Disease: Dyslexia

    Dyslexia Facts

    • Dyslexia is difficulty in learning to read.
    • Dyslexia can be related to brain injury, heredity, or hormonal influences.
    • Letter and number reversals are a common warning sign of dyslexia.
    • Diagnosis of dyslexia involves reviewing the child's processing of information from seeing, hearing, and participating in activities.
    • Treatment of dyslexia ideally involves planning between the parent(s) and the teachers.

    What is dyslexia?

    Dyslexia has been around for a long time and has been defined in different ways. For example, in 1968, the World Federation of Neurologists defined dyslexia as "a disorder in children who, despite conventional classroom experience, fail to attain the language skills of reading, writing, and spelling commensurate with their intellectual abilities." According to the U.S. National Institutes of Health, dyslexia is a learning disability that can hinder a person's ability to read, write, spell, and sometimes speak. Dyslexia is the most common learning disability in children and persists throughout life. The severity of dyslexia can vary from mild to severe. The sooner dyslexia is treated, the more favorable the outcome. However, it is never too late for people with dyslexia to learn to improve their language skills.

    Children with dyslexia have difficulty in learning to read despite traditional instruction, at least average intelligence, and an adequate opportunity to learn. It is caused by an impairment in the brain's ability to translate images received from the eyes or ears into understandable language. It does not result from vision or hearing problems. It is not due to mental retardation, brain damage, or a lack of intelligence.

    Dyslexia can go undetected in the early grades of schooling. Children can become frustrated by the difficulty in learning to read, and other problems can arise that disguise dyslexia. They may show signs of depression and low self-esteem. Behavior problems at home, as well as at school, often manifest. Children may become unmotivated and develop a dislike for school, and their success may be jeopardized if the problem remains untreated.

    What causes dyslexia? What are the different types of dyslexia?

    There are several types of dyslexia that can affect a child's ability to spell as well as read.

    "Trauma dyslexia" usually occurs after some form of brain trauma or injury to the area of the brain that controls reading and writing. It is rarely seen in today's school-age population.

    A second type of dyslexia is referred to as "primary dyslexia." This type of dyslexia is a dysfunction of, rather than damage to, the left side of the brain (cerebral cortex) and does not change with age. Individuals with this type are rarely able to read above a fourth-grade level and may struggle with reading, spelling, and writing as adults. Primary dyslexia is passed in family lines through genes (hereditary). It is found more often in boys than in girls.

    A third type of dyslexia is referred to as "secondary" or "developmental dyslexia" and is felt to be caused by hormonal development during the early stages of fetal development. Developmental dyslexia diminishes as the child matures. It is also more common in boys.

    Dyslexia may affect several different functions. Visual dyslexia is characterized by number and letter reversals and the inability to write symbols in the correct sequence. Auditorydyslexia involves difficulty with sounds of letters or groupsof letters. The sounds are perceived as jumbled or not heard correctly. "Dysgraphia" refers to the child's difficulty holding and controlling a pencil so that the correct markings can be made on the paper.

    What are the signs and symptoms of dyslexia?

    Classroom teachers may not be able to determine if a child has dyslexia. They may detect early signs that suggest further assessment by a psychologist or other health professional in order to actually diagnose the disorder. Letter and number reversals are the most common warning sign. Such reversals are fairly common up to the age of 7 or 8 and usually diminish by that time. If they do not, it may be appropriate to test for dyslexia or other learning problems. Difficulty copying from the board or a book can also suggest problems. There may be a general disorganization of written work. A child may not be able to remember content, even if it involves a favorite video or storybook. Problems with spatial relationships can extend beyond the classroom and be observed on the playground. The child may appear to be uncoordinated and have difficulty with organized sports or games. Difficulty with left and right is common, and often dominance for either hand has not been established. In the early grades, music and dance are often used to enhance academic learning. Children with dyslexia can have difficulty moving to the rhythm of the music.

    Auditory problems in dyslexia encompass a variety of functions. Commonly, a child may have difficulty remembering or understanding what he hears. Recalling sequences of things or more than one command at a time can be difficult. Parts of words or parts of whole sentences may be missed, and words can come out sounding funny. The wrong word or a similar word may be used instead. Children struggling with this problem may know what they want to say but have trouble finding the actual words to express their thoughts.

    Many subtle signs can be observed in children with dyslexia. Children may become withdrawn and appear to be depressed. They may begin to act out, drawing attention away from their learning difficulty. Problems with self-esteem can arise, and peer and sibling interactions can become strained. These children may lose their interest in school-related activities and appearto be unmotivated or lazy. The emotional symptoms and signs are just as importantas the academic and require equal attention.

    What do parents do if they see these signs and symptoms?

    It is important to consult your pediatrician if you are concerned about your child's development. Additionally, meeting with your child's teachers is an important step toward getting more answers.

    Ideally, every school has a team that meets on a regular basis to discuss problems a specific child might be having. These teams are made up of the principal, classroom teacher, and one or a combination of the following depending on the staffing of the school: school psychologist, nurse, speech therapist, reading specialist, and other pertinent professionals. A parent should always be included as a part of this team. The teams are commonly referred to as Child Study Teams, Student Study Teams, or Student Support Teams. Any parent or teacher who suspects a learning problem may request a meeting with this team to discuss the child's problem. The parent may request this even if the teacher feels the child is doing well. Sometimes a decision to test the child will be made. The parent or teacher may request testing, but it cannot be done without the parents' written permission.

    If the child attends a private school which lacks the appropriate professionals to evaluate a suspected learning problem, he should be referred to the public-school system for evaluation. If testing is not satisfactorily conducted in the public-school system for private or public school students, the parent will need to locate the appropriate health professionals for assessment. A list of resources is provided at the conclusion of this article.

    Because testing can sometimes be stressful for children, especially if they are unhappy about their school performance, alternative strategies are usually tried before testing is done. Once the assessment plan has been discussed with the parent(s) and they have granted permission, the school team completes the testing and holds a meeting with the parent(s) to discuss the test results.

    The assessment plan for each child depends on the specific problems the child is having. Each plan should include testing in five areas: cognition (intelligence), academic performance, communication, sensory/motor, and health and developmental. The testing will be done by the various members of the school team or the professionals consulted by the parent. Typically, the school or clinical psychologist determines whether or not the child has dyslexia. Since there are different forms of dyslexia, such as learning disability in reading, written language, or math, the psychologist diagnoses the specific type. Another form known as expressive language delay can be diagnosed by a speech therapist.

    How is dyslexia diagnosed?

    Dyslexia is a difficult disorder to diagnose. There are many factors the psychologist or other health professional reviews to diagnose the disability. The testing determines the child's functional reading level and compares it to reading potential, which is evaluated by an intelligence test. All aspects of the reading process are examined to pinpoint where the breakdown is occurring. The testing further assesses how a child takes in and processes information and what the child does with the information. The tests determine whether a child learns better by hearing information (auditory), looking at information (visual), or doing something (kinesthetic). They also assess whether a child performs better when allowed to give information (output), by saying something (oral), or by doing something with their hands (tactile-kinesthetic). The tests also evaluate how all of these sensory systems (modalities) work in conjunction with each other.

    The tests administered are standardized and are considered highly reliable. The child should not feel as if there is something wrong because testing is occurring. Many of the tests use a game-type or puzzle format which can help make the child feel more comfortable. Children should get a good night's sleep prior to the testing and have a good breakfast. If the testing is done in a school setting, the teacher can prepare the child by talking about the person who will come and do special work with the child. With young children, the psychologist may visit the child's classroom before the testing so that the child is familiar with him. Whether or not the testing is done at school, the parent may want to talk to their child about a new person coming to work with them. However, parents should not try to coach the child concerning the testing. It is recommended that parents not be present during the testing.

    A standard battery of tests can include, but is not limited to, the following:

    1. Wechsler Intelligence Scale for Children-Third Edition (WISC-III)
    2. Kaufman Assessment Battery for Children (KABC)
    3. Stanford-Binet Intelligence Scale
    4. Woodcock-Johnson Psycho-Educational Battery
    5. Peabody Individual Achievement Tests-Revised (PIAT)
    6. Wechsler Individual Achievement Tests (WIAT)
    7. Kaufman Tests of Educational Achievement (KTEA)
    8. Bender Gestalt Test of Visual Motor Perception
    9. Beery Developmental Test of Visual-Motor Integration
    10. Motor-Free Visual Perception Test
    11. Visual Aural Digit Span Test (VADS)
    12. Test of Auditory Perception (TAPS)
    13. Test of Visual Perception (TVPS)
    14. Peabody Picture Vocabulary Test-Revised
    15. Expressive One-Word Picture Vocabulary Test
    16. Test for Auditory Comprehension of Language

    What causes dyslexia? What are the different types of dyslexia?

    There are several types of dyslexia that can affect a child's ability to spell as well as read.

    "Trauma dyslexia" usually occurs after some form of brain trauma or injury to the area of the brain that controls reading and writing. It is rarely seen in today's school-age population.

    A second type of dyslexia is referred to as "primary dyslexia." This type of dyslexia is a dysfunction of, rather than damage to, the left side of the brain (cerebral cortex) and does not change with age. Individuals with this type are rarely able to read above a fourth-grade level and may struggle with reading, spelling, and writing as adults. Primary dyslexia is passed in family lines through genes (hereditary). It is found more often in boys than in girls.

    A third type of dyslexia is referred to as "secondary" or "developmental dyslexia" and is felt to be caused by hormonal development during the early stages of fetal development. Developmental dyslexia diminishes as the child matures. It is also more common in boys.

    Dyslexia may affect several different functions. Visual dyslexia is characterized by number and letter reversals and the inability to write symbols in the correct sequence. Auditorydyslexia involves difficulty with sounds of letters or groupsof letters. The sounds are perceived as jumbled or not heard correctly. "Dysgraphia" refers to the child's difficulty holding and controlling a pencil so that the correct markings can be made on the paper.

    What are the signs and symptoms of dyslexia?

    Classroom teachers may not be able to determine if a child has dyslexia. They may detect early signs that suggest further assessment by a psychologist or other health professional in order to actually diagnose the disorder. Letter and number reversals are the most common warning sign. Such reversals are fairly common up to the age of 7 or 8 and usually diminish by that time. If they do not, it may be appropriate to test for dyslexia or other learning problems. Difficulty copying from the board or a book can also suggest problems. There may be a general disorganization of written work. A child may not be able to remember content, even if it involves a favorite video or storybook. Problems with spatial relationships can extend beyond the classroom and be observed on the playground. The child may appear to be uncoordinated and have difficulty with organized sports or games. Difficulty with left and right is common, and often dominance for either hand has not been established. In the early grades, music and dance are often used to enhance academic learning. Children with dyslexia can have difficulty moving to the rhythm of the music.

    Auditory problems in dyslexia encompass a variety of functions. Commonly, a child may have difficulty remembering or understanding what he hears. Recalling sequences of things or more than one command at a time can be difficult. Parts of words or parts of whole sentences may be missed, and words can come out sounding funny. The wrong word or a similar word may be used instead. Children struggling with this problem may know what they want to say but have trouble finding the actual words to express their thoughts.

    Many subtle signs can be observed in children with dyslexia. Children may become withdrawn and appear to be depressed. They may begin to act out, drawing attention away from their learning difficulty. Problems with self-esteem can arise, and peer and sibling interactions can become strained. These children may lose their interest in school-related activities and appearto be unmotivated or lazy. The emotional symptoms and signs are just as importantas the academic and require equal attention.

    What do parents do if they see these signs and symptoms?

    It is important to consult your pediatrician if you are concerned about your child's development. Additionally, meeting with your child's teachers is an important step toward getting more answers.

    Ideally, every school has a team that meets on a regular basis to discuss problems a specific child might be having. These teams are made up of the principal, classroom teacher, and one or a combination of the following depending on the staffing of the school: school psychologist, nurse, speech therapist, reading specialist, and other pertinent professionals. A parent should always be included as a part of this team. The teams are commonly referred to as Child Study Teams, Student Study Teams, or Student Support Teams. Any parent or teacher who suspects a learning problem may request a meeting with this team to discuss the child's problem. The parent may request this even if the teacher feels the child is doing well. Sometimes a decision to test the child will be made. The parent or teacher may request testing, but it cannot be done without the parents' written permission.

    If the child attends a private school which lacks the appropriate professionals to evaluate a suspected learning problem, he should be referred to the public-school system for evaluation. If testing is not satisfactorily conducted in the public-school system for private or public school students, the parent will need to locate the appropriate health professionals for assessment. A list of resources is provided at the conclusion of this article.

    Because testing can sometimes be stressful for children, especially if they are unhappy about their school performance, alternative strategies are usually tried before testing is done. Once the assessment plan has been discussed with the parent(s) and they have granted permission, the school team completes the testing and holds a meeting with the parent(s) to discuss the test results.

    The assessment plan for each child depends on the specific problems the child is having. Each plan should include testing in five areas: cognition (intelligence), academic performance, communication, sensory/motor, and health and developmental. The testing will be done by the various members of the school team or the professionals consulted by the parent. Typically, the school or clinical psychologist determines whether or not the child has dyslexia. Since there are different forms of dyslexia, such as learning disability in reading, written language, or math, the psychologist diagnoses the specific type. Another form known as expressive language delay can be diagnosed by a speech therapist.

    How is dyslexia diagnosed?

    Dyslexia is a difficult disorder to diagnose. There are many factors the psychologist or other health professional reviews to diagnose the disability. The testing determines the child's functional reading level and compares it to reading potential, which is evaluated by an intelligence test. All aspects of the reading process are examined to pinpoint where the breakdown is occurring. The testing further assesses how a child takes in and processes information and what the child does with the information. The tests determine whether a child learns better by hearing information (auditory), looking at information (visual), or doing something (kinesthetic). They also assess whether a child performs better when allowed to give information (output), by saying something (oral), or by doing something with their hands (tactile-kinesthetic). The tests also evaluate how all of these sensory systems (modalities) work in conjunction with each other.

    The tests administered are standardized and are considered highly reliable. The child should not feel as if there is something wrong because testing is occurring. Many of the tests use a game-type or puzzle format which can help make the child feel more comfortable. Children should get a good night's sleep prior to the testing and have a good breakfast. If the testing is done in a school setting, the teacher can prepare the child by talking about the person who will come and do special work with the child. With young children, the psychologist may visit the child's classroom before the testing so that the child is familiar with him. Whether or not the testing is done at school, the parent may want to talk to their child about a new person coming to work with them. However, parents should not try to coach the child concerning the testing. It is recommended that parents not be present during the testing.

    A standard battery of tests can include, but is not limited to, the following:

    1. Wechsler Intelligence Scale for Children-Third Edition (WISC-III)
    2. Kaufman Assessment Battery for Children (KABC)
    3. Stanford-Binet Intelligence Scale
    4. Woodcock-Johnson Psycho-Educational Battery
    5. Peabody Individual Achievement Tests-Revised (PIAT)
    6. Wechsler Individual Achievement Tests (WIAT)
    7. Kaufman Tests of Educational Achievement (KTEA)
    8. Bender Gestalt Test of Visual Motor Perception
    9. Beery Developmental Test of Visual-Motor Integration
    10. Motor-Free Visual Perception Test
    11. Visual Aural Digit Span Test (VADS)
    12. Test of Auditory Perception (TAPS)
    13. Test of Visual Perception (TVPS)
    14. Peabody Picture Vocabulary Test-Revised
    15. Expressive One-Word Picture Vocabulary Test
    16. Test for Auditory Comprehension of Language

    Source: http://www.rxlist.com

    There are several types of dyslexia that can affect a child's ability to spell as well as read.

    "Trauma dyslexia" usually occurs after some form of brain trauma or injury to the area of the brain that controls reading and writing. It is rarely seen in today's school-age population.

    A second type of dyslexia is referred to as "primary dyslexia." This type of dyslexia is a dysfunction of, rather than damage to, the left side of the brain (cerebral cortex) and does not change with age. Individuals with this type are rarely able to read above a fourth-grade level and may struggle with reading, spelling, and writing as adults. Primary dyslexia is passed in family lines through genes (hereditary). It is found more often in boys than in girls.

    A third type of dyslexia is referred to as "secondary" or "developmental dyslexia" and is felt to be caused by hormonal development during the early stages of fetal development. Developmental dyslexia diminishes as the child matures. It is also more common in boys.

    Dyslexia may affect several different functions. Visual dyslexia is characterized by number and letter reversals and the inability to write symbols in the correct sequence. Auditorydyslexia involves difficulty with sounds of letters or groupsof letters. The sounds are perceived as jumbled or not heard correctly. "Dysgraphia" refers to the child's difficulty holding and controlling a pencil so that the correct markings can be made on the paper.

    Source: http://www.rxlist.com

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