What differences, if any, are there between the function of the normal brainstem and that of the split-brain brainstem?

The split brain stem refers to the product obtain when the corpus callosum which separate the two brain hemisphere is severed to some extent or is totally removed. Research has discovered that splitting the brain into two halves affect the behavior of the affected person.
A number of differences had been identified between people with normal brain stem and those with split brain stem.
One of the differences is the resulting lack of coordination between the left and the right part of the body exhibited by those who have had one part of their brain removed. Also, this people show limited sight overview and language disability.