what difference is between autistic brain and normal brain?

Question

anonymous · Answer

Autism is a complex developmental disability that typically appears during the first three years of life and is the result of a neurological disorder that affects the normal functioning of the brain, impacting development in the areas of social interaction and communication skills. Both children and adults with autism typically show difficulties in verbal and non-verbal communication, social interactions, and leisure or play activities. One should keep in mind however, that autism is a spectrum disorder and it affects each individual differently and at varying degrees - this is why early diagnosis is so crucial. By learning the signs, a child can begin benefiting from one of the many specialized intervention programs.

anonymous · Answer

what about structural differences of brain?

anonymous · Answer

So the first noticeable structural difference is the shape and the direction of the brain stem. A sheep skull is in the same orientation to the spine but in humans there has been a 90 degree rotation as our ancestors evolved upright posture and locomotion. You can see the spinal nerves will attach to the brain stem and there is a comparable amount of nerves. This is common to all mammals as we have major similarities in the functional and sensory components of the post cranial body, the big differences in sensory perception come from the eyes and ears and they enter the brain directly rather than via the spinal column. As for the contours and ridges of the human brain this allows for a larger surface area which means more brain cells can fit in the space. More brain cells means more specialisation and you can see an example of this here: http://www.davidjparnell.com/blog/wp-con... The additional cells of the neocortex allow us to have increased socialisation which is important in a social species. Note that sheep are also social species so some of their brains are also devoted to this type of cognition, in fact it has been shown in goats that they are capable of taking visual cues from other individuals in their social group to know which foods are good to eat. Notice also the difference in the size of the ofactory bulb: http://www.faqs.org/health/images/uchr_0... . This shows how the sheep must devote more energy during development to this specialised region as it benefits them more than it does us.

king.void. · Answer

http://www.webmd.com/brain/autism/news/20110525/autism-brains-alike-very-different-from-normal-brains

anonymous · Answer

http://www.wired.com/2014/03/disordered-cortex-autism/ New evidence suggests that autistic brains have a wiring issue and that no two brains are "miss-wired" in the same way.