Part 1 of Essay
Expression. Research in the past has demonstrated that the right hemisphere of the brain is dominant in the perception and expression of emotion. As a result of crossing of the nervous system, the expectation was that the left side of the face would express emotion more intensely than the right. This was tested by using l ....

Part 2 of Essay
.... brain cross over to the contralateral side of the body (Marieb, 1998). This means that the sensory information from the right side of the body goes to the contralateral side of the brain, in this case the left hemisphere, and vice versa. Due to this cross over, each hemisphere has motor control over the contralateral side of the body. The brain’s hemispheres are specialised in their functions, amongst others, the left hemisphere is dominant in language, mathematical reasoning and logical thinking. The right hem ....