of several different diseases. The inability to produce clear and coherent handwriting is also known as dysgraphia. Uniqueness Each person has their own unique style of handwriting, whether it be everyday handwriting or their personal signature. Cultural environment and the characteristics of the written form of the first language that one learns to write are the primary influences on the development of one's own unique handwriting style.Sargur Srihari, Chen Huang and Harish Srinivasan ...
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Phonological Awareness
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 (process), reading ability and has, therefore, been the focus of much research. Overview Phonological awareness involves the detection and manipulation of sounds at three levels of sound structure: (1) syllables, (2) Syllable onset, onsets and syllable rime, rimes, and (3) phonemes. Awareness of these sounds is demonstrated through a variety of tasks (see below). Available published tests of phonological awareness (for example PhAB2) are often used by teachers, psychologists and speech therapists to help understand difficulties in this aspect of language and literacy. Although the tasks vary, they share the basic requirement that some operation (e.g., identifying, comparing, separating, combining, generating) be performed on the sounds. It is assumed that the individual performing these ta ...
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