English
0 view | +0 today
Follow
Your new post is loading...
Your new post is loading...
Rescooped by Lii Toots from Amazing Science
Scoop.it!

Woman of 24 found to have no cerebellum in her brain

Woman of 24 found to have no cerebellum in her brain | English | Scoop.it

A 24-year-old woman has discovered that her cerebellum is completely missing, explaining some of the unusual problems she has had with movement and speech. The case highlights just how adaptable the organ is.


The discovery was made when the woman was admitted to the Chinese PLA General Hospital of Jinan Military Area Command in Shandong Province complaining of dizziness and nausea. She told doctors she'd had problems walking steadily for most of her life, and her mother reported that she hadn't walked until she was 7 and that her speech only became intelligible at the age of 6.

 

Doctors did a CAT scan and immediately identified the source of the problem – her entire cerebellum was missing (see scan, below left). The space where it should be was empty of tissue. Instead it was filled with cerebrospinal fluid, which cushions the brain and provides defence against disease.


The cerebellum – sometimes known as the "little brain" – is located underneath the two hemispheres. It looks different from the rest of the brain because it consists of much smaller and more compact folds of tissue. It represents about 10 per cent of the brain's total volume but contains 50 per cent of its neurons.


Although it is not unheard of to have part of your brain missing, either congenitally or from surgery, the woman joins an elite club of just nine people who are known to have lived without their entire cerebellum. A detailed description of how the disorder affects a living adult is almost non-existent, say doctors from the Chinese hospital, because most people with the condition die at a young age and the problem is only discovered on autopsy (Brain,doi.org/vh7).


The cerebellum's main job is to control voluntary movements and balance, and it is also thought to be involved in our ability to learn specific motor actions and speak. Problems in the cerebellum can lead to severe mental impairment, movement disorders, epilepsy or a potentially fatal build-up of fluid in the brain. However, in this woman, the missing cerebellum resulted in only mild to moderate motor deficiency, and mild speech problems such as slightly slurred pronunciation. Her doctors describe these effects as "less than would be expected", and say her case highlights the remarkable plasticity of the brain.


Via Dr. Stefan Gruenwald
more...
No comment yet.
Rescooped by Lii Toots from teaching with technology
Scoop.it!

197 Educational YouTube Channels You Should Know About

197 Educational YouTube Channels You Should Know About | English | Scoop.it

Via Beth Dichter, Louise Robinson-Lay
more...
Arthur Correia's curator insight, November 27, 2013 9:15 AM

 It's a reshare...and it won't be tha last :)!

carldowse's curator insight, January 16, 2014 4:56 AM

Must be something there for us!

Judy Brown's curator insight, May 29, 2014 7:32 PM

Autistic kids need to be shown lots of love and need a teacher who will treat them right.