One of the great and enduring mysteries of autism is what causes the brain to develop so differently.
The behavioural differences of many individuals with autism are so apparent that it seems intuitive that the causes would also be obvious.
But research over the past 70 years has indicated this isn’t so.
Into this knowledge gap have come all sorts of weird and wacky ideas about the causes of autism: television, power lines, vaccines and sex position during conception.
None have any credence, but have fuelled the mystery surrounding what may cause autism.
In the 1950s and 1960s, there was a widely help belief that autism was caused by parental coldness towards the child.
The term “refrigerator mother” was often directed towards the mothers of these children.
Leo Kanner, the man who first described the behaviours that characterise autism, explored “a genuine lack of maternal warmth” as a possible explanation for autism.
This inaccurate belief left a legacy of shame and guilt in the autism community for at least the following two decades.
Several eminent scientists eventually extinguished the myth.
Two of them were themselves parents of children with autism, and they highlighted a major flaw in the theory: parents who fitted the “refrigerator” stereotype also had children who did not have autism.
Since this time, research has focused on biological factors that may lead to autistic behaviours.
This has found very clearly there is no one cause of autism.
A variety of genetic factors are likely to be the ultimate cause of most cases of autism.
These may work by themselves, or in combination with environmental factors, to lead a child’s brain to develop differently and result in autistic behaviours.
Genetics
To examine the influences of nature (genetics) and nurture (environment) on a given human quality, scientists study twins.
Environmental causes
Recognition has grown over the past decade that aspects of our environment may also contribute to autism.
However, despite substantial research, no one environmental factor has yet been found to be a definite cause of autism.
Brain development
For a considerable time scientists were searching for one clear brain difference that may be lead to autistic behaviours.
However, this hope has yet to be fulfilled, with few studies identifying brain characteristics that are shared by different individuals diagnosed with autism.
Other biological factors
There is preliminary evidence some but not all individuals with autism are exposed to higher levels of testosterone in the womb.
Excessively high testosterone concentrations in the bloodstream can be harmful and cause cells to die, particularly within the brain, which is highly sensitive to changes in hormone levels.
source; http://theconversation.com
Un artículo muy interesante. Una pena que quizás no pueda ser leído por muchos interesados por el idioma. Quizás podría publicarse en español mediante una sencilla herramienta de traducción automática del inglés al español haciendo una indicación de ello al principio por si hubiera alguna parte de la traducción no del todo correcta (por ej. «Este texto ha sido traducido del inglés al español por un programa de forma automática. Podría contener errores o inexactitudes debido a ello. Pueden consultar el artículo en el idioma original en el link indicado al final del artículo»).
Muchas gracias por los comentarios, todos los artículos en el blog en Ingles serán traducidos proximamente, solo quedaran en Ingles en la pagina creada para ese objetivo.
Un saludo
Can I just say what a relief to find someone who actually knows what theyre talking about on the internet. You definitely know how to bring an issue to light and make it important. More people need to read this and understand this side of the story. I cant believe youre not more popular because you definitely have the gift.
How do i put the blog observe content on my myspace to okay diary comments before notice them?
With havin so much written content do you ever run into any issues of plagorism or copyright infringement?
My website has a lot of unique content I’ve either authored myself or outsourced
but it looks like a lot of it is popping it up all over
the internet without my agreement. Do you know any techniques to help reduce
content from being stolen? I’d certainly appreciate it.
Hi it’s me, I am also visiting this site on a regular basis, this web page is in fact pleasant and the visitors are in fact sharing nice thoughts.|
Just wish to say your article is as astonishing. The clearness on your submit is simply cool and i can suppose you are a professional in this subject. Fine with your permission allow me to clutch your feed to keep up to date with drawing close post. Thank you a million and please continue the enjoyable work.|
Hi there! Would you mind if I share your blog with my myspace group? There’s a lot of people that I think would really appreciate your content. Please let me know. Many thanks|
I relish, cause I discovered just what I used to be having a look for. You’ve ended my four day lengthy hunt! God Bless you man. Have a great day. Bye|
Great work! That is the kind of information that are supposed to be shared around the web. Shame on Google for no longer positioning this publish higher! Come on over and consult with my web site . Thank you =)|
Wow, that’s what I was looking for, what a data! present here at this website, thanks admin of this web site.|
Thanks for sharing your thoughts on %meta_keyword%. Regards|
You can certainly see your expertise in the article you write. The world hopes for more passionate writers like you who aren’t afraid to mention how they believe. Always go after your heart.|
Hello! I’ve been following your blog for a long time now and finally got the courage to go ahead and give you a shout out from Lubbock Tx! Just wanted to mention keep up the good work!|
I like looking through a post that can make men and women think. Also, many thanks for allowing for me to comment!|
Very good article. I certainly appreciate this site. Keep
it up!
Good day! Would you mind if I share your blog with my zynga
group? There’s a lot of people that I think would really enjoy your content.
Please let me know. Many thanks
Yes! Finally someone writes about a.
Howdy! Do you use Twitter? I’d like to follow
you if that would be okay. I’m undoubtedly enjoying your blog and look
forward to new posts.
Great weblog right here! Additionally your web site a lot up very fast!
What host are you the usage of? Can I am getting your affiliate link
in your host? I wish my web site loaded up as quickly as yours lol
Howdy! I simply wish to give you a huge thumbs up for the great info you have got here on this post.
I am returning to your website for more soon.
Hello Dear, are you really visiting this web site regularly, if so after that you will without doubt get
pleasant knowledge.
Link exchange is nothing else however it is simply placing the other person’s web
site link on your page at appropriate place and other person will also do similar in support
of you.
Thank you great post. Hello Administ . Cami Halısı ve Cami Halıları , Yün Cami Halısı , Göbekli Cami Halısı , Saflı Cami Halısı , Akrilik Cami Halısı , iLetişim : Skype: By_uMuT@KRaLBenim.Com