What is Divided Brain? This paragraph deals about patients suffering divided brain, therefore we will first explain something about the location of functions in the brain. This disease is also called split-brain, and the problem the patient has is that the both brain parts cannot communicate with each other. "Split-brain patients cannot combine information of both hemispheres." The brain has two hemispheres, the right and the left hemisphere. Those two hemispheres do look like mirror images of each other, but a closer examination reveals certain asymmetries. When the two hemispheres are measured during an autopsy, the left one is almost always larger than the right one. This anatomical difference are related to differences in functions between the two hemispheres: the left hemisphere is specialized for the use of language, while the right one is specialized for mental imagery and the understanding of spatial relationships. Speech and the production of sounds are usually located in the left hemisphere. But some left-handed people have speech centers located in the right hemisphere or divided between the two. Seeing is also complicated, the two eyes of you give their information to the opposite hemisphere; your right eye gives his information to the left hemisphere, and your left eye to the right hemisphere. The brain transforms this information so we see 'normal'. As a result of this the left hemisphere sees the right hand in the right visual field, this is correct because your right hemisphere controls you left body-half and otherwise. When someone is suffering a split-brain his both hemispheres cannot communicate. In a test, a person with a split brain is seated in front of a screen. Because of his split brain he cannot use his right hand to take something he sees with his left eye. When a word appears on the left side of the screen, the eye passes the information through to the right hemisphere so he won't understand the word because language depends on the left hemisphere. An important thing is that the word may not flashed on the screen for more than one-tenth of a second. if it remains longer the subject can move his eyes so that the word is also projected on the left hemisphere. Behavior Because people with split brain can not combine the information of both hemispheres, their behavior is pretty strange. Because he is not aware of everything that happens he can look stupid and his behavior can be illogical and vague.  Further reading:   Slit-Brain 1   Slit-Brain 2   Slit-Brain 3 Do you have more information about Split brain? Please share it in our database. [ TOP ]   © ThinkQuest Team 26618. All Rights Reserved.