Поиск

Полнотекстовый поиск:
Где искать:
везде
только в названии
только в тексте
Выводить:
описание
слова в тексте
только заголовок

Рекомендуем ознакомиться

Остальные работы->Реферат
The recent Presidential election between Al Gore and George W. Bush has sparked a controversial flame among American citizens. Should we keep the Elec...полностью>>
Остальные работы->Реферат
The Movie Industry is one of the most exciting and informative business in the world, a business where the revenue of a single feature film can approa...полностью>>
Остальные работы->Реферат
There are many different roles for women shown in “The Canterbury Tales” and “The Decameron”. Both books take place around the same time frame, 1300AD...полностью>>
Остальные работы->Реферат
When a person is lucky, it does not have to mean that they are fortunate with money. Luck is the chance for things to go the way you want them to go w...полностью>>

Главная > Реферат >Остальные работы

Сохрани ссылку в одной из сетей:

Autism Essay, Research Paper

Autism

Autism is one of the mental, emotional, and behavior disorders that

appears in early childhood. Autism, or autistic disorder, almost always

develops within the first 3 years of a child’s life. Children and adolescents

with autism cannot interact normally with other people. Autism thus affects

many aspects of their development.

Children with and adolescents with autism typically: -have a difficult

time communicating with others -exhibit very repetitious behaviors (like

rocking back and forth, head banging, or touching or twirling objects); -have a

limited range of interests and activities; and -may became upset at a small

change in their environment or daily routine.

Although symptoms of autistic disorder sometimes can be seen in early

infancy, the condition can appear after months of normal development. In most

cases, it is not possible to identify any specific event that triggers autistic

disorder. About 7 in every 10 children and adolescents with autistic disorder

also have mental retardation or other problems with their brain function or

structure.

Recent studies estimate that as many as 14 children out of 10,000 may

have autism or a related condition. About 125,000 Americans are affected by

these disorders, and nearly 4,000 families across the country have two or more

children with autism. Three times as many boys as girls have autism.

Researchers are still unsure about what causes autism. Several studies

suggest that autistic disorder might be caused by a combination of biological

factors, including exposure to a virus before birth, a problem with the immune

system, or genetics.

Scientists also have identified chemicals in the brain and the immune

system that may be involved in autistic disorder. As a normal brain develops,

the level of serotonin, a chemical found in the brain, declines. In some

children with autistic disorder, however, the serotonin levels do not decline.

Now researchers are trying to determine whether this happens only to children

with autism and why, and whether other factors are involved.


Загрузить файл

Похожие страницы:

  1. Autism Essay Research Paper

    Реферат >> Остальные работы
    Autism Essay, Research Paper  There are several reasons why I chose the topic of Autism. First, autism ... prompted me to do some research into autism and I found that these ... observed in patients afflicted with autism. Autism has mystified scientists and ...
  2. Autism Essay Research Paper Autism is not

    Реферат >> Остальные работы
    Autism Essay, Research Paper Autism is not a disease, but a developmental ... system disorders, including autism. The NINDS conducts research in its laboratories at ... signs and symptoms of autism. Researchers hope this research will provide new ...
  3. Autism Essay Research Paper Overview of AutismAutism

    Реферат >> Остальные работы
    Autism Essay, Research Paper Overview of Autism Autism or PPD (pervasive developmental disorder) ... . Some research has shown that there may be an autism gene, or ... is headlining the battle for autism. New research has shown substantial evidence ...
  4. Autism Essay Research Paper Autism Throughout the

    Реферат >> Остальные работы
    Autism Essay, Research Paper Autism Throughout the years the diagnosis of autism has changed dramatically. Once ... , or cystic fibrosis, and autism research still receives less than 5% ... known. The most current research links autism to neurological or biological ...
  5. Autism Essay Research Paper In general autism

    Реферат >> Остальные работы
    Autism Essay, Research Paper In general, autism is the developmental ... and exposure to autism (autism zone, review). Autism and related disorders ... no definite test for autism. Autism is usually first diagnosed ... and much research is going on now. Autism is like ...
  6. Autism Essay Research Paper A relatively rare

    Реферат >> Остальные работы
    Autism Essay, Research Paper A relatively rare multifactorial disorder occurring ... newest explorations in the research of causes of autism is that in ... of research professionals are beginning to realize that the symptoms of autism ...

Хочу больше похожих работ...

Generated in 0.0028328895568848