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{{Infobox disease
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| Name = Developmental disorder
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| Image =
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| Caption =
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| DiseasesDB =
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| ICD10 = F80-F84
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| ICD9 = {{ICD9|299}}, {{ICD9|315}}
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| ICDO =
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| OMIM =
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| MedlinePlus =
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| eMedicineSubj =
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}}
   
'''Developmental disorders''' are disorders that occur at some stage in a [[child]]'s development, often retarding the development. These may include [[psychology|psychological]] or physical disorders.
+
'''Developmental disorders''' is a group of [[psychiatric]] conditions originating in childhood that involve serious impairment in different areas. There are several ways of using this term.<ref name = Rutter3233>{{cite book | url=http://eu.wiley.com/WileyCDA/WileyTitle/productCd-1405145498.html | title=Rutter's Child and Adolescent Psychiatry, Fifth Edition | publisher=Blackwell Publishing Ltd | editors= Michael Rutter, Dorothy V. M. Bishop, Daniel S. Pine, Stephen Scott, Jim Stevenson, Eric Taylor, Anita Thapar | others =Dorothy Bishop and Michael Rutter | year=2008 | pages=32-33 | isbn=978-1-4051-4549-7}}</ref> The most narrow concept is used in the category "Specific Disorders of Psychological Development" in the [[ICD-10]].<ref name = Rutter3233/> These disorders comprise [[language disorders]], [[learning disorders]], [[Motor skills disorder|motor disorders]] and [[autism spectrum disorders]].<ref>http://priory.com/psych/ICD.htm</ref> In broader definitions [[ADHD]] is included, and the term used is [[neurodevelopmental disorders]].<ref name = Rutter3233/> Yet others include [[antisocial behavior]] and [[schizophrenia]] that begins in childhood and continues through life.<ref name = Rutter3233/> However, these two latter conditions are not as stable as the other developmental disorders, and there is not the same evidence of a shared genetic liability.<ref name = Rutter3233/><br />
  +
Developmental disorders are present from early life. They usually improve as the child grows older, but they also entail impairments that continue through adult life. There is a strong genetic component, and more males are afflicted than females.<ref name = Rutter3233/>
   
  +
==Emergence==
  +
Learning disabilities are diagnosed when the children are young and just beginning school. Most learning disabilities are found under the age of 9.<ref>National Joint Committee on Learning Disabilities. (1982). Learning disabilities: Issues on definition. Asha, 24 (11), 945-947.</ref>
   
* [[Developmental disability]]
+
Young children with communication disorders may not speak at all, or may have a limited vocabulary for their age.<ref name="comm">Communication Disorders. (n.d.). Children's Hospital of Wisconsin in Milwaukee, WI, Retrieved December 6, 2011, from http://www.chw.org/display/PPF/DocID/</ref> Some children with communication disorders have difficulty understanding simple directions or are unable to name objects.<ref name="comm"/> Most children with communication disorders are able to speak by the time they enter school, however, they continue to have problems with communication.<ref name="comm"/> School-aged children often have problems understanding and formulating words.<ref name="comm"/> Teens may have more difficulty with understanding or expressing abstract ideas.<ref name="comm"/>
   
* [[Mental retardation]]
+
=== Causes ===
  +
The scientific study of the causes of developmental disorders involves many different theories. Some of the major differences between these theories involves whether or not environment disrupts normal development, or if abnormalities are pre-determined.<ref>Karmiloff, Annette. "Development itself is key to understanding developmental disorders". Page 1. Published October 1, 1998. Retrieved on November 26, 2011 from: http://www.sciencedirect.com/science/article/pii/S1364661398012303.</ref>
  +
Normal development occurs with a combination of contributions from both the environment and genetics. The theories vary in the part each factor has to play in normal development, thus affecting how the abnormalities are caused.<ref>Karmiloff, Annette. "Development itself is key to understanding developmental disorders". Page 1. Published October 1, 1998. Retrieved on November 26, 2011 from: http://www.sciencedirect.com/science/article/pii/S1364661398012303</ref>
   
* [[Learning disability]]
+
One theory that supports environmental causes of developmental disorders involves stress in early childhood. Researcher and child psychiatrist [[Bruce D. Perry|Bruce D. Perry, M.D., Ph.D]], theorizes that developmental disorders can be caused by early childhood traumatization.<ref name="Perry, Bruce D 2006, p.2">Perry, Bruce D. and Szalavitz, Maia. "The Boy Who Was Raised As A Dog", Basic Books, 2006, p.2. ISBN 978-0-465-05653-8</ref> In his works he compares developmental disorders in traumatized children to adults with post-traumatic stress disorder, linking extreme environmental stress to the cause of developmental difficulties.<ref name="Perry, Bruce D 2006, p.2"/> Other stress theories suggest that even small stresses can accumulate to result in emotional, behavioral, or social disorders in children.<ref>Payne, Kim John. “Simplicity Parenting: Using the Extraordinary Power of Less to Raise Calmer, Happier, and More Secure Kids”, Ballantine Books, 2010, p. 9. ISBN 9780345507983</ref>
   
* [[Specific developmental disorder]]
+
==Types==
  +
* [[Learning disabilities]]
  +
* [[Communication disorders]]
  +
* [[Autism]]
  +
* [[Attention-deficit hyperactivity disorder]]
  +
* [[Developmental coordination disorder]]
   
* [[Pervasive developmental disorder]]
+
===Autism spectrum disorder (ASD)===
   
* [[Failure to thrive]]
+
====Diagnosis====
  +
The first diagnosed case of ASD was in 1938 by American psychiatrist Leo Kanner. There is a wide range of cases and severity to ASD so it is very hard to detect the first signs of ASD. A diagnosis of ASD can be made accurately before the child is 3 years old but the diagnosis of ASD is not commonly confirmed until the child is somewhat older. The ages of diagnosis can range from 9 months to 14 years however the mean age of diagnosis is 13 months. On average each case of ASD is tested at 3 different diagnostic centers before confirmed. Early diagnosis of the disorder can diminish familial stress, speed up referral to special educational programs and influence family planning.<ref name="Dereu, Mieke 2010">Dereu, Mieke. (2010). ''Screening for Autism Spectrum Disorders in Flemish Day-Care Centers with the Checklist for Early Signs of Developmental Disorders.'' Springer Science+Business Media. 1247-1258.</ref>
  +
  +
====In the brain====
  +
The cause of ASD is still uncertain. ASD is a disorder of the cortex, which controls higher functions, sensation, muscle movements, and memory. What is known is that a child with ASD has a pervasive problem with how the brain is wired. The distribution of white matter, the nerve fibers that link diverse parts of the brain, is abnormal. An ASD child’s brain grows at a very rapid rate and is almost fully grown by the age of 10.<ref name="Dereu, Mieke 2010"/>
  +
  +
====Symptoms====
  +
Still a lot of information is unclear about ASD and the symptoms have a wide range of severity. Signs include impairments in social interactions, communication and repetitive or restricted patterns of interest or behaviors. There are also different symptoms at different ages based on developmental milestones. For children between 0 and 36 months with ASD show lack of eye contact, seem to be deaf, lack of social smile, doesn’t like being touched or held, unusual sensory behavior, lack of imitation. For children between 12 and 24 months with ASD show lack of gestures, prefer to be alone, lack of pointing to object to indicate interest, easily frustrated with challenges, and lack of functional play. And finally children between the ages 24 to 36 months with ASD show lack of symbolic play and an unusual interest in certain objects, or moving objects.<ref name="Dereu, Mieke 2010"/>
  +
  +
====Treatment====
  +
There is no cure for ASD and proper treatment depends on the case and what is most struggled with. ASD is like many other disorders where when diagnosed early, can be better treated. Different types of therapy are helpful such as music therapy and physical therapy. Other treatments include auditory training, discrete trial training, facilitated communication, and sensory integration.<ref name="Dereu, Mieke 2010"/>
  +
  +
===ADD/ADHD===
  +
[[Attention deficit disorder]] and [[attention deficit hyperactivity disorder]] are psychiatric disorders that are marked by significant levels of hyperactivity, inattentiveness, and impulsiveness. There are three types of these disorders; inattentive, hyperactive/impulsive, and a combination (inattentive, hyperactive and impulsive).<ref name="Tresco Katy E. 2004">Tresco, Katy E. (2004). ''Attention Deficit Disorders: School-Based Interventions.'' Pennsylvania: Bethlehem.</ref>
  +
  +
====Treatment options====
  +
The different kinds of medicines that can be taken to treat attention deficit (hyperactivity) disorder include [[central nervous system stimulants]], [[antidepressants]], [[antihypertensives]], and selective norepinephrine reuptake inhibitors ([[SNRIs]]). Examples of central nervous system stimulants include Ritalin, Concerta, and Metadate (different forms of [[methylphenidate]]), [[Adderall]] (amphetamine and dextroamphetamine mixed salts) and [[Dexedrine]] (dextroamphetamine sulfate). Examples of the antidepressants, antihypertensives, and selective norepinephrine reuptake inhibitors commonly prescribed are [[bupropion]], [[clonidine]] and [[atomoxetine]], respectively.
   
  +
====Symptoms====
  +
Symptoms of ADD/ADHD include inattentiveness, impulsiveness, and hyperactivity. Many of the behaviors that are associated with ADD/ADHD include poor control over actions resulting in disruptive behavior and academic problems. Another area that is affected by these disorders is the social arena for the person with the disorder. Many children that are afflicted with this disorder exhibit poor interpersonal relationships and struggle to fit in socially with their peers.<ref name="Tresco Katy E. 2004"/>
   
 
==Developmental aspect in mental health==
 
==Developmental aspect in mental health==
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==See also==
 
==See also==
  +
* [[Auditory processing disorder]]
  +
* [[Dysgraphia]]
 
* [[Early Childhood Intervention]]
 
* [[Early Childhood Intervention]]
  +
* [[Developmental disability]]
  +
* [[Failure to thrive]]
  +
* [[Mental retardation]]
  +
* [[Pervasive developmental disorder]]
  +
* [[Specific developmental disorder]]
   
==References & Bibliography==
+
+
==References==
  +
<references/>
  +
  +
==Further reading==
 
==Key texts==
 
==Key texts==
   
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===Papers===
 
===Papers===
*[http://scholar.google.com/scholar?sourceid=mozclient&num=50&scoring=d&ie=utf-8&oe=utf-8&q=Developmental+psychopathology Google Scholar]
+
*[http://scholar.google.com/scholar?sourceid=mozclient&num=50&scoring=d&ie=utf-8&oe=utf-8&q=Developmental+disorders Google Scholar]
   
 
==External links==
 
==External links==
   
  +
{{Mental and behavioural disorders|selected = childhood}}
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{{Dyslexia and specific developmental disorders}}
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{{Pervasive developmental disorders}}
   
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{{DEFAULTSORT:Developmental Disorder}}
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[[Category:Child psychology]]
 
[[Category:Developmental psychology]]
 
[[Category:Developmental psychology]]
[[Category:Child psychology]]
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[[Category:Neuroscience]]
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[[Category:Developmental neuroscience]]
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[[Category:Psychiatric diagnosis]]
   
   

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Developmental disorder
Classification and external resources
ICD-10 F80-F84
ICD-9 299, 315

Developmental disorders is a group of psychiatric conditions originating in childhood that involve serious impairment in different areas. There are several ways of using this term.[1] The most narrow concept is used in the category "Specific Disorders of Psychological Development" in the ICD-10.[1] These disorders comprise language disorders, learning disorders, motor disorders and autism spectrum disorders.[2] In broader definitions ADHD is included, and the term used is neurodevelopmental disorders.[1] Yet others include antisocial behavior and schizophrenia that begins in childhood and continues through life.[1] However, these two latter conditions are not as stable as the other developmental disorders, and there is not the same evidence of a shared genetic liability.[1]
Developmental disorders are present from early life. They usually improve as the child grows older, but they also entail impairments that continue through adult life. There is a strong genetic component, and more males are afflicted than females.[1]

EmergenceEdit

Learning disabilities are diagnosed when the children are young and just beginning school. Most learning disabilities are found under the age of 9.[3]

Young children with communication disorders may not speak at all, or may have a limited vocabulary for their age.[4] Some children with communication disorders have difficulty understanding simple directions or are unable to name objects.[4] Most children with communication disorders are able to speak by the time they enter school, however, they continue to have problems with communication.[4] School-aged children often have problems understanding and formulating words.[4] Teens may have more difficulty with understanding or expressing abstract ideas.[4]

Causes Edit

The scientific study of the causes of developmental disorders involves many different theories. Some of the major differences between these theories involves whether or not environment disrupts normal development, or if abnormalities are pre-determined.[5] Normal development occurs with a combination of contributions from both the environment and genetics. The theories vary in the part each factor has to play in normal development, thus affecting how the abnormalities are caused.[6]

One theory that supports environmental causes of developmental disorders involves stress in early childhood. Researcher and child psychiatrist Bruce D. Perry, M.D., Ph.D, theorizes that developmental disorders can be caused by early childhood traumatization.[7] In his works he compares developmental disorders in traumatized children to adults with post-traumatic stress disorder, linking extreme environmental stress to the cause of developmental difficulties.[7] Other stress theories suggest that even small stresses can accumulate to result in emotional, behavioral, or social disorders in children.[8]

TypesEdit

Autism spectrum disorder (ASD)Edit

DiagnosisEdit

The first diagnosed case of ASD was in 1938 by American psychiatrist Leo Kanner. There is a wide range of cases and severity to ASD so it is very hard to detect the first signs of ASD. A diagnosis of ASD can be made accurately before the child is 3 years old but the diagnosis of ASD is not commonly confirmed until the child is somewhat older. The ages of diagnosis can range from 9 months to 14 years however the mean age of diagnosis is 13 months. On average each case of ASD is tested at 3 different diagnostic centers before confirmed. Early diagnosis of the disorder can diminish familial stress, speed up referral to special educational programs and influence family planning.[9]

In the brainEdit

The cause of ASD is still uncertain. ASD is a disorder of the cortex, which controls higher functions, sensation, muscle movements, and memory. What is known is that a child with ASD has a pervasive problem with how the brain is wired. The distribution of white matter, the nerve fibers that link diverse parts of the brain, is abnormal. An ASD child’s brain grows at a very rapid rate and is almost fully grown by the age of 10.[9]

SymptomsEdit

Still a lot of information is unclear about ASD and the symptoms have a wide range of severity. Signs include impairments in social interactions, communication and repetitive or restricted patterns of interest or behaviors. There are also different symptoms at different ages based on developmental milestones. For children between 0 and 36 months with ASD show lack of eye contact, seem to be deaf, lack of social smile, doesn’t like being touched or held, unusual sensory behavior, lack of imitation. For children between 12 and 24 months with ASD show lack of gestures, prefer to be alone, lack of pointing to object to indicate interest, easily frustrated with challenges, and lack of functional play. And finally children between the ages 24 to 36 months with ASD show lack of symbolic play and an unusual interest in certain objects, or moving objects.[9]

TreatmentEdit

There is no cure for ASD and proper treatment depends on the case and what is most struggled with. ASD is like many other disorders where when diagnosed early, can be better treated. Different types of therapy are helpful such as music therapy and physical therapy. Other treatments include auditory training, discrete trial training, facilitated communication, and sensory integration.[9]

ADD/ADHDEdit

Attention deficit disorder and attention deficit hyperactivity disorder are psychiatric disorders that are marked by significant levels of hyperactivity, inattentiveness, and impulsiveness. There are three types of these disorders; inattentive, hyperactive/impulsive, and a combination (inattentive, hyperactive and impulsive).[10]

Treatment optionsEdit

The different kinds of medicines that can be taken to treat attention deficit (hyperactivity) disorder include central nervous system stimulants, antidepressants, antihypertensives, and selective norepinephrine reuptake inhibitors (SNRIs). Examples of central nervous system stimulants include Ritalin, Concerta, and Metadate (different forms of methylphenidate), Adderall (amphetamine and dextroamphetamine mixed salts) and Dexedrine (dextroamphetamine sulfate). Examples of the antidepressants, antihypertensives, and selective norepinephrine reuptake inhibitors commonly prescribed are bupropion, clonidine and atomoxetine, respectively.

SymptomsEdit

Symptoms of ADD/ADHD include inattentiveness, impulsiveness, and hyperactivity. Many of the behaviors that are associated with ADD/ADHD include poor control over actions resulting in disruptive behavior and academic problems. Another area that is affected by these disorders is the social arena for the person with the disorder. Many children that are afflicted with this disorder exhibit poor interpersonal relationships and struggle to fit in socially with their peers.[10]

Developmental aspect in mental healthEdit


See alsoEdit


ReferencesEdit

  1. 1.0 1.1 1.2 1.3 1.4 1.5 (2008) Rutter's Child and Adolescent Psychiatry, Fifth Edition, Dorothy Bishop and Michael Rutter, 32-33, Blackwell Publishing Ltd.
  2. http://priory.com/psych/ICD.htm
  3. National Joint Committee on Learning Disabilities. (1982). Learning disabilities: Issues on definition. Asha, 24 (11), 945-947.
  4. 4.0 4.1 4.2 4.3 4.4 Communication Disorders. (n.d.). Children's Hospital of Wisconsin in Milwaukee, WI, Retrieved December 6, 2011, from http://www.chw.org/display/PPF/DocID/
  5. Karmiloff, Annette. "Development itself is key to understanding developmental disorders". Page 1. Published October 1, 1998. Retrieved on November 26, 2011 from: http://www.sciencedirect.com/science/article/pii/S1364661398012303.
  6. Karmiloff, Annette. "Development itself is key to understanding developmental disorders". Page 1. Published October 1, 1998. Retrieved on November 26, 2011 from: http://www.sciencedirect.com/science/article/pii/S1364661398012303
  7. 7.0 7.1 Perry, Bruce D. and Szalavitz, Maia. "The Boy Who Was Raised As A Dog", Basic Books, 2006, p.2. ISBN 978-0-465-05653-8
  8. Payne, Kim John. “Simplicity Parenting: Using the Extraordinary Power of Less to Raise Calmer, Happier, and More Secure Kids”, Ballantine Books, 2010, p. 9. ISBN 9780345507983
  9. 9.0 9.1 9.2 9.3 Dereu, Mieke. (2010). Screening for Autism Spectrum Disorders in Flemish Day-Care Centers with the Checklist for Early Signs of Developmental Disorders. Springer Science+Business Media. 1247-1258.
  10. 10.0 10.1 Tresco, Katy E. (2004). Attention Deficit Disorders: School-Based Interventions. Pennsylvania: Bethlehem.

Further readingEdit

Key textsEdit

BooksEdit

PapersEdit

Additional materialEdit

BooksEdit

PapersEdit

External linksEdit

Template:Dyslexia and specific developmental disorders





fr:Trouble du développement
ja:発達障害

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